This is what I got from python -c "import theano" > theano_import_error.log 2>&1.
Environment: Windows 7 + Python 3.4 + Theano-c85d1953f40e2ea6d6b2ddc5dd40370f1aa8b202.
00001 #include <Python.h>
00002 #include "structmember.h"
00003 #include <sys/time.h>
00004
00005 // Old Python compatibility from here:
00006 // http://www.python.org/dev/peps/pep-0353/
00007 #if PY_VERSION_HEX < 0x02050000 && !defined(PY_SSIZE_T_MIN)
00008 typedef int Py_ssize_t;
00009 #define PY_SSIZE_T_MAX INT_MAX
00010 #define PY_SSIZE_T_MIN INT_MIN
00011 // This one was taken from:
00012 // http://svn.python.org/projects/python/trunk/Modules/_ctypes/ctypes.h
00013 #define PyNumber_AsSsize_t(ob, exc) PyInt_AsLong(ob)
00014 #endif
00015
00016 #if PY_VERSION_HEX >= 0x03000000
00017 #include "numpy/npy_3kcompat.h"
00018 #define PyCObject_AsVoidPtr NpyCapsule_AsVoidPtr
00019 #define PyCObject_GetDesc NpyCapsule_GetDesc
00020 #define PyCObject_Check NpyCapsule_Check
00021 #endif
00022
00023 #ifndef Py_TYPE
00024 #define Py_TYPE(obj) obj->ob_type
00025 #endif
00026
00027 /**
00028
00029 TODO:
00030 - Check max supported depth of recursion
00031 - CLazyLinker should add context information to errors caught during evaluation. Say what node we were on, add the traceback attached to the node.
00032 - Clear containers of fully-useed intermediate results if allow_gc is 1
00033 - Add timers for profiling
00034 - Add support for profiling space used.
00035
00036
00037 */
00038 static double pytime(const struct timeval * tv)
00039 {
00040 struct timeval t;
00041 if (!tv)
00042 {
00043 tv = &t;
00044 gettimeofday(&t, NULL);
00045 }
00046 return (double) tv->tv_sec + (double) tv->tv_usec / 1000000.0;
00047 }
00048
00049 /**
00050 Helper routine to convert a PyList of integers to a c array of integers.
00051 */
00052 static int unpack_list_of_ssize_t(PyObject * pylist, Py_ssize_t **dst, Py_ssize_t *len,
00053 const char* kwname)
00054 {
00055 Py_ssize_t buflen, *buf;
00056 if (!PyList_Check(pylist))
00057 {
00058 PyErr_Format(PyExc_TypeError, "%s must be list", kwname);
00059 return -1;
00060 }
00061 assert (NULL == *dst);
00062 *len = buflen = PyList_Size(pylist);
00063 *dst = buf = (Py_ssize_t*)calloc(buflen, sizeof(Py_ssize_t));
00064 assert(buf);
00065 for (int ii = 0; ii < buflen; ++ii)
00066 {
00067 PyObject * el_i = PyList_GetItem(pylist, ii);
00068 Py_ssize_t n_i = PyNumber_AsSsize_t(el_i, PyExc_IndexError);
00069 if (PyErr_Occurred())
00070 {
00071 free(buf);
00072 *dst = NULL;
00073 return -1;
00074 }
00075 buf[ii] = n_i;
00076 }
00077 return 0;
00078 }
00079
00080 /**
00081
00082 CLazyLinker
00083
00084
00085 */
00086 typedef struct {
00087 PyObject_HEAD
00088 /* Type-specific fields go here. */
00089 PyObject * nodes; // the python list of nodes
00090 PyObject * thunks; // python list of thunks
00091 PyObject * pre_call_clear; //list of cells to clear on call.
00092 int allow_gc;
00093 Py_ssize_t n_applies;
00094 int n_vars; // number of variables in the graph
00095 int * var_computed; // 1 or 0 for every variable
00096 PyObject ** var_computed_cells;
00097 PyObject ** var_value_cells;
00098 Py_ssize_t **dependencies; // list of vars dependencies for GC
00099 Py_ssize_t *n_dependencies;
00100
00101 Py_ssize_t n_output_vars;
00102 Py_ssize_t * output_vars; // variables that *must* be evaluated by call
00103
00104 int * is_lazy; // 1 or 0 for every thunk
00105
00106 Py_ssize_t * var_owner; // nodes[[var_owner[var_idx]]] is var[var_idx]->owner
00107 int * var_has_owner; // 1 or 0
00108
00109 Py_ssize_t * node_n_inputs;
00110 Py_ssize_t * node_n_outputs;
00111 Py_ssize_t ** node_inputs;
00112 Py_ssize_t ** node_outputs;
00113 Py_ssize_t * node_inputs_outputs_base; // node_inputs and node_outputs point into this
00114 Py_ssize_t * node_n_prereqs;
00115 Py_ssize_t ** node_prereqs;
00116
00117 Py_ssize_t * update_storage; // input cells to update with the last outputs in output_vars
00118 Py_ssize_t n_updates;
00119
00120 void ** thunk_cptr_fn;
00121 void ** thunk_cptr_data;
00122 PyObject * call_times;
00123 PyObject * call_counts;
00124 int do_timing;
00125 int need_update_inputs;
00126 int position_of_error; // -1 for no error, otw the index into `thunks` that failed.
00127 } CLazyLinker;
00128
00129
00130 static void
00131 CLazyLinker_dealloc(PyObject* _self)
00132 {
00133 CLazyLinker* self = (CLazyLinker *) _self;
00134 free(self->thunk_cptr_fn);
00135 free(self->thunk_cptr_data);
00136
00137 free(self->is_lazy);
00138
00139 free(self->update_storage);
00140
00141 if (self->node_n_prereqs)
00142 {
00143 for (int i = 0; i < self->n_applies; ++i)
00144 {
00145 free(self->node_prereqs[i]);
00146 }
00147 }
00148 free(self->node_n_prereqs);
00149 free(self->node_prereqs);
00150 free(self->node_inputs_outputs_base);
00151 free(self->node_n_inputs);
00152 free(self->node_n_outputs);
00153 free(self->node_inputs);
00154 free(self->node_outputs);
00155
00156 if (self->dependencies)
00157 {
00158 for (int i = 0; i < self->n_vars; ++i)
00159 {
00160 free(self->dependencies[i]);
00161 }
00162 free(self->dependencies);
00163 free(self->n_dependencies);
00164 }
00165
00166 free(self->var_owner);
00167 free(self->var_has_owner);
00168 free(self->var_computed);
00169 if (self->var_computed_cells)
00170 {
00171 for (int i = 0; i < self->n_vars; ++i)
00172 {
00173 Py_DECREF(self->var_computed_cells[i]);
00174 Py_DECREF(self->var_value_cells[i]);
00175 }
00176 }
00177 free(self->var_computed_cells);
00178 free(self->var_value_cells);
00179 free(self->output_vars);
00180
00181 Py_XDECREF(self->nodes);
00182 Py_XDECREF(self->thunks);
00183 Py_XDECREF(self->call_times);
00184 Py_XDECREF(self->call_counts);
00185 Py_XDECREF(self->pre_call_clear);
00186 Py_TYPE(self)->tp_free((PyObject*)self);
00187 }
00188 static PyObject *
00189 CLazyLinker_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
00190 {
00191 CLazyLinker *self;
00192
00193 self = (CLazyLinker *)type->tp_alloc(type, 0);
00194 if (self != NULL) {
00195 self->nodes = NULL;
00196 self->thunks = NULL;
00197 self->pre_call_clear = NULL;
00198
00199 self->allow_gc = 1;
00200 self->n_applies = 0;
00201 self->n_vars = 0;
00202 self->var_computed = NULL;
00203 self->var_computed_cells = NULL;
00204 self->var_value_cells = NULL;
00205 self->dependencies = NULL;
00206 self->n_dependencies = NULL;
00207
00208 self->n_output_vars = 0;
00209 self->output_vars = NULL;
00210
00211 self->is_lazy = NULL;
00212
00213 self->var_owner = NULL;
00214 self->var_has_owner = NULL;
00215
00216 self->node_n_inputs = NULL;
00217 self->node_n_outputs = NULL;
00218 self->node_inputs = NULL;
00219 self->node_outputs = NULL;
00220 self->node_inputs_outputs_base = NULL;
00221 self->node_prereqs = NULL;
00222 self->node_n_prereqs = NULL;
00223
00224 self->update_storage = NULL;
00225 self->n_updates = 0;
00226
00227 self->thunk_cptr_data = NULL;
00228 self->thunk_cptr_fn = NULL;
00229 self->call_times = NULL;
00230 self->call_counts = NULL;
00231 self->do_timing = 0;
00232
00233 self->need_update_inputs = 0;
00234 self->position_of_error = -1;
00235 }
00236 return (PyObject *)self;
00237 }
00238
00239 static int
00240 CLazyLinker_init(CLazyLinker *self, PyObject *args, PyObject *kwds)
00241 {
00242 static char *kwlist[] = {
00243 (char*)"nodes",
00244 (char*)"thunks",
00245 (char*)"pre_call_clear",
00246 (char*)"allow_gc",
00247 (char*)"call_counts",
00248 (char*)"call_times",
00249 (char*)"compute_map_list",
00250 (char*)"storage_map_list",
00251 (char*)"base_input_output_list",
00252 (char*)"node_n_inputs",
00253 (char*)"node_n_outputs",
00254 (char*)"node_input_offset",
00255 (char*)"node_output_offset",
00256 (char*)"var_owner",
00257 (char*)"is_lazy_list",
00258 (char*)"output_vars",
00259 (char*)"node_prereqs",
00260 (char*)"node_output_size",
00261 (char*)"update_storage",
00262 (char*)"dependencies",
00263 NULL};
00264
00265 PyObject *compute_map_list=NULL,
00266 *storage_map_list=NULL,
00267 *base_input_output_list=NULL,
00268 *node_n_inputs=NULL,
00269 *node_n_outputs=NULL,
00270 *node_input_offset=NULL,
00271 *node_output_offset=NULL,
00272 *var_owner=NULL,
00273 *is_lazy=NULL,
00274 *output_vars=NULL,
00275 *node_prereqs=NULL,
00276 *node_output_size=NULL,
00277 *update_storage=NULL,
00278 *dependencies=NULL;
00279
00280 assert(!self->nodes);
00281 if (! PyArg_ParseTupleAndKeywords(args, kwds, "OOOiOOOOOOOOOOOOOOOO", kwlist,
00282 &self->nodes,
00283 &self->thunks,
00284 &self->pre_call_clear,
00285 &self->allow_gc,
00286 &self->call_counts,
00287 &self->call_times,
00288 &compute_map_list,
00289 &storage_map_list,
00290 &base_input_output_list,
00291 &node_n_inputs,
00292 &node_n_outputs,
00293 &node_input_offset,
00294 &node_output_offset,
00295 &var_owner,
00296 &is_lazy,
00297 &output_vars,
00298 &node_prereqs,
00299 &node_output_size,
00300 &update_storage,
00301 &dependencies
00302 ))
00303 return -1;
00304 Py_INCREF(self->nodes);
00305 Py_INCREF(self->thunks);
00306 Py_INCREF(self->pre_call_clear);
00307 Py_INCREF(self->call_counts);
00308 Py_INCREF(self->call_times);
00309
00310 Py_ssize_t n_applies = PyList_Size(self->nodes);
00311
00312 self->n_applies = n_applies;
00313 self->n_vars = PyList_Size(var_owner);
00314
00315 if (PyList_Size(self->thunks) != n_applies) return -1;
00316 if (PyList_Size(self->call_counts) != n_applies) return -1;
00317 if (PyList_Size(self->call_times) != n_applies) return -1;
00318
00319 // allocated and initialize thunk_cptr_data and thunk_cptr_fn
00320 if (n_applies)
00321 {
00322 self->thunk_cptr_data = (void**)calloc(n_applies, sizeof(void*));
00323 self->thunk_cptr_fn = (void**)calloc(n_applies, sizeof(void*));
00324 self->is_lazy = (int*)calloc(n_applies, sizeof(int));
00325 self->node_prereqs = (Py_ssize_t**)calloc(n_applies, sizeof(Py_ssize_t*));
00326 self->node_n_prereqs = (Py_ssize_t*)calloc(n_applies, sizeof(Py_ssize_t));
00327 assert(self->node_prereqs);
00328 assert(self->node_n_prereqs);
00329 assert(self->is_lazy);
00330 assert(self->thunk_cptr_fn);
00331 assert(self->thunk_cptr_data);
00332
00333 for (int i = 0; i < n_applies; ++i)
00334 {
00335 PyObject * thunk = PyList_GetItem(self->thunks, i);
00336 //thunk is borrowed
00337 if (PyObject_HasAttrString(thunk, "cthunk"))
00338 {
00339 PyObject * cthunk = PyObject_GetAttrString(thunk, "cthunk");
00340 //new reference
00341 assert (cthunk && PyCObject_Check(cthunk));
00342 self->thunk_cptr_fn[i] = PyCObject_AsVoidPtr(cthunk);
00343 self->thunk_cptr_data[i] = PyCObject_GetDesc(cthunk);
00344 Py_DECREF(cthunk);
00345 // cthunk is kept alive by membership in self->thunks
00346 }
00347
00348 PyObject * el_i = PyList_GetItem(is_lazy, i);
00349 self->is_lazy[i] = PyNumber_AsSsize_t(el_i, NULL);
00350
00351 /* now get the prereqs */
00352 el_i = PyList_GetItem(node_prereqs, i);
00353 assert (PyList_Check(el_i));
00354 self->node_n_prereqs[i] = PyList_Size(el_i);
00355 if (self->node_n_prereqs[i])
00356 {
00357 self->node_prereqs[i] = (Py_ssize_t*)malloc(
00358 PyList_Size(el_i)*sizeof(Py_ssize_t));
00359 for (int j = 0; j < PyList_Size(el_i); ++j)
00360 {
00361 PyObject * el_ij = PyList_GetItem(el_i, j);
00362 Py_ssize_t N = PyNumber_AsSsize_t(el_ij, PyExc_IndexError);
00363 if (PyErr_Occurred())
00364 return -1;
00365 // N < n. variables
00366 assert(N < PyList_Size(var_owner));
00367 self->node_prereqs[i][j] = N;
00368 }
00369 }
00370 }
00371 }
00372 if (PyList_Check(base_input_output_list))
00373 {
00374 Py_ssize_t n_inputs_outputs_base = PyList_Size(base_input_output_list);
00375 self->node_inputs_outputs_base = (Py_ssize_t*)calloc(n_inputs_outputs_base,sizeof(Py_ssize_t));
00376 assert(self->node_inputs_outputs_base);
00377 for (int i = 0; i < n_inputs_outputs_base; ++i)
00378 {
00379 PyObject *el_i = PyList_GetItem(base_input_output_list, i);
00380 Py_ssize_t idx = PyNumber_AsSsize_t(el_i, PyExc_IndexError);
00381 if (PyErr_Occurred()) return -1;
00382 self->node_inputs_outputs_base[i] = idx;
00383 }
00384 self->node_n_inputs = (Py_ssize_t*)calloc(n_applies,sizeof(Py_ssize_t));
00385 assert(self->node_n_inputs);
00386 self->node_n_outputs = (Py_ssize_t*)calloc(n_applies,sizeof(Py_ssize_t));
00387 assert(self->node_n_outputs);
00388 self->node_inputs = (Py_ssize_t**)calloc(n_applies,sizeof(Py_ssize_t*));
00389 assert(self->node_inputs);
00390 self->node_outputs = (Py_ssize_t**)calloc(n_applies,sizeof(Py_ssize_t*));
00391 assert(self->node_outputs);
00392 for (int i = 0; i < n_applies; ++i)
00393 {
00394 Py_ssize_t N;
00395 N = PyNumber_AsSsize_t(PyList_GetItem(node_n_inputs, i),PyExc_IndexError);
00396 if (PyErr_Occurred()) return -1;
00397 assert (N <= n_inputs_outputs_base);
00398 self->node_n_inputs[i] = N;
00399 N = PyNumber_AsSsize_t(PyList_GetItem(node_n_outputs, i),PyExc_IndexError);
00400 if (PyErr_Occurred()) return -1;
00401 assert (N <= n_inputs_outputs_base);
00402 self->node_n_outputs[i] = N;
00403 N = PyNumber_AsSsize_t(PyList_GetItem(node_input_offset, i),PyExc_IndexError);
00404 if (PyErr_Occurred()) return -1;
00405 assert (N <= n_inputs_outputs_base);
00406 self->node_inputs[i] = &self->node_inputs_outputs_base[N];
00407 N = PyNumber_AsSsize_t(PyList_GetItem(node_output_offset, i),PyExc_IndexError);
00408 if (PyErr_Occurred()) return -1;
00409 assert (N <= n_inputs_outputs_base);
00410 self->node_outputs[i] = &self->node_inputs_outputs_base[N];
00411 }
00412 }
00413 else
00414 {
00415 PyErr_SetString(PyExc_TypeError, "base_input_output_list must be list");
00416 return -1;
00417 }
00418
00419 // allocation for var_owner
00420 if (PyList_Check(var_owner))
00421 {
00422 self->var_owner = (Py_ssize_t*)calloc(self->n_vars,sizeof(Py_ssize_t));
00423 self->var_has_owner = (int*)calloc(self->n_vars,sizeof(int));
00424 self->var_computed = (int*)calloc(self->n_vars,sizeof(int));
00425 self->var_computed_cells = (PyObject**)calloc(self->n_vars,sizeof(PyObject*));
00426 self->var_value_cells = (PyObject**)calloc(self->n_vars,sizeof(PyObject*));
00427 for (int i = 0; i < self->n_vars; ++i)
00428 {
00429 PyObject * el_i = PyList_GetItem(var_owner, i);
00430 if (el_i == Py_None)
00431 {
00432 self->var_has_owner[i] = 0;
00433 }
00434 else
00435 {
00436 Py_ssize_t N = PyNumber_AsSsize_t(el_i, PyExc_IndexError);
00437 if (PyErr_Occurred()) return -1;
00438 assert (N <= n_applies);
00439 self->var_owner[i] = N;
00440 self->var_has_owner[i] = 1;
00441 }
00442 self->var_computed_cells[i] = PyList_GetItem(compute_map_list, i);
00443 Py_INCREF(self->var_computed_cells[i]);
00444 self->var_value_cells[i] = PyList_GetItem(storage_map_list, i);
00445 Py_INCREF(self->var_value_cells[i]);
00446 }
00447 }
00448 else
00449 {
00450 PyErr_SetString(PyExc_TypeError, "var_owner must be list");
00451 return -1;
00452 }
00453
00454 if (dependencies != Py_None)
00455 {
00456 self->dependencies = (Py_ssize_t**)calloc(self->n_vars, sizeof(Py_ssize_t *));
00457 self->n_dependencies = (Py_ssize_t*)calloc(self->n_vars, sizeof(Py_ssize_t));
00458 assert(self->dependencies);
00459 assert(self->n_dependencies);
00460
00461 for (int i = 0; i < self->n_vars; ++i)
00462 {
00463 PyObject *tmp = PyList_GetItem(dependencies, i);
00464 // refcounting - tmp is borrowed
00465 if (unpack_list_of_ssize_t(tmp, &self->dependencies[i], &self->n_dependencies[i],
00466 "dependencies"))
00467 return -1;
00468 }
00469 }
00470
00471 if (unpack_list_of_ssize_t(output_vars, &self->output_vars, &self->n_output_vars,
00472 "output_vars"))
00473 return -1;
00474 for (int i = 0; i < self->n_output_vars; ++i)
00475 {
00476 assert(self->output_vars[i] < self->n_vars);
00477 }
00478 if (unpack_list_of_ssize_t(update_storage, &self->update_storage, &self->n_updates,
00479 "updates_storage"))
00480 return -1;
00481 return 0;
00482 }
00483 static void set_position_of_error(CLazyLinker * self, int owner_idx)
00484 {
00485 if (self->position_of_error == -1)
00486 {
00487 self->position_of_error = owner_idx;
00488 }
00489 }
00490 static PyObject * pycall(CLazyLinker * self, Py_ssize_t node_idx, int verbose)
00491 {
00492 // call thunk to see which inputs it wants
00493 PyObject * thunk = PyList_GetItem(self->thunks, node_idx);
00494 // refcounting - thunk is borrowed
00495 PyObject * rval = NULL;
00496 if (self->do_timing)
00497 {
00498 double t0 = pytime(NULL);
00499 if (verbose) fprintf(stderr, "calling via Python (node %i)\n", (int)node_idx);
00500 rval = PyObject_CallObject(thunk, NULL);
00501 if (rval)
00502 {
00503 double t1 = pytime(NULL);
00504 double ti = PyFloat_AsDouble(
00505 PyList_GetItem(self->call_times, node_idx));
00506 PyList_SetItem(self->call_times, node_idx,
00507 PyFloat_FromDouble(t1 - t0 + ti));
00508 PyObject * count = PyList_GetItem(self->call_counts, node_idx);
00509 long icount = PyInt_AsLong(count);
00510 PyList_SetItem(self->call_counts, node_idx,
00511 PyInt_FromLong(icount + 1));
00512 }
00513 }
00514 else
00515 {
00516 if (verbose)
00517 {
00518 fprintf(stderr, "calling via Python (node %i)\n", (int)node_idx);
00519 }
00520 rval = PyObject_CallObject(thunk, NULL);
00521 }
00522 return rval;
00523 }
00524 static int c_call(CLazyLinker * self, Py_ssize_t node_idx, int verbose)
00525 {
00526 void * ptr_addr = self->thunk_cptr_fn[node_idx];
00527 int (*fn)(void*) = (int (*)(void*))(ptr_addr);
00528 if (verbose) fprintf(stderr, "calling non-lazy shortcut (node %i)\n", (int)node_idx);
00529 int err = 0;
00530 if (self->do_timing)
00531 {
00532 double t0 = pytime(NULL);
00533 err = fn(self->thunk_cptr_data[node_idx]);
00534 double t1 = pytime(NULL);
00535 double ti = PyFloat_AsDouble(PyList_GetItem(self->call_times, node_idx));
00536 PyList_SetItem(self->call_times, node_idx, PyFloat_FromDouble(t1 - t0 + ti));
00537 PyObject * count = PyList_GetItem(self->call_counts, node_idx);
00538 long icount = PyInt_AsLong(count);
00539 PyList_SetItem(self->call_counts, node_idx, PyInt_FromLong(icount+1));
00540 }
00541 else
00542 {
00543 err = fn(self->thunk_cptr_data[node_idx]);
00544 }
00545
00546 if (err)
00547 {
00548 // cast the argument to a PyList (as described near line 226 of cc.py)
00549 PyObject * __ERROR = ((PyObject**)self->thunk_cptr_data[node_idx])[0];
00550 assert (PyList_Check(__ERROR));
00551 assert (PyList_Size(__ERROR) == 3);
00552 PyObject * err_type = PyList_GetItem(__ERROR, 0); //stolen ref
00553 PyObject * err_msg = PyList_GetItem(__ERROR, 1); //stolen ref
00554 PyObject * err_trace = PyList_GetItem(__ERROR, 2); //stolen ref
00555 PyList_SET_ITEM(__ERROR, 0, Py_None); Py_INCREF(Py_None); //clobbers old ref
00556 PyList_SET_ITEM(__ERROR, 1, Py_None); Py_INCREF(Py_None); //clobbers old ref
00557 PyList_SET_ITEM(__ERROR, 2, Py_None); Py_INCREF(Py_None); //clobbers old ref
00558
00559 assert(!PyErr_Occurred()); // because CLinker hid the exception in __ERROR aka data
00560 PyErr_Restore(err_type, err_msg, err_trace); //steals refs to args
00561 }
00562 if (err) set_position_of_error(self, node_idx);
00563 return err;
00564 }
00565 static
00566 int lazy_rec_eval(CLazyLinker * self, Py_ssize_t var_idx, PyObject*one, PyObject*zero)
00567 {
00568 PyObject *rval = NULL;
00569 int verbose = 0;
00570 int err = 0;
00571
00572 if (verbose) fprintf(stderr, "lazy_rec computing %i\n", (int)var_idx);
00573
00574 if (self->var_computed[var_idx] || !self->var_has_owner[var_idx])
00575 return 0;
00576
00577 Py_ssize_t owner_idx = self->var_owner[var_idx];
00578
00579 // STEP 1: compute the pre-requirements of the node
00580 // Includes input nodes for non-lazy ops.
00581 for (int i = 0; i < self->node_n_prereqs[owner_idx]; ++i)
00582 {
00583 Py_ssize_t prereq_idx = self->node_prereqs[owner_idx][i];
00584 if (!self->var_computed[prereq_idx])
00585 {
00586 err = lazy_rec_eval(self, prereq_idx, one, zero);
00587 if (err) return err;
00588 }
00589 assert (self->var_computed[prereq_idx]);
00590 }
00591
00592 // STEP 2: compute the node itself
00593 if (self->is_lazy[owner_idx])
00594 {
00595 // update the compute_map cells corresponding to the inputs of this thunk
00596 for (int i = 0; i < self->node_n_inputs[owner_idx]; ++i)
00597 {
00598 int in_idx = self->node_inputs[owner_idx][i];
00599 if (self->var_computed[in_idx])
00600 {
00601 Py_INCREF(one);
00602 err = PyList_SetItem(self->var_computed_cells[in_idx], 0, one);
00603 }
00604 else
00605 {
00606 Py_INCREF(zero);
00607 err = PyList_SetItem(self->var_computed_cells[in_idx], 0, zero);
00608 }
00609 if (err) goto fail;
00610 }
00611
00612 rval = pycall(self, owner_idx, verbose);
00613 // refcounting - rval is new ref
00614 //TODO: to prevent infinite loops
00615 // - consider check that a thunk does not ask for an input that is already computed
00616 if (rval == NULL)
00617 {
00618 assert (PyErr_Occurred());
00619 err = 1;
00620 goto fail;
00621 }
00622
00623 //update the computed-ness of any output cells
00624 for (int i = 0; i < self->node_n_outputs[owner_idx]; ++i)
00625 {
00626 int out_idx = self->node_outputs[owner_idx][i];
00627 PyObject * el_i = PyList_GetItem(self->var_computed_cells[out_idx], 0);
00628 Py_ssize_t N = PyNumber_AsSsize_t(el_i, PyExc_IndexError);
00629 if (PyErr_Occurred())
00630 {
00631 err = -1;
00632 goto pyfail;
00633 }
00634 assert (N==0 || N==1);
00635 self->var_computed[out_idx] = N;
00636 }
00637 if (!self->var_computed[var_idx])
00638 {
00639 /*
00640 * If self is not computed after the call, this means that some
00641 * inputs are needed. Compute the ones on the returned list
00642 * and try to compute the current node again (with recursive call).
00643 * This allows a node to request more nodes more than once before
00644 * finally yielding a result.
00645 */
00646 if (!PyList_Check(rval))
00647 {
00648 //TODO: More helpful error to help find *which node* made this
00649 // bad thunk
00650 PyErr_SetString(PyExc_TypeError,
00651 "lazy thunk should return a list");
00652 err = 1;
00653 goto pyfail;
00654 }
00655
00656 if (!PyList_Size(rval))
00657 {
00658 PyErr_SetString(PyExc_ValueError,
00659 "lazy thunk returned empty list without computing output");
00660 err = 1;
00661 goto pyfail;
00662 }
00663
00664 for (int i = 0; i < PyList_Size(rval); ++i)
00665 {
00666 PyObject * el_i = PyList_GetItem(rval, i);
00667 Py_ssize_t N = PyNumber_AsSsize_t(el_i, PyExc_IndexError);
00668 if (PyErr_Occurred())
00669 {
00670 err = 1;
00671 goto pyfail;
00672 }
00673 assert (N <= self->node_n_inputs[owner_idx]);
00674 Py_ssize_t input_idx = self->node_inputs[owner_idx][N];
00675 err = lazy_rec_eval(self, input_idx, one, zero);
00676 if (err) goto pyfail;
00677 }
00678
00679 Py_DECREF(rval);
00680 /*
00681 * We intentionally skip all the end-of-function processing
00682 * (mark outputs, GC) as it will be performed by the call
00683 * that actually manages to compute the result.
00684 */
00685 return lazy_rec_eval(self, var_idx, one, zero);
00686 }
00687
00688 Py_DECREF(rval);
00689 }
00690 else //owner is not a lazy op. Ensure all intputs are evaluated.
00691 {
00692 // loop over inputs to owner
00693 // call lazy_rec_eval on each one that is not computed.
00694 // if there's an error, pass it up the stack
00695 for (int i = 0; i < self->node_n_inputs[owner_idx]; ++i)
00696 {
00697 Py_ssize_t input_idx = self->node_inputs[owner_idx][i];
00698 if (!self->var_computed[input_idx])
00699 {
00700 err = lazy_rec_eval(self, input_idx, one, zero);
00701 if (err) return err;
00702 }
00703 assert (self->var_computed[input_idx]);
00704 }
00705
00706 // call the thunk for this owner.
00707 if (self->thunk_cptr_fn[owner_idx])
00708 {
00709 err = c_call(self, owner_idx, verbose);
00710 if (err) goto fail;
00711 }
00712 else
00713 {
00714 rval = pycall(self, owner_idx, verbose);
00715 //rval is new ref
00716 if (rval) //pycall returned normally (no exception)
00717 {
00718 if (rval == Py_None)
00719 {
00720 Py_DECREF(rval); //ignore a return of None
00721 }
00722 else if (PyList_Check(rval))
00723 {
00724 PyErr_SetString(PyExc_TypeError,
00725 "non-lazy thunk should return None, not list");
00726 err = 1;
00727 goto pyfail;
00728 }
00729 else // don't know what it returned, but it wasn't right.
00730 {
00731 PyErr_SetObject(PyExc_TypeError, rval);
00732 err = 1;
00733 // We don't release rval since we put it in the error above
00734 goto fail;
00735 }
00736 }
00737 else // pycall returned NULL (internal error)
00738 {
00739 err = 1;
00740 goto fail;
00741 }
00742 }
00743 }
00744
00745 // loop over all outputs and mark them as computed
00746 for (int i = 0; i < self->node_n_outputs[owner_idx]; ++i)
00747 {
00748 self->var_computed[self->node_outputs[owner_idx][i]] = 1;
00749 }
00750
00751 // Free vars that are not needed anymore
00752 if (self->allow_gc)
00753 {
00754 for (int i = 0; i < self->node_n_inputs[owner_idx]; ++i)
00755 {
00756 int cleanup = 1;
00757 Py_ssize_t i_idx = self->node_inputs[owner_idx][i];
00758 if (!self->var_has_owner[i_idx])
00759 continue;
00760
00761 for (int j = 0; j < self->n_output_vars; ++j)
00762 {
00763 if (i_idx == self->output_vars[j])
00764 {
00765 cleanup = 0;
00766 break;
00767 }
00768 }
00769 if (!cleanup) continue;
00770
00771 for (int j = 0; j < self->n_dependencies[i_idx]; ++j)
00772 {
00773 if (!self->var_computed[self->dependencies[i_idx][j]])
00774 {
00775 cleanup = 0;
00776 break;
00777 }
00778 }
00779 if (!cleanup) continue;
00780
00781 Py_INCREF(Py_None);
00782 err = PyList_SetItem(self->var_value_cells[i_idx], 0, Py_None);
00783 //See the Stack gc implementation for why we change it to 2 and not 0.
00784 self->var_computed[i_idx] = 2;
00785 if (err) goto fail;
00786 }
00787 }
00788
00789 return 0;
00790 pyfail:
00791 Py_DECREF(rval);
00792 fail:
00793 set_position_of_error(self, owner_idx);
00794 return err;
00795 }
00796
00797 static PyObject *
00798 CLazyLinker_call(PyObject *_self, PyObject *args, PyObject *kwds)
00799 {
00800 CLazyLinker * self = (CLazyLinker*)_self;
00801 static char *kwlist[] = {
00802 (char*)"time_thunks",
00803 (char *)"n_calls",
00804 NULL};
00805 int n_calls=1;
00806 if (! PyArg_ParseTupleAndKeywords(args, kwds, "|ii", kwlist,
00807 &self->do_timing,
00808 &n_calls))
00809 return NULL;
00810 int err = 0;
00811 self->position_of_error = -1;
00812 // create constants used to fill the var_compute_cells
00813 PyObject * one = PyInt_FromLong(1);
00814 PyObject * zero = PyInt_FromLong(0);
00815
00816 // pre-allocate our return value
00817 Py_INCREF(Py_None);
00818 PyObject * rval = Py_None;
00819 //clear storage of pre_call_clear elements
00820 for (int call_i = 0; call_i < n_calls && (!err); ++call_i)
00821 {
00822 Py_ssize_t n_pre_call_clear = PyList_Size(self->pre_call_clear);
00823 assert(PyList_Check(self->pre_call_clear));
00824 for (int i = 0; i < n_pre_call_clear; ++i)
00825 {
00826 PyObject * el_i = PyList_GetItem(self->pre_call_clear, i);
00827 Py_INCREF(Py_None);
00828 PyList_SetItem(el_i, 0, Py_None);
00829 }
00830 //clear the computed flag out of all non-input vars
00831 for (int i = 0; i < self->n_vars; ++i)
00832 {
00833 self->var_computed[i] = !self->var_has_owner[i];
00834 if (self->var_computed[i])
00835 {
00836 Py_INCREF(one);
00837 PyList_SetItem(self->var_computed_cells[i], 0, one);
00838 }
00839 else
00840 {
00841 Py_INCREF(zero);
00842 PyList_SetItem(self->var_computed_cells[i], 0, zero);
00843 }
00844 }
00845
00846 for (int i = 0; i < self->n_output_vars && (!err); ++i)
00847 {
00848 err = lazy_rec_eval(self, self->output_vars[i], one, zero);
00849 }
00850
00851 if (!err)
00852 {
00853 // save references to outputs prior to updating storage containers
00854 assert (self->n_output_vars >= self->n_updates);
00855 Py_DECREF(rval);
00856 rval = PyList_New(self->n_output_vars);
00857 for (int i = 0; i < (self->n_output_vars); ++i)
00858 {
00859 Py_ssize_t src = self->output_vars[i];
00860 PyObject * item = PyList_GetItem(self->var_value_cells[src], 0);
00861 if (self->var_computed[src] != 1)
00862 {
00863 err = 1;
00864 PyErr_Format(PyExc_AssertionError,
00865 "The compute map of output %d should contain "
00866 "1 at the end of execution, not %d.",
00867 i, self->var_computed[src]);
00868 break;
00869 }
00870 Py_INCREF(item);
00871 PyList_SetItem(rval, i, item);
00872 }
00873 }
00874
00875 if (!err)
00876 {
00877 // Update the inputs that have an update rule
00878 for (int i = 0; i < self->n_updates; ++i)
00879 {
00880 PyObject* tmp = PyList_GetItem(rval, self->n_output_vars - self->n_updates + i);
00881 Py_INCREF(tmp);
00882 Py_ssize_t dst = self->update_storage[i];
00883 PyList_SetItem(self->var_value_cells[dst], 0, tmp);
00884 }
00885 }
00886 }
00887
00888 /*
00889 Clear everything that is left and not an output. This is needed
00890 for lazy evaluation since the current GC algo is too conservative
00891 with lazy graphs.
00892 */
00893 if (self->allow_gc && !err)
00894 {
00895 for (Py_ssize_t i = 0; i < self->n_vars; ++i)
00896 {
00897 int do_cleanup = 1;
00898 if (!self->var_has_owner[i] || !self->var_computed[i])
00899 continue;
00900 for (int j = 0; j < self->n_output_vars; ++j)
00901 {
00902 if (i == self->output_vars[j])
00903 {
00904 do_cleanup = 0;
00905 break;
00906 }
00907 }
00908 if (!do_cleanup)
00909 continue;
00910 Py_INCREF(Py_None);
00911 PyList_SetItem(self->var_value_cells[i], 0, Py_None);
00912 }
00913 }
00914 Py_DECREF(one);
00915 Py_DECREF(zero);
00916 if (err)
00917 {
00918 Py_DECREF(rval);
00919 return NULL;
00920 }
00921 return rval;
00922 }
00923
00924 #if 0
00925 static PyMethodDef CLazyLinker_methods[] = {
00926 {
00927 //"name", (PyCFunction)CLazyLinker_accept, METH_VARARGS, "Return the name, combining the first and last name"
00928 },
00929 {NULL} /* Sentinel */
00930 };
00931 #endif
00932
00933 static PyMemberDef CLazyLinker_members[] = {
00934 {(char*)"nodes", T_OBJECT_EX, offsetof(CLazyLinker, nodes), 0,
00935 (char*)"list of nodes"},
00936 {(char*)"thunks", T_OBJECT_EX, offsetof(CLazyLinker, thunks), 0,
00937 (char*)"list of thunks in program"},
00938 {(char*)"call_counts", T_OBJECT_EX, offsetof(CLazyLinker, call_counts), 0,
00939 (char*)"number of calls of each thunk"},
00940 {(char*)"call_times", T_OBJECT_EX, offsetof(CLazyLinker, call_times), 0,
00941 (char*)"total runtime in each thunk"},
00942 {(char*)"position_of_error", T_INT, offsetof(CLazyLinker, position_of_error), 0,
00943 (char*)"position of failed thunk"},
00944 {(char*)"time_thunks", T_INT, offsetof(CLazyLinker, do_timing), 0,
00945 (char*)"bool: nonzero means call will time thunks"},
00946 {(char*)"need_update_inputs", T_INT, offsetof(CLazyLinker, need_update_inputs), 0,
00947 (char*)"bool: nonzero means Function.__call__ must implement update mechanism"},
00948 {NULL} /* Sentinel */
00949 };
00950
00951 static PyTypeObject lazylinker_ext_CLazyLinkerType = {
00952 #if defined(NPY_PY3K)
00953 PyVarObject_HEAD_INIT(NULL, 0)
00954 #else
00955 PyObject_HEAD_INIT(NULL)
00956 0, /*ob_size*/
00957 #endif
00958 "lazylinker_ext.CLazyLinker", /*tp_name*/
00959 sizeof(CLazyLinker), /*tp_basicsize*/
00960 0, /*tp_itemsize*/
00961 CLazyLinker_dealloc, /*tp_dealloc*/
00962 0, /*tp_print*/
00963 0, /*tp_getattr*/
00964 0, /*tp_setattr*/
00965 0, /*tp_compare*/
00966 0, /*tp_repr*/
00967 0, /*tp_as_number*/
00968 0, /*tp_as_sequence*/
00969 0, /*tp_as_mapping*/
00970 0, /*tp_hash */
00971 CLazyLinker_call, /*tp_call*/
00972 0, /*tp_str*/
00973 0, /*tp_getattro*/
00974 0, /*tp_setattro*/
00975 0, /*tp_as_buffer*/
00976 Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE, /*tp_flags*/
00977 "CLazyLinker object", /* tp_doc */
00978 0, /* tp_traverse */
00979 0, /* tp_clear */
00980 0, /* tp_richcompare */
00981 0, /* tp_weaklistoffset */
00982 0, /* tp_iter */
00983 0, /* tp_iternext */
00984 0,//CLazyLinker_methods, /* tp_methods */
00985 CLazyLinker_members, /* tp_members */
00986 0, /* tp_getset */
00987 0, /* tp_base */
00988 0, /* tp_dict */
00989 0, /* tp_descr_get */
00990 0, /* tp_descr_set */
00991 0, /* tp_dictoffset */
00992 (initproc)CLazyLinker_init,/* tp_init */
00993 0, /* tp_alloc */
00994 CLazyLinker_new, /* tp_new */
00995 };
00996 ===============================
===============================
C:\Users\Ziyuan\AppData\Local\Temp\ccOrLQEb.o: In function `_import_array':
C:/Python34/lib/site-packages/numpy/core/include/numpy/__multiarray_api.h:1636: undefined reference to `__imp_PyExc_ImportError'
C:/Python34/lib/site-packages/numpy/core/include/numpy/__multiarray_api.h:1642: undefined reference to `__imp_PyExc_AttributeError'
C:/Python34/lib/site-packages/numpy/core/include/numpy/__multiarray_api.h:1647: undefined reference to `__imp_PyCapsule_Type'
C:/Python34/lib/site-packages/numpy/core/include/numpy/__multiarray_api.h:1648: undefined reference to `__imp_PyExc_RuntimeError'
C:/Python34/lib/site-packages/numpy/core/include/numpy/__multiarray_api.h:1663: undefined reference to `__imp_PyExc_RuntimeError'
C:/Python34/lib/site-packages/numpy/core/include/numpy/__multiarray_api.h:1671: undefined reference to `__imp_PyExc_RuntimeError'
C:/Python34/lib/site-packages/numpy/core/include/numpy/__multiarray_api.h:1677: undefined reference to `__imp_PyExc_RuntimeError'
C:/Python34/lib/site-packages/numpy/core/include/numpy/__multiarray_api.h:1687: undefined reference to `__imp_PyExc_RuntimeError'
C:\Users\Ziyuan\AppData\Local\Temp\ccOrLQEb.o:C:/Python34/lib/site-packages/numpy/core/include/numpy/__multiarray_api.h:1699: more undefined references to `__imp_PyExc_RuntimeError' follow
C:\Users\Ziyuan\AppData\Local\Temp\ccOrLQEb.o: In function `NpyCapsule_Check':
C:/Python34/lib/site-packages/numpy/core/include/numpy/npy_3kcompat.h:435: undefined reference to `__imp_PyCapsule_Type'
C:\Users\Ziyuan\AppData\Local\Temp\ccOrLQEb.o: In function `unpack_list_of_ssize_t':
C:/Users/Ziyuan/AppData/Local/Theano/compiledir_Windows-7-6.1.7601-SP1-Intel64_Family_6_Model_58_Stepping_9_GenuineIntel-3.4.1-64/lazylinker_ext/mod.cpp:58: undefined reference to `__imp_PyExc_TypeError'
C:/Users/Ziyuan/AppData/Local/Theano/compiledir_Windows-7-6.1.7601-SP1-Intel64_Family_6_Model_58_Stepping_9_GenuineIntel-3.4.1-64/lazylinker_ext/mod.cpp:68: undefined reference to `__imp_PyExc_IndexError'
C:\Users\Ziyuan\AppData\Local\Temp\ccOrLQEb.o: In function `CLazyLinker_init':
C:/Users/Ziyuan/AppData/Local/Theano/compiledir_Windows-7-6.1.7601-SP1-Intel64_Family_6_Model_58_Stepping_9_GenuineIntel-3.4.1-64/lazylinker_ext/mod.cpp:362: undefined reference to `__imp_PyExc_IndexError'
C:/Users/Ziyuan/AppData/Local/Theano/compiledir_Windows-7-6.1.7601-SP1-Intel64_Family_6_Model_58_Stepping_9_GenuineIntel-3.4.1-64/lazylinker_ext/mod.cpp:380: undefined reference to `__imp_PyExc_IndexError'
C:/Users/Ziyuan/AppData/Local/Theano/compiledir_Windows-7-6.1.7601-SP1-Intel64_Family_6_Model_58_Stepping_9_GenuineIntel-3.4.1-64/lazylinker_ext/mod.cpp:395: undefined reference to `__imp_PyExc_IndexError'
C:/Users/Ziyuan/AppData/Local/Theano/compiledir_Windows-7-6.1.7601-SP1-Intel64_Family_6_Model_58_Stepping_9_GenuineIntel-3.4.1-64/lazylinker_ext/mod.cpp:399: undefined reference to `__imp_PyExc_IndexError'
C:\Users\Ziyuan\AppData\Local\Temp\ccOrLQEb.o:C:/Users/Ziyuan/AppData/Local/Theano/compiledir_Windows-7-6.1.7601-SP1-Intel64_Family_6_Model_58_Stepping_9_GenuineIntel-3.4.1-64/lazylinker_ext/mod.cpp:403: more undefined references to `__imp_PyExc_IndexError' follow
C:\Users\Ziyuan\AppData\Local\Temp\ccOrLQEb.o: In function `CLazyLinker_init':
C:/Users/Ziyuan/AppData/Local/Theano/compiledir_Windows-7-6.1.7601-SP1-Intel64_Family_6_Model_58_Stepping_9_GenuineIntel-3.4.1-64/lazylinker_ext/mod.cpp:415: undefined reference to `__imp_PyExc_TypeError'
C:/Users/Ziyuan/AppData/Local/Theano/compiledir_Windows-7-6.1.7601-SP1-Intel64_Family_6_Model_58_Stepping_9_GenuineIntel-3.4.1-64/lazylinker_ext/mod.cpp:430: undefined reference to `__imp__Py_NoneStruct'
C:/Users/Ziyuan/AppData/Local/Theano/compiledir_Windows-7-6.1.7601-SP1-Intel64_Family_6_Model_58_Stepping_9_GenuineIntel-3.4.1-64/lazylinker_ext/mod.cpp:436: undefined reference to `__imp_PyExc_IndexError'
C:/Users/Ziyuan/AppData/Local/Theano/compiledir_Windows-7-6.1.7601-SP1-Intel64_Family_6_Model_58_Stepping_9_GenuineIntel-3.4.1-64/lazylinker_ext/mod.cpp:454: undefined reference to `__imp__Py_NoneStruct'
C:/Users/Ziyuan/AppData/Local/Theano/compiledir_Windows-7-6.1.7601-SP1-Intel64_Family_6_Model_58_Stepping_9_GenuineIntel-3.4.1-64/lazylinker_ext/mod.cpp:450: undefined reference to `__imp_PyExc_TypeError'
C:\Users\Ziyuan\AppData\Local\Temp\ccOrLQEb.o: In function `c_call':
C:/Users/Ziyuan/AppData/Local/Theano/compiledir_Windows-7-6.1.7601-SP1-Intel64_Family_6_Model_58_Stepping_9_GenuineIntel-3.4.1-64/lazylinker_ext/mod.cpp:555: undefined reference to `__imp__Py_NoneStruct'
C:/Users/Ziyuan/AppData/Local/Theano/compiledir_Windows-7-6.1.7601-SP1-Intel64_Family_6_Model_58_Stepping_9_GenuineIntel-3.4.1-64/lazylinker_ext/mod.cpp:555: undefined reference to `__imp__Py_NoneStruct'
C:/Users/Ziyuan/AppData/Local/Theano/compiledir_Windows-7-6.1.7601-SP1-Intel64_Family_6_Model_58_Stepping_9_GenuineIntel-3.4.1-64/lazylinker_ext/mod.cpp:555: undefined reference to `__imp__Py_NoneStruct'
C:/Users/Ziyuan/AppData/Local/Theano/compiledir_Windows-7-6.1.7601-SP1-Intel64_Family_6_Model_58_Stepping_9_GenuineIntel-3.4.1-64/lazylinker_ext/mod.cpp:556: undefined reference to `__imp__Py_NoneStruct'
C:/Users/Ziyuan/AppData/Local/Theano/compiledir_Windows-7-6.1.7601-SP1-Intel64_Family_6_Model_58_Stepping_9_GenuineIntel-3.4.1-64/lazylinker_ext/mod.cpp:556: undefined reference to `__imp__Py_NoneStruct'
C:\Users\Ziyuan\AppData\Local\Temp\ccOrLQEb.o:C:/Users/Ziyuan/AppData/Local/Theano/compiledir_Windows-7-6.1.7601-SP1-Intel64_Family_6_Model_58_Stepping_9_GenuineIntel-3.4.1-64/lazylinker_ext/mod.cpp:556: more undefined references to `__imp__Py_NoneStruct' follow
C:\Users\Ziyuan\AppData\Local\Temp\ccOrLQEb.o: In function `lazy_rec_eval':
C:/Users/Ziyuan/AppData/Local/Theano/compiledir_Windows-7-6.1.7601-SP1-Intel64_Family_6_Model_58_Stepping_9_GenuineIntel-3.4.1-64/lazylinker_ext/mod.cpp:628: undefined reference to `__imp_PyExc_IndexError'
C:/Users/Ziyuan/AppData/Local/Theano/compiledir_Windows-7-6.1.7601-SP1-Intel64_Family_6_Model_58_Stepping_9_GenuineIntel-3.4.1-64/lazylinker_ext/mod.cpp:651: undefined reference to `__imp_PyExc_TypeError'
C:/Users/Ziyuan/AppData/Local/Theano/compiledir_Windows-7-6.1.7601-SP1-Intel64_Family_6_Model_58_Stepping_9_GenuineIntel-3.4.1-64/lazylinker_ext/mod.cpp:659: undefined reference to `__imp_PyExc_ValueError'
C:/Users/Ziyuan/AppData/Local/Theano/compiledir_Windows-7-6.1.7601-SP1-Intel64_Family_6_Model_58_Stepping_9_GenuineIntel-3.4.1-64/lazylinker_ext/mod.cpp:667: undefined reference to `__imp_PyExc_IndexError'
C:/Users/Ziyuan/AppData/Local/Theano/compiledir_Windows-7-6.1.7601-SP1-Intel64_Family_6_Model_58_Stepping_9_GenuineIntel-3.4.1-64/lazylinker_ext/mod.cpp:718: undefined reference to `__imp__Py_NoneStruct'
C:/Users/Ziyuan/AppData/Local/Theano/compiledir_Windows-7-6.1.7601-SP1-Intel64_Family_6_Model_58_Stepping_9_GenuineIntel-3.4.1-64/lazylinker_ext/mod.cpp:725: undefined reference to `__imp_PyExc_TypeError'
C:/Users/Ziyuan/AppData/Local/Theano/compiledir_Windows-7-6.1.7601-SP1-Intel64_Family_6_Model_58_Stepping_9_GenuineIntel-3.4.1-64/lazylinker_ext/mod.cpp:731: undefined reference to `__imp_PyExc_TypeError'
C:/Users/Ziyuan/AppData/Local/Theano/compiledir_Windows-7-6.1.7601-SP1-Intel64_Family_6_Model_58_Stepping_9_GenuineIntel-3.4.1-64/lazylinker_ext/mod.cpp:781: undefined reference to `__imp__Py_NoneStruct'
C:/Users/Ziyuan/AppData/Local/Theano/compiledir_Windows-7-6.1.7601-SP1-Intel64_Family_6_Model_58_Stepping_9_GenuineIntel-3.4.1-64/lazylinker_ext/mod.cpp:781: undefined reference to `__imp__Py_NoneStruct'
C:/Users/Ziyuan/AppData/Local/Theano/compiledir_Windows-7-6.1.7601-SP1-Intel64_Family_6_Model_58_Stepping_9_GenuineIntel-3.4.1-64/lazylinker_ext/mod.cpp:782: undefined reference to `__imp__Py_NoneStruct'
C:\Users\Ziyuan\AppData\Local\Temp\ccOrLQEb.o: In function `CLazyLinker_call':
C:/Users/Ziyuan/AppData/Local/Theano/compiledir_Windows-7-6.1.7601-SP1-Intel64_Family_6_Model_58_Stepping_9_GenuineIntel-3.4.1-64/lazylinker_ext/mod.cpp:817: undefined reference to `__imp__Py_NoneStruct'
C:/Users/Ziyuan/AppData/Local/Theano/compiledir_Windows-7-6.1.7601-SP1-Intel64_Family_6_Model_58_Stepping_9_GenuineIntel-3.4.1-64/lazylinker_ext/mod.cpp:817: undefined reference to `__imp__Py_NoneStruct'
C:\Users\Ziyuan\AppData\Local\Temp\ccOrLQEb.o:C:/Users/Ziyuan/AppData/Local/Theano/compiledir_Windows-7-6.1.7601-SP1-Intel64_Family_6_Model_58_Stepping_9_GenuineIntel-3.4.1-64/lazylinker_ext/mod.cpp:818: more undefined references to `__imp__Py_NoneStruct' follow
C:\Users\Ziyuan\AppData\Local\Temp\ccOrLQEb.o: In function `CLazyLinker_call':
C:/Users/Ziyuan/AppData/Local/Theano/compiledir_Windows-7-6.1.7601-SP1-Intel64_Family_6_Model_58_Stepping_9_GenuineIntel-3.4.1-64/lazylinker_ext/mod.cpp:867: undefined reference to `__imp_PyExc_AssertionError'
C:/Users/Ziyuan/AppData/Local/Theano/compiledir_Windows-7-6.1.7601-SP1-Intel64_Family_6_Model_58_Stepping_9_GenuineIntel-3.4.1-64/lazylinker_ext/mod.cpp:910: undefined reference to `__imp__Py_NoneStruct'
C:/Users/Ziyuan/AppData/Local/Theano/compiledir_Windows-7-6.1.7601-SP1-Intel64_Family_6_Model_58_Stepping_9_GenuineIntel-3.4.1-64/lazylinker_ext/mod.cpp:910: undefined reference to `__imp__Py_NoneStruct'
C:/Users/Ziyuan/AppData/Local/Theano/compiledir_Windows-7-6.1.7601-SP1-Intel64_Family_6_Model_58_Stepping_9_GenuineIntel-3.4.1-64/lazylinker_ext/mod.cpp:911: undefined reference to `__imp__Py_NoneStruct'
collect2.exe: error: ld returned 1 exit status
00997 static PyObject * get_version(PyObject *dummy, PyObject *args)
00998 {
00999 PyObject *result = PyFloat_FromDouble(0.20);
01000 return result;
01001 }
01002
01003 static PyMethodDef lazylinker_ext_methods[] = {
01004 {"get_version", get_version, METH_VARARGS, "Get extension version."},
01005 {NULL, NULL, 0, NULL} /* Sentinel */
01006 };
01007
01008 #ifndef PyMODINIT_FUNC /* declarations for DLL import/export */
01009 #define PyMODINIT_FUNC void
01010 #endif
01011
01012 #if defined(NPY_PY3K)
01013 static struct PyModuleDef moduledef = {
01014 PyModuleDef_HEAD_INIT,
01015 "lazylinker_ext",
01016 NULL,
01017 -1,
01018 lazylinker_ext_methods,
01019 NULL,
01020 NULL,
01021 NULL,
01022 NULL
01023 };
01024 #endif
01025 #if defined(NPY_PY3K)
01026 #define RETVAL m
01027 PyMODINIT_FUNC
01028 PyInit_lazylinker_ext(void) {
01029 #else
01030 #define RETVAL
01031 PyMODINIT_FUNC
01032 initlazylinker_ext(void)
01033 {
01034 #endif
01035 PyObject* m;
01036
01037 lazylinker_ext_CLazyLinkerType.tp_new = PyType_GenericNew;
01038 if (PyType_Ready(&lazylinker_ext_CLazyLinkerType) < 0)
01039 return RETVAL;
01040 #if defined(NPY_PY3K)
01041 m = PyModule_Create(&moduledef);
01042 #else
01043 m = Py_InitModule3("lazylinker_ext", lazylinker_ext_methods,
01044 "Example module that creates an extension type.");
01045 #endif
01046 Py_INCREF(&lazylinker_ext_CLazyLinkerType);
01047 PyModule_AddObject(m, "CLazyLinker", (PyObject *)&lazylinker_ext_CLazyLinkerType);
01048
01049 return RETVAL;
01050 }
01051
01052
Problem occurred during compilation with the command line below:
g++ -shared -g -march=corei7-avx -mcx16 -msahf -mno-movbe -maes -mpclmul -mpopcnt -mno-abm -mno-lwp -mno-fma -mno-fma4 -mno-xop -mno-bmi -mno-bmi2 -mno-tbm -mavx -mno-avx2 -msse4.2 -msse4.1 -mno-lzcnt -mno-rtm -mno-hle -mrdrnd -mf16c -mfsgsbase -mno-rdseed -mno-prfchw -mno-adx -mfxsr -mxsave -mxsaveopt --param l1-cache-size=0 --param l1-cache-line-size=0 --param l2-cache-size=256 -mtune=generic -D NPY_NO_DEPRECATED_API=NPY_1_7_API_VERSION -m64 -DMS_WIN64 -IC:\Python34\lib\site-packages\numpy\core\include -IC:\Python34\include -o C:\Users\Ziyuan\AppData\Local\Theano\compiledir_Windows-7-6.1.7601-SP1-Intel64_Family_6_Model_58_Stepping_9_GenuineIntel-3.4.1-64\lazylinker_ext\lazylinker_ext.pyd C:\Users\Ziyuan\AppData\Local\Theano\compiledir_Windows-7-6.1.7601-SP1-Intel64_Family_6_Model_58_Stepping_9_GenuineIntel-3.4.1-64\lazylinker_ext\mod.cpp -LC:\Python34\libs -LC:\Python34 -lpython34
Traceback (most recent call last):
File "C:\Python34\lib\site-packages\theano\gof\lazylinker_c.py", line 59, in <module>
raise ImportError()
ImportError
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "C:\Python34\lib\site-packages\theano\gof\lazylinker_c.py", line 76, in <module>
raise ImportError()
ImportError
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "<string>", line 1, in <module>
File "C:\Python34\lib\site-packages\theano\__init__.py", line 55, in <module>
from theano.compile import \
File "C:\Python34\lib\site-packages\theano\compile\__init__.py", line 9, in <module>
from theano.compile.function_module import *
File "C:\Python34\lib\site-packages\theano\compile\function_module.py", line 18, in <module>
import theano.compile.mode
File "C:\Python34\lib\site-packages\theano\compile\mode.py", line 11, in <module>
import theano.gof.vm
File "C:\Python34\lib\site-packages\theano\gof\vm.py", line 560, in <module>
from . import lazylinker_c
File "C:\Python34\lib\site-packages\theano\gof\lazylinker_c.py", line 92, in <module>
preargs=args)
File "C:\Python34\lib\site-packages\theano\gof\cmodule.py", line 1985, in compile_str
(status, compile_stderr.replace('\n', '. ')))
Exception: Compilation failed (return status=1): C:\Users\Ziyuan\AppData\Local\Temp\ccOrLQEb.o: In function `_import_array':
. C:/Python34/lib/site-packages/numpy/core/include/numpy/__multiarray_api.h:1636: undefined reference to `__imp_PyExc_ImportError'
. C:/Python34/lib/site-packages/numpy/core/include/numpy/__multiarray_api.h:1642: undefined reference to `__imp_PyExc_AttributeError'
. C:/Python34/lib/site-packages/numpy/core/include/numpy/__multiarray_api.h:1647: undefined reference to `__imp_PyCapsule_Type'
. C:/Python34/lib/site-packages/numpy/core/include/numpy/__multiarray_api.h:1648: undefined reference to `__imp_PyExc_RuntimeError'
. C:/Python34/lib/site-packages/numpy/core/include/numpy/__multiarray_api.h:1663: undefined reference to `__imp_PyExc_RuntimeError'
. C:/Python34/lib/site-packages/numpy/core/include/numpy/__multiarray_api.h:1671: undefined reference to `__imp_PyExc_RuntimeError'
. C:/Python34/lib/site-packages/numpy/core/include/numpy/__multiarray_api.h:1677: undefined reference to `__imp_PyExc_RuntimeError'
. C:/Python34/lib/site-packages/numpy/core/include/numpy/__multiarray_api.h:1687: undefined reference to `__imp_PyExc_RuntimeError'
. C:\Users\Ziyuan\AppData\Local\Temp\ccOrLQEb.o:C:/Python34/lib/site-packages/numpy/core/include/numpy/__multiarray_api.h:1699: more undefined references to `__imp_PyExc_RuntimeError' follow
. C:\Users\Ziyuan\AppData\Local\Temp\ccOrLQEb.o: In function `NpyCapsule_Check':
. C:/Python34/lib/site-packages/numpy/core/include/numpy/npy_3kcompat.h:435: undefined reference to `__imp_PyCapsule_Type'
. C:\Users\Ziyuan\AppData\Local\Temp\ccOrLQEb.o: In function `unpack_list_of_ssize_t':
. C:/Users/Ziyuan/AppData/Local/Theano/compiledir_Windows-7-6.1.7601-SP1-Intel64_Family_6_Model_58_Stepping_9_GenuineIntel-3.4.1-64/lazylinker_ext/mod.cpp:58: undefined reference to `__imp_PyExc_TypeError'
. C:/Users/Ziyuan/AppData/Local/Theano/compiledir_Windows-7-6.1.7601-SP1-Intel64_Family_6_Model_58_Stepping_9_GenuineIntel-3.4.1-64/lazylinker_ext/mod.cpp:68: undefined reference to `__imp_PyExc_IndexError'
. C:\Users\Ziyuan\AppData\Local\Temp\ccOrLQEb.o: In function `CLazyLinker_init':
. C:/Users/Ziyuan/AppData/Local/Theano/compiledir_Windows-7-6.1.7601-SP1-Intel64_Family_6_Model_58_Stepping_9_GenuineIntel-3.4.1-64/lazylinker_ext/mod.cpp:362: undefined reference to `__imp_PyExc_IndexError'
. C:/Users/Ziyuan/AppData/Local/Theano/compiledir_Windows-7-6.1.7601-SP1-Intel64_Family_6_Model_58_Stepping_9_GenuineIntel-3.4.1-64/lazylinker_ext/mod.cpp:380: undefined reference to `__imp_PyExc_IndexError'
. C:/Users/Ziyuan/AppData/Local/Theano/compiledir_Windows-7-6.1.7601-SP1-Intel64_Family_6_Model_58_Stepping_9_GenuineIntel-3.4.1-64/lazylinker_ext/mod.cpp:395: undefined reference to `__imp_PyExc_IndexError'
. C:/Users/Ziyuan/AppData/Local/Theano/compiledir_Windows-7-6.1.7601-SP1-Intel64_Family_6_Model_58_Stepping_9_GenuineIntel-3.4.1-64/lazylinker_ext/mod.cpp:399: undefined reference to `__imp_PyExc_IndexError'
. C:\Users\Ziyuan\AppData\Local\Temp\ccOrLQEb.o:C:/Users/Ziyuan/AppData/Local/Theano/compiledir_Windows-7-6.1.7601-SP1-Intel64_Family_6_Model_58_Stepping_9_GenuineIntel-3.4.1-64/lazylinker_ext/mod.cpp:403: more undefined references to `__imp_PyExc_IndexError' follow
. C:\Users\Ziyuan\AppData\Local\Temp\ccOrLQEb.o: In function `CLazyLinker_init':
. C:/Users/Ziyuan/AppData/Local/Theano/compiledir_Windows-7-6.1.7601-SP1-Intel64_Family_6_Model_58_Stepping_9_GenuineIntel-3.4.1-64/lazylinker_ext/mod.cpp:415: undefined reference to `__imp_PyExc_TypeError'
. C:/Users/Ziyuan/AppData/Local/Theano/compiledir_Windows-7-6.1.7601-SP1-Intel64_Family_6_Model_58_Stepping_9_GenuineIntel-3.4.1-64/lazylinker_ext/mod.cpp:430: undefined reference to `__imp__Py_NoneStruct'
. C:/Users/Ziyuan/AppData/Local/Theano/compiledir_Windows-7-6.1.7601-SP1-Intel64_Family_6_Model_58_Stepping_9_GenuineIntel-3.4.1-64/lazylinker_ext/mod.cpp:436: undefined reference to `__imp_PyExc_IndexError'
. C:/Users/Ziyuan/AppData/Local/Theano/compiledir_Windows-7-6.1.7601-SP1-Intel64_Family_6_Model_58_Stepping_9_GenuineIntel-3.4.1-64/lazylinker_ext/mod.cpp:454: undefined reference to `__imp__Py_NoneStruct'
. C:/Users/Ziyuan/AppData/Local/Theano/compiledir_Windows-7-6.1.7601-SP1-Intel64_Family_6_Model_58_Stepping_9_GenuineIntel-3.4.1-64/lazylinker_ext/mod.cpp:450: undefined reference to `__imp_PyExc_TypeError'
. C:\Users\Ziyuan\AppData\Local\Temp\ccOrLQEb.o: In function `c_call':
. C:/Users/Ziyuan/AppData/Local/Theano/compiledir_Windows-7-6.1.7601-SP1-Intel64_Family_6_Model_58_Stepping_9_GenuineIntel-3.4.1-64/lazylinker_ext/mod.cpp:555: undefined reference to `__imp__Py_NoneStruct'
. C:/Users/Ziyuan/AppData/Local/Theano/compiledir_Windows-7-6.1.7601-SP1-Intel64_Family_6_Model_58_Stepping_9_GenuineIntel-3.4.1-64/lazylinker_ext/mod.cpp:555: undefined reference to `__imp__Py_NoneStruct'
. C:/Users/Ziyuan/AppData/Local/Theano/compiledir_Windows-7-6.1.7601-SP1-Intel64_Family_6_Model_58_Stepping_9_GenuineIntel-3.4.1-64/lazylinker_ext/mod.cpp:555: undefined reference to `__imp__Py_NoneStruct'
. C:/Users/Ziyuan/AppData/Local/Theano/compiledir_Windows-7-6.1.7601-SP1-Intel64_Family_6_Model_58_Stepping_9_GenuineIntel-3.4.1-64/lazylinker_ext/mod.cpp:556: undefined reference to `__imp__Py_NoneStruct'
. C:/Users/Ziyuan/AppData/Local/Theano/compiledir_Windows-7-6.1.7601-SP1-Intel64_Family_6_Model_58_Stepping_9_GenuineIntel-3.4.1-64/lazylinker_ext/mod.cpp:556: undefined reference to `__imp__Py_NoneStruct'
. C:\Users\Ziyuan\AppData\Local\Temp\ccOrLQEb.o:C:/Users/Ziyuan/AppData/Local/Theano/compiledir_Windows-7-6.1.7601-SP1-Intel64_Family_6_Model_58_Stepping_9_GenuineIntel-3.4.1-64/lazylinker_ext/mod.cpp:556: more undefined references to `__imp__Py_NoneStruct' follow
. C:\Users\Ziyuan\AppData\Local\Temp\ccOrLQEb.o: In function `lazy_rec_eval':
. C:/Users/Ziyuan/AppData/Local/Theano/compiledir_Windows-7-6.1.7601-SP1-Intel64_Family_6_Model_58_Stepping_9_GenuineIntel-3.4.1-64/lazylinker_ext/mod.cpp:628: undefined reference to `__imp_PyExc_IndexError'
. C:/Users/Ziyuan/AppData/Local/Theano/compiledir_Windows-7-6.1.7601-SP1-Intel64_Family_6_Model_58_Stepping_9_GenuineIntel-3.4.1-64/lazylinker_ext/mod.cpp:651: undefined reference to `__imp_PyExc_TypeError'
. C:/Users/Ziyuan/AppData/Local/Theano/compiledir_Windows-7-6.1.7601-SP1-Intel64_Family_6_Model_58_Stepping_9_GenuineIntel-3.4.1-64/lazylinker_ext/mod.cpp:659: undefined reference to `__imp_PyExc_ValueError'
. C:/Users/Ziyuan/AppData/Local/Theano/compiledir_Windows-7-6.1.7601-SP1-Intel64_Family_6_Model_58_Stepping_9_GenuineIntel-3.4.1-64/lazylinker_ext/mod.cpp:667: undefined reference to `__imp_PyExc_IndexError'
. C:/Users/Ziyuan/AppData/Local/Theano/compiledir_Windows-7-6.1.7601-SP1-Intel64_Family_6_Model_58_Stepping_9_GenuineIntel-3.4.1-64/lazylinker_ext/mod.cpp:718: undefined reference to `__imp__Py_NoneStruct'
. C:/Users/Ziyuan/AppData/Local/Theano/compiledir_Windows-7-6.1.7601-SP1-Intel64_Family_6_Model_58_Stepping_9_GenuineIntel-3.4.1-64/lazylinker_ext/mod.cpp:725: undefined reference to `__imp_PyExc_TypeError'
. C:/Users/Ziyuan/AppData/Local/Theano/compiledir_Windows-7-6.1.7601-SP1-Intel64_Family_6_Model_58_Stepping_9_GenuineIntel-3.4.1-64/lazylinker_ext/mod.cpp:731: undefined reference to `__imp_PyExc_TypeError'
. C:/Users/Ziyuan/AppData/Local/Theano/compiledir_Windows-7-6.1.7601-SP1-Intel64_Family_6_Model_58_Stepping_9_GenuineIntel-3.4.1-64/lazylinker_ext/mod.cpp:781: undefined reference to `__imp__Py_NoneStruct'
. C:/Users/Ziyuan/AppData/Local/Theano/compiledir_Windows-7-6.1.7601-SP1-Intel64_Family_6_Model_58_Stepping_9_GenuineIntel-3.4.1-64/lazylinker_ext/mod.cpp:781: undefined reference to `__imp__Py_NoneStruct'
. C:/Users/Ziyuan/AppData/Local/Theano/compiledir_Windows-7-6.1.7601-SP1-Intel64_Family_6_Model_58_Stepping_9_GenuineIntel-3.4.1-64/lazylinker_ext/mod.cpp:782: undefined reference to `__imp__Py_NoneStruct'
. C:\Users\Ziyuan\AppData\Local\Temp\ccOrLQEb.o: In function `CLazyLinker_call':
. C:/Users/Ziyuan/AppData/Local/Theano/compiledir_Windows-7-6.1.7601-SP1-Intel64_Family_6_Model_58_Stepping_9_GenuineIntel-3.4.1-64/lazylinker_ext/mod.cpp:817: undefined reference to `__imp__Py_NoneStruct'
. C:/Users/Ziyuan/AppData/Local/Theano/compiledir_Windows-7-6.1.7601-SP1-Intel64_Family_6_Model_58_Stepping_9_GenuineIntel-3.4.1-64/lazylinker_ext/mod.cpp:817: undefined reference to `__imp__Py_NoneStruct'
. C:\Users\Ziyuan\AppData\Local\Temp\ccOrLQEb.o:C:/Users/Ziyuan/AppData/Local/Theano/compiledir_Windows-7-6.1.7601-SP1-Intel64_Family_6_Model_58_Stepping_9_GenuineIntel-3.4.1-64/lazylinker_ext/mod.cpp:818: more undefined references to `__imp__Py_NoneStruct' follow
. C:\Users\Ziyuan\AppData\Local\Temp\ccOrLQEb.o: In function `CLazyLinker_call':
. C:/Users/Ziyuan/AppData/Local/Theano/compiledir_Windows-7-6.1.7601-SP1-Intel64_Family_6_Model_58_Stepping_9_GenuineIntel-3.4.1-64/lazylinker_ext/mod.cpp:867: undefined reference to `__imp_PyExc_AssertionError'
. C:/Users/Ziyuan/AppData/Local/Theano/compiledir_Windows-7-6.1.7601-SP1-Intel64_Family_6_Model_58_Stepping_9_GenuineIntel-3.4.1-64/lazylinker_ext/mod.cpp:910: undefined reference to `__imp__Py_NoneStruct'
. C:/Users/Ziyuan/AppData/Local/Theano/compiledir_Windows-7-6.1.7601-SP1-Intel64_Family_6_Model_58_Stepping_9_GenuineIntel-3.4.1-64/lazylinker_ext/mod.cpp:910: undefined reference to `__imp__Py_NoneStruct'
. C:/Users/Ziyuan/AppData/Local/Theano/compiledir_Windows-7-6.1.7601-SP1-Intel64_Family_6_Model_58_Stepping_9_GenuineIntel-3.4.1-64/lazylinker_ext/mod.cpp:911: undefined reference to `__imp__Py_NoneStruct'
. collect2.exe: error: ld returned 1 exit status
.
ziyuang
All 20 comments
You are using Python 3, how did you install Theano? I think there is an additional step to convert python 2 style syntax to python 3.
The error itself seems to indicate a problem at link time, to link with the Python DLL. Do you have such a DLL in C:\Python34\libs or C:\Python34?
lamblin
on 5 Sep 2014
I installed Theano via pip install git+git://github.com/Theano/Theano. The 2to3 step is automatic. I have a python34.dll (of x64) in C:\Windows\System32.
ziyuang
on 5 Sep 2014
I looked into my python34.dll, the names there are like _Py_NoneStruct or PyExc_IndexError, instead of __imp__Py_NoneStruct or __imp_PyExc_IndexError as in the error messages.
ziyuang
on 5 Sep 2014
The compilation line looks for python34.dll in C:\Python34\libs or C:\Python34, not in C:\Windows\System32. Do you have a python34.dll, or python34.a, there?
If you don't, and want to use C:\Windows\System32\python34.dll, can you try to add -LC:\Windows\System32 to the cxxflags config flag in the gcc section? For instance, add the following to your theanorc.txt file (in your home):
[gcc]
cxxflags = -LC:\Windows\System32
I did copy python34.dll to C:\Python34 and C:\Python34\libs but the output was the same except for the random strings. I also think that C:\Windows\System32 is within the search path list by default: ref.
ziyuang
on 5 Sep 2014
That's strange. Is there a python34.a or python34.dll.a in the search path as well?
lamblin
on 6 Sep 2014
There is a python34.lib at C:\Python34\libs, roughly the same thing as the *.a file.
ziyuang
on 6 Sep 2014
Just a small comment, but to link with a library you need the import library (that is a .lib) and this is the library that should have the __imp_ symbols.
That means the path you pass to -L is the path to the import (.lib) library. After that, the program needs to find the .dll at runtime and C:\Windows\System32 is in the default search path for dlls.
So the setup is fine from this regard and there is no need to copy python34.dll around. The problem comes from the fact that we use g++ on windows. It need a preprocessed version of python34.lib (which is usually called libpython34.a, showing unix roots). I would suppose that such a file was not with your python distribution.
So you would have to convert the .lib into a .a with a command like this:
reimp -d python34.lib
dlltool -k -d python34.def -l libpython34.a
And then place the resulting libpython34.a in C:\Python34\libs.
abergeron
on 8 Sep 2014
Doesn't solve. Output.
ziyuang
on 8 Sep 2014
What was the output of the reimp and dlltool commands? Did they work? Does the resulting libpython34.a file have the __imp_ symbols?
Also, it is possible, but unlikely, that the python dll is using ordinal linking, in which case you would have to find the original .def file and use that for the dlltool command.
One thing to try is to compile the module yourself, using the g++ command that is echoed and play with it until it works to try and find the source of the problem.
abergeron
on 8 Sep 2014
This link will be useful for you. I set up successfully.
Python:Installing Theano on Windows 64bit with Python 3
icoxfog417
on 17 Nov 2014
I resolved a similar issue in another Python package by installing Christoph Gohlke's libpython, but I have some other problems with Theano so I cannot verify this for Theano for the moment.
ziyuang
on 20 Nov 2014
@ziyuang Thanks for your comment. I had same issue(python 2.7.9) and after install libpython, I succeeded the 'import theano' and test.
vense
on 9 Jan 2015
👍7
🎉1
I've got this issue on Windows Server 2008. After I installed libpython, attempting to import Theano would crash python instead of spitting the error back out at me.
Problem signature:
Problem Event Name: APPCRASH
Application Name: python.exe
Application Version: 0.0.0.0
Application Timestamp: 56282f4c
Fault Module Name: lazylinker_ext.pyd
Fault Module Version: 0.0.0.0
Fault Module Timestamp: 5665d658
Exception Code: c000001d
Exception Offset: 000000000000534f
OS Version: 6.1.7600.2.0.0.274.10
Locale ID: 1033
Additional Information 1: 4cdd
Additional Information 2: 4cdde2f7e96f007f51ff6f2f1df3c417
Additional Information 3: f415
Additional Information 4: f4157c7f0a9f8d0758e743818e957197
ClaytonTurnerOld
on 7 Dec 2015
Very hard to debug. Make sure that you have only 1 python installed. If
there is multiple, thing sometimes don't work very well.
On Mon, Dec 7, 2015 at 1:58 PM, Clayton Turner [email protected]
wrote:
I've got this issue on Windows Server 2008. After I installed libpython,
attempting to import Theano would crash python instead of spitting the
error back out at me.—
Reply to this email directly or view it on GitHub
https://github.com/Theano/Theano/issues/2087#issuecomment-162624050.
nouiz
on 11 Dec 2015
My issue may have been pretty specific.
I was using Anaconda as my main set of python tools and was installing Theano into it. It turned out that the newest version of Anaconda has issues with Theano. Additionally, 64 bit versions of Anaconda, even on 64 bit machines, will not cooperate with Theano.
If anyone's having issues on Windows with Theano, then I have a full writeup on what I did and why here: http://claytonturner.blogspot.com/2015/12/theano-on-windows-easy-way.html
ClaytonTurnerOld
on 11 Dec 2015
👍1
I have a similar problem and installing libpython resolves it.
guxd
on 30 Jun 2016
👍5
❤1
I have the similar issue with anaconda. I solved it to install libpython according to the below command:
conda install -c anaconda libpython=2.0
raoweijin
on 15 Nov 2016
👍16
🎉3
❤1
I had the same issue and solved it by installing libpython.
luhgit
on 20 Mar 2017
I had the same issue but installing libpython resolved it. Thank you!!
krajkumar6
on 22 Jun 2017
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Most helpful comment
I have the similar issue with anaconda. I solved it to install libpython according to the below command:
conda install -c anaconda libpython=2.0