Spyder: Errors running or importing code because sys.argv is empty

[beew]

Hi,
Upgraded to spyder 3.1. and tried to import tensorflow and got these errors on the ipython console

import tensorflow
Traceback (most recent call last):

  File "<ipython-input-1-a649b509054f>", line 1, in <module>
    import tensorflow

  File "/usr/local/lib/python2.7/dist-packages/tensorflow/__init__.py", line 24, in <module>
    from tensorflow.python import *

  File "/usr/local/lib/python2.7/dist-packages/tensorflow/python/__init__.py", line 100, in <module>
    from tensorflow.python.platform import app

  File "/usr/local/lib/python2.7/dist-packages/tensorflow/python/platform/app.py", line 23, in <module>
    from tensorflow.python.platform import flags

  File "/usr/local/lib/python2.7/dist-packages/tensorflow/python/platform/flags.py", line 25, in <module>
    _global_parser = _argparse.ArgumentParser()

  File "/usr/lib/python2.7/argparse.py", line 1586, in __init__
    prog = _os.path.basename(_sys.argv[0])

IndexError: list index out of range

It was working before in spyder3.0.2. tensorflow and ipython (5.1.0) versions have not changed. It also works on spyder's python console tab:

Python 2.7.12 (default, Nov 19 2016, 06:48:10) 
[GCC 5.4.0 20160609] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import tensorflow
>>> tensorflow.__version__
'0.12.1'

OS is Ubuntu 16.04 64 bit
P.S same issue with spyder git master.

[ccordoba12]

@andfoy, this one is for you because you changed that. sys.argv has to be equal to [''] but you left it equal to []. This is a very simple change :-)

And please don't forget to do the PR against the 3.1.x branch, not 3.x.

[andfoy]

@ccordoba12 Actually, the line that restarts the sys.argv argument is defined as follows (As per PR #3918):

clear_argv = 'import sys;sys.argv = [''];del sys'

In that case, I don't know exactly where the reinitialization of arguments fails.

[andfoy]

@ccordoba12 If I try the following setting, then the import will work, but it is correct to make this modification?

clear_argv = 'import sys;sys.argv = ["", ""];del sys'

[ccordoba12]

I think the original problem is that you were using single quotes for the clear_argv code and for the contents of sys.argv itself, so this should work:

clear_argv = "import sys;sys.argv = [''];del sys"

(notice the double outside quotes :-)

[DolanDack]

So what's the solution in this error? I face the same problem actually.

[goanpeca]

@DolanDack we are releasing a new bugfix version tomorrow that should fix the issue

[chrisdinant]

Has the bugfix been released? My latest spyder3.1.0 still has the same issue. (64bit windows 10)

edit: I just checked, the package is missing in current win-64 channels. Any idea when it will be released for win-64?

[jitseniesen]

The bug fix has not yet been released, sorry. Some issues unexpectedly turned up during testing. Hopefully 3.1.1 will be released today, and then it typically takes a couple of days for the package to turn up in the anaconda channels.