spyder ValueError: Invalid Signature:

Created on 22 Apr 2018 · 11Comments · Source: spyder-ide/spyder

Description

What steps will reproduce the problem?

I open spyder and error is produced
2.

What is the expected output? What do you see instead?

Please provide any additional information below

ValueError: Invalid Signature: b'4eb60105a40ae5efed4462fcda95240d465fb552a040592f88e612f7fc314337'
ValueError: Invalid Signature: b'4eb60105a40ae5efed4462fcda95240d465fb552a040592f88e612f7fc314337'
ValueError: Invalid Signature: b'9231b9cc51a19211b13179fcec6bfbce467be9db144f7aff7c702d4b8fefff2c'

Version and main components

Spyder Version: 3.2.6
Python Version: 3.6.4
Qt Versions: 5.6.2, PyQt5 5.6 on Windows

Dependencies

pyflakes >=0.6.0 :  1.6.0 (OK)
pycodestyle >=2.3:  2.3.1 (OK)
pygments >=2.0   :  2.2.0 (OK)
pandas >=0.13.1  :  0.22.0 (OK)
numpy >=1.7      :  1.14.0 (OK)
sphinx >=0.6.6   :  1.6.6 (OK)
rope >=0.9.4     :  0.10.7 (OK)
jedi >=0.9.0     :  0.11.1 (OK)
nbconvert >=4.0  :  5.3.1 (OK)
sympy >=0.7.3    :  1.1.1 (OK)
cython >=0.21    :  0.27.3 (OK)
qtconsole >=4.2.0:  4.3.1 (OK)
IPython >=4.0    :  6.2.1 (OK)
pylint >=0.25    :  1.8.2 (OK)

NotSpyder

Source

Andyyowei

All 11 comments

Thanks for reporting. Please try the steps listed in the Spyder Troubleshooting Guide, specifically the Basic First Aid and Emergency CPR sections, which resolve the great majority of Spyder installation issues. In particular, make sure you update spyder, and if that doesn't do it, reinstall Anaconda.

If it still isn't working, please describe in detail the circumstances in which the error occurred, and post the information listed in relevant subsection of the Calling for Help section as a comment to this issue, and we'll try to help if we can. Otherwise, your issue will likely have to be closed after one week (7 days). Thanks, and best of luck!

CAM-Gerlach on 23 Apr 2018

Hi I have tried the Spyder Troubleshooting Guide
and i also uninstall anaconda then reinstall many times
when I start spyder it will display connecting to kernel
and then I restart the kernel the error produced as below

ValueError: Invalid Signature: b'efb4db041b933cb3c96671930dcc7e360ee59376f61ccfe602bf615f75fd6477'
ValueError: Invalid Signature: b'efb4db041b933cb3c96671930dcc7e360ee59376f61ccfe602bf615f75fd6477'
ValueError: Invalid Signature: b'efb4db041b933cb3c96671930dcc7e360ee59376f61ccfe602bf615f75fd6477'

Andyyowei on 23 Apr 2018

This looks like a duplicate of issue #6335. Please update Python to 3.6.5 and try again.

ccordoba12 on 23 Apr 2018

It looks like an error with the IPython console or another component of your install, not Spyder itself. Can you try updating everything, e.g. conda update spyder ipython ipykernel tornado pyzmq python?

Can you try running jupyter qtconsole from the Anaconda prompt as was stated in the Troubleshooting Guide? Can you try debug mode, as was also requested in the Guide? What results do you get from each?

Do you have hydrogen installed? I see the same error for several of their issues, e.g. interact/hydrogen#780 .

If none of that helps, please provide the information I requested in the previous post and in the Troubleshooting Guide so that we can try to help you.

CAM-Gerlach on 23 Apr 2018

The following is the message when I set SPYDER_BUG=3 and start spyder

Start of MainWindow constructor
appusermodelid: 0
End of MainWindow constructor
* Start of MainWindow setup
..core actions
..toolbars
..tools
..sift?
..plugin: internal console
..internal console: initializing
..plugin: working directory
Loading help...
Loading outline explorer...
Loading editor...
Introspection Plugin Loaded: rope
Introspection Plugin Loaded: jedi
Introspection Plugin Loaded: fallback
setfocusto:
current_changed: 0 1880981419208
Added thread to queue
Added thread to queue
..widgets
Loading file explorer...
Loading history plugin...
Loading online help...
Updating queue:
started: 0
pending: 2
===>starting:
Updating queue:
started: 1
pending: 1
===>starting:
Loading project explorer...
Updating queue:
started: 0
pending: 0
Updating queue:
started: 0
pending: 0
Loading namespace browser...
Loading IPython console...
Setting up main window...
Setting up window...
End of MainWindow setup
Call to 'close_threads'
setfocusto:
current_changed: 0 1880981505944
Added thread to queue
Added thread to queue
Updating queue:
started: 0
pending: 2
===>starting:
Updating queue:
started: 1
pending: 1
===>starting:
Updating queue:
started: 0
pending: 0
Updating queue:
started: 0
pending: 0
Initialized fallback
Initialized jedi
ERROR:tornado.general:Uncaught exception in ZMQStream callback
Traceback (most recent call last):
File "C:\Users\MC_ServerAnaconda3\lib\site-packages\zmq\eventloop\zmqstream.py", line 432, in _run_callback
callback(args, *kwargs)
File "C:\Users\MC_ServerAnaconda3\lib\site-packages\tornado\stack_context.py", line 276, in null_wrapper
return fn(args, *kwargs)
File "C:\Users\MC_ServerAnaconda3\lib\site-packagesjupyter_client\threaded.py", line 86, in _handle_recv
msg = self.session.deserialize(smsg)
File "C:\Users\MC_ServerAnaconda3\lib\site-packagesjupyter_client\session.py", line 923, in deserialize
raise ValueError("Invalid Signature: %r" % signature)
ValueError: Invalid Signature: b'ac0718de923d4b4f3fe9ee68fcdfa3ae40ce19925f95b216928e315aca1634e0'
ERROR:tornado.general:Uncaught exception in zmqstream callback
Traceback (most recent call last):
File "C:\Users\MC_ServerAnaconda3\lib\site-packages\zmq\eventloop\zmqstream.py", line 450, in _handle_events
self._handle_recv()
File "C:\Users\MC_ServerAnaconda3\lib\site-packages\zmq\eventloop\zmqstream.py", line 480, in _handle_recv
self._run_callback(callback, msg)
File "C:\Users\MC_ServerAnaconda3\lib\site-packages\zmq\eventloop\zmqstream.py", line 432, in _run_callback
callback(args, *kwargs)
File "C:\Users\MC_ServerAnaconda3\lib\site-packages\tornado\stack_context.py", line 276, in null_wrapper
return fn(args, *kwargs)
File "C:\Users\MC_ServerAnaconda3\lib\site-packagesjupyter_client\threaded.py", line 86, in _handle_recv
msg = self.session.deserialize(smsg)
File "C:\Users\MC_ServerAnaconda3\lib\site-packagesjupyter_client\session.py", line 923, in deserialize
raise ValueError("Invalid Signature: %r" % signature)
ValueError: Invalid Signature: b'ac0718de923d4b4f3fe9ee68fcdfa3ae40ce19925f95b216928e315aca1634e0'
ERROR:asyncio:Exception in callback BaseAsyncIOLoop._handle_events(3636, 1)
handle: Traceback (most recent call last):
File "C:\Users\MC_ServerAnaconda3\lib\asyncio\events.py", line 145, in _run
self._callback(self._args)
File "C:\Users\MC_ServerAnaconda3\lib\site-packages\tornado\platform\asyncio.py", line 117, in _handle_events
handler_func(fileobj, events)
File "C:\Users\MC_ServerAnaconda3\lib\site-packages\tornado\stack_context.py", line 276, in null_wrapper
return fn(args, *kwargs)
File "C:\Users\MC_ServerAnaconda3\lib\site-packages\zmq\eventloop\zmqstream.py", line 450, in _handle_events
self._handle_recv()
File "C:\Users\MC_ServerAnaconda3\lib\site-packages\zmq\eventloop\zmqstream.py", line 480, in _handle_recv
self._run_callback(callback, msg)
File "C:\Users\MC_ServerAnaconda3\lib\site-packages\zmq\eventloop\zmqstream.py", line 432, in _run_callback
callback(args, *kwargs)
File "C:\Users\MC_ServerAnaconda3\lib\site-packages\tornado\stack_context.py", line 276, in null_wrapper
return fn(args, *kwargs)
File "C:\Users\MC_ServerAnaconda3\lib\site-packagesjupyter_client\threaded.py", line 86, in _handle_recv
msg = self.session.deserialize(smsg)
File "C:\Users\MC_ServerAnaconda3\lib\site-packagesjupyter_client\session.py", line 923, in deserialize
raise ValueError("Invalid Signature: %r" % signature)
ValueError: Invalid Signature: b'ac0718de923d4b4f3fe9ee68fcdfa3ae40ce19925f95b216928e315aca1634e0'
ERROR:tornado.general:Uncaught exception in ZMQStream callback
Traceback (most recent call last):
File "C:\Users\MC_ServerAnaconda3\lib\site-packages\zmq\eventloop\zmqstream.py", line 432, in _run_callback
callback(args, *kwargs)
File "C:\Users\MC_ServerAnaconda3\lib\site-packages\tornado\stack_context.py", line 276, in null_wrapper
return fn(args, *kwargs)
File "C:\Users\MC_ServerAnaconda3\lib\site-packagesjupyter_client\threaded.py", line 86, in _handle_recv
msg = self.session.deserialize(smsg)
File "C:\Users\MC_ServerAnaconda3\lib\site-packagesjupyter_client\session.py", line 923, in deserialize
raise ValueError("Invalid Signature: %r" % signature)
ValueError: Invalid Signature: b'3828832c4660342dd62d9d0833b8ea78d8d4084be302c323bde8e3645b013b8f'
ERROR:tornado.general:Uncaught exception in zmqstream callback
Traceback (most recent call last):
File "C:\Users\MC_ServerAnaconda3\lib\site-packages\zmq\eventloop\zmqstream.py", line 450, in _handle_events
self._handle_recv()
File "C:\Users\MC_ServerAnaconda3\lib\site-packages\zmq\eventloop\zmqstream.py", line 480, in _handle_recv
self._run_callback(callback, msg)
File "C:\Users\MC_ServerAnaconda3\lib\site-packages\zmq\eventloop\zmqstream.py", line 432, in _run_callback
callback(args, *kwargs)
File "C:\Users\MC_ServerAnaconda3\lib\site-packages\tornado\stack_context.py", line 276, in null_wrapper
return fn(args, *kwargs)
File "C:\Users\MC_ServerAnaconda3\lib\site-packagesjupyter_client\threaded.py", line 86, in _handle_recv
msg = self.session.deserialize(smsg)
File "C:\Users\MC_ServerAnaconda3\lib\site-packagesjupyter_client\session.py", line 923, in deserialize
raise ValueError("Invalid Signature: %r" % signature)
ValueError: Invalid Signature: b'3828832c4660342dd62d9d0833b8ea78d8d4084be302c323bde8e3645b013b8f'
ERROR:asyncio:Exception in callback BaseAsyncIOLoop._handle_events(3592, 1)
handle: Traceback (most recent call last):
File "C:\Users\MC_ServerAnaconda3\lib\asyncio\events.py", line 145, in _run
self._callback(self._args)
File "C:\Users\MC_ServerAnaconda3\lib\site-packages\tornado\platform\asyncio.py", line 117, in _handle_events
handler_func(fileobj, events)
File "C:\Users\MC_ServerAnaconda3\lib\site-packages\tornado\stack_context.py", line 276, in null_wrapper
return fn(args, *kwargs)
File "C:\Users\MC_ServerAnaconda3\lib\site-packages\zmq\eventloop\zmqstream.py", line 450, in _handle_events
self._handle_recv()
File "C:\Users\MC_ServerAnaconda3\lib\site-packages\zmq\eventloop\zmqstream.py", line 480, in _handle_recv
self._run_callback(callback, msg)
File "C:\Users\MC_ServerAnaconda3\lib\site-packages\zmq\eventloop\zmqstream.py", line 432, in _run_callback
callback(args, *kwargs)
File "C:\Users\MC_ServerAnaconda3\lib\site-packages\tornado\stack_context.py", line 276, in null_wrapper
return fn(args, **kwargs)
File "C:\Users\MC_ServerAnaconda3\lib\site-packagesjupyter_client\threaded.py", line 86, in _handle_recv
msg = self.session.deserialize(smsg)
File "C:\Users\MC_ServerAnaconda3\lib\site-packagesjupyter_client\session.py", line 923, in deserialize
raise ValueError("Invalid Signature: %r" % signature)
ValueError: Invalid Signature: b'3828832c4660342dd62d9d0833b8ea78d8d4084be302c323bde8e3645b013b8f'

Andyyowei on 24 Apr 2018

👍1

The following is jupyter qtconsole

(base) C:\Users\MC_Server>jupyter qtconsole
ERROR:tornado.general:Uncaught exception in ZMQStream callback
Traceback (most recent call last):
File "C:\Users\MC_ServerAnaconda3\lib\site-packages\zmq\eventloop\zmqstream.py", line 432, in _run_callback
callback(args, *kwargs)
File "C:\Users\MC_ServerAnaconda3\lib\site-packages\tornado\stack_context.py", line 276, in null_wrapper
return fn(args, *kwargs)
File "C:\Users\MC_ServerAnaconda3\lib\site-packagesjupyter_client\threaded.py", line 86, in _handle_recv
msg = self.session.deserialize(smsg)
File "C:\Users\MC_ServerAnaconda3\lib\site-packagesjupyter_client\session.py", line 923, in deserialize
raise ValueError("Invalid Signature: %r" % signature)
ValueError: Invalid Signature: b'fec7b5ca465cdc9bbd1d4427b2a690922ceef7421f10c428d7ba011c77749507'
ERROR:tornado.general:Uncaught exception in zmqstream callback
Traceback (most recent call last):
File "C:\Users\MC_ServerAnaconda3\lib\site-packages\zmq\eventloop\zmqstream.py", line 450, in _handle_events
self._handle_recv()
File "C:\Users\MC_ServerAnaconda3\lib\site-packages\zmq\eventloop\zmqstream.py", line 480, in _handle_recv
self._run_callback(callback, msg)
File "C:\Users\MC_ServerAnaconda3\lib\site-packages\zmq\eventloop\zmqstream.py", line 432, in _run_callback
callback(args, *kwargs)
File "C:\Users\MC_ServerAnaconda3\lib\site-packages\tornado\stack_context.py", line 276, in null_wrapper
return fn(args, *kwargs)
File "C:\Users\MC_ServerAnaconda3\lib\site-packagesjupyter_client\threaded.py", line 86, in _handle_recv
msg = self.session.deserialize(smsg)
File "C:\Users\MC_ServerAnaconda3\lib\site-packagesjupyter_client\session.py", line 923, in deserialize
raise ValueError("Invalid Signature: %r" % signature)
ValueError: Invalid Signature: b'fec7b5ca465cdc9bbd1d4427b2a690922ceef7421f10c428d7ba011c77749507'
[IPKernelApp] ERROR | Invalid Message
Traceback (most recent call last):
File "C:\Users\MC_ServerAnaconda3\lib\site-packagesipykernel\kernelbase.py", line 206, in dispatch_shell
msg = self.session.deserialize(msg, content=True, copy=False)
File "C:\Users\MC_ServerAnaconda3\lib\site-packagesjupyter_client\session.py", line 923, in deserialize
raise ValueError("Invalid Signature: %r" % signature)
ValueError: Invalid Signature: b'438aceff56ef6f1984bb782d999b69b6004eed336043cd3c8150ff5f05a5bb41'
ERROR:asyncio:Exception in callback BaseAsyncIOLoop._handle_events(884, 1)
handle: Traceback (most recent call last):
File "C:\Users\MC_ServerAnaconda3\lib\asyncio\events.py", line 145, in _run
self._callback(self._args)
File "C:\Users\MC_ServerAnaconda3\lib\site-packages\tornado\platform\asyncio.py", line 117, in _handle_events
handler_func(fileobj, events)
File "C:\Users\MC_ServerAnaconda3\lib\site-packages\tornado\stack_context.py", line 276, in null_wrapper
return fn(args, *kwargs)
File "C:\Users\MC_ServerAnaconda3\lib\site-packages\zmq\eventloop\zmqstream.py", line 450, in _handle_events
self._handle_recv()
File "C:\Users\MC_ServerAnaconda3\lib\site-packages\zmq\eventloop\zmqstream.py", line 480, in _handle_recv
self._run_callback(callback, msg)
File "C:\Users\MC_ServerAnaconda3\lib\site-packages\zmq\eventloop\zmqstream.py", line 432, in _run_callback
callback(args, *kwargs)
File "C:\Users\MC_ServerAnaconda3\lib\site-packages\tornado\stack_context.py", line 276, in null_wrapper
return fn(args, **kwargs)
File "C:\Users\MC_ServerAnaconda3\lib\site-packagesjupyter_client\threaded.py", line 86, in _handle_recv
msg = self.session.deserialize(smsg)
File "C:\Users\MC_ServerAnaconda3\lib\site-packagesjupyter_client\session.py", line 923, in deserialize
raise ValueError("Invalid Signature: %r" % signature)
ValueError: Invalid Signature: b'fec7b5ca465cdc9bbd1d4427b2a690922ceef7421f10c428d7ba011c77749507'

Andyyowei on 24 Apr 2018

👍1

Thanks, that's exactly what we needed.

ERROR:tornado.general:Uncaught exception in ZMQStream callback

The following is jupyter qtconsole

This tells us two things: The problem has nothing to do with Spyder (as it also occurs in qtconsole), and specifically that its a duplicate of #6627 or something similar. Therefore, running the above conda update command I requested previously will almost certainly fix it.

CAM-Gerlach on 24 Apr 2018

I start spyder and it appears
ValueError: Invalid Signature: b'b116539a06f524f33676a8bdd22ee50d7e2bd08209effb68392d880e50fb19e6'
ValueError: Invalid Signature: b'f950e7d1407089f28178cd51e0e5e65cf698f349d3845c942c8980acf49bf07a'

actually, before I post those two comments I had tried conda update spyder ipython .....
but some of them appeared safety ERROR: ...... is corupted and ........ sha 256 .... like that

and then I tried again the following is

(base) C:\Users\MC_Server>conda update ipykernel
Solving environment: done
# All requested packages already installed.

(base) C:\Users\MC_Server>conda update tornado
Solving environment: done
# All requested packages already installed.

(base) C:\Users\MC_Server>conda update pyzmq
Solving environment: done
# All requested packages already installed.

Andyyowei on 24 Apr 2018

Protip: Put triple backticks ``` above and below code or output blocks on github; otherwise, the formatting and spacing will be crazy. I did it for you on your post above.

but some of them appeared safety ERROR: ...... is corupted and ........ sha 256 .... like that

What do you mean by this? Sorry, but I don't understand at all what you're trying to say here. Remember the Zen of Python: Explicit is better than implicit.

and then I tried again the following is
# All requested packages already installed.

That means they're already up to date.

ValueError: Invalid Signature:

Now if you start jupyter qtconsole, does an error still appear? I presume it does, and if so the situation is the same as described above. Try downgrading tornado with conda install tornado=4.5.3. Again, it seems as if something is messed up with your install, or its something else specific to your local machine, which we have no control over.

Also, can you please answer my previous question:

Do you have hydrogen installed? I see the same error for several of their issues, e.g. interact/hydrogen#780 .

Thanks.

CAM-Gerlach on 24 Apr 2018

I mean first time I run conda update spyder ipython .......
some of update appeared the message something like below

SafetyError: The package for ______ located at ~/anaconda3/pkgs/_____ appears to be corrupted. The path '~/____' has a sha256 mismatch. reported sha256: e3df799e317d2796d064e1b384e0acfeee81f03399465ad87a78c91e39ea9c32 actual sha256:

And second time I do the same thing as first time
all of them appear:

Solving environment: done
# All requested packages already installed.

Sorry, I am not sure what hydrogen is.
First time I install anaconda spyder ,they all works.
After running some code about tensorflow , spyder crashes so I uninstall all of them and reinstall
then occurred the above problums

Andyyowei on 24 Apr 2018

Thanks for the followup. Please remember to put ``` above and below your code/output blocks as I stated previously, or they will be all messed up and very hard to read due to Github's formatting, as you can clearly see looking at your posts. I had to do so again editing your post above so I could follow it.

some of update appeared the message something like below

Thanks, that's quite helpful. Please try to post error messages in full like that in the future. The message suggests something is indeed corrupted with your install, which has to do with conda and other Anaconda infrastructure rather than anything related to Spyder, and a quick Google revealed this relevant issue on the conda repo, to which further problems in the vein should be reported it has nothing to do with Spyder and there isn't anything we can do about it. Very likely, this is related to something specific in your environment, like installing a bad package, using pip in any way, or something weird with your environments; there's also a chance it could be security/antivirus software messing with things (as the Guide suggests).

First time I install anaconda spyder ,they all works.

Right...

After running some code about tensorflow , spyder crashes

Well, there you go. That's the most likely source of the problem discussed above; there are many problems with Tensorflow and many users install it with pip or its whole problem conda environment, so very likely this is your issue. Again, this has nothing to do with Spyder and there's nothing more we can do to help from our side; this should be reported to the conda folks or possibly Tensorflow if you're sure its not a problem on your end (which it seems like to some extent).

Also, I didn't get an answer to my previous question,