spyder ValueError: Invalid Signature:

Description

What steps will reproduce the problem?

1. I open spyder and error is produced

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)

[CAM-Gerlach]

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,

Now if you start jupyter qtconsole, does an error still appear?

But I assume the answer is still yes, which is yet another piece of clear evidence this error is not Spyder-related.

Best of luck!

[Andyyowei]

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_Server\Anaconda3\lib\site-packages\zmq\eventloop\zmqstream.py”, line 432, in _run_callback callback(*args, **kwargs) File “C:\Users\MC_Server\Anaconda3\lib\site-packages\tornado\stack_context.py”, line 276, in null_wrapper return fn(*args, **kwargs) File “C:\Users\MC_Server\Anaconda3\lib\site-packages\jupyter_client\threaded.py”, line 86, in _handle_recv msg = self.session.deserialize(smsg) File “C:\Users\MC_Server\Anaconda3\lib\site-packages\jupyter_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_Server\Anaconda3\lib\site-packages\zmq\eventloop\zmqstream.py”, line 450, in _handle_events self._handle_recv() File “C:\Users\MC_Server\Anaconda3\lib\site-packages\zmq\eventloop\zmqstream.py”, line 480, in _handle_recv self._run_callback(callback, msg) File “C:\Users\MC_Server\Anaconda3\lib\site-packages\zmq\eventloop\zmqstream.py”, line 432, in _run_callback callback(*args, **kwargs) File “C:\Users\MC_Server\Anaconda3\lib\site-packages\tornado\stack_context.py”, line 276, in null_wrapper return fn(*args, **kwargs) File “C:\Users\MC_Server\Anaconda3\lib\site-packages\jupyter_client\threaded.py”, line 86, in _handle_recv msg = self.session.deserialize(smsg) File “C:\Users\MC_Server\Anaconda3\lib\site-packages\jupyter_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_Server\Anaconda3\lib\site-packages\ipykernel\kernelbase.py”, line 206, in dispatch_shell msg = self.session.deserialize(msg, content=True, copy=False) File “C:\Users\MC_Server\Anaconda3\lib\site-packages\jupyter_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: <Handle BaseAsyncIOLoop._handle_events(884, 1)> Traceback (most recent call last): File “C:\Users\MC_Server\Anaconda3\lib\asyncio\events.py”, line 145, in _run self._callback(*self._args) File “C:\Users\MC_Server\Anaconda3\lib\site-packages\tornado\platform\asyncio.py”, line 117, in _handle_events handler_func(fileobj, events) File “C:\Users\MC_Server\Anaconda3\lib\site-packages\tornado\stack_context.py”, line 276, in null_wrapper return fn(*args, **kwargs) File “C:\Users\MC_Server\Anaconda3\lib\site-packages\zmq\eventloop\zmqstream.py”, line 450, in _handle_events self._handle_recv() File “C:\Users\MC_Server\Anaconda3\lib\site-packages\zmq\eventloop\zmqstream.py”, line 480, in _handle_recv self._run_callback(callback, msg) File “C:\Users\MC_Server\Anaconda3\lib\site-packages\zmq\eventloop\zmqstream.py”, line 432, in _run_callback callback(*args, **kwargs) File “C:\Users\MC_Server\Anaconda3\lib\site-packages\tornado\stack_context.py”, line 276, in null_wrapper return fn(*args, **kwargs) File “C:\Users\MC_Server\Anaconda3\lib\site-packages\jupyter_client\threaded.py”, line 86, in _handle_recv msg = self.session.deserialize(smsg) File “C:\Users\MC_Server\Anaconda3\lib\site-packages\jupyter_client\session.py”, line 923, in deserialize raise ValueError(“Invalid Signature: %r” % signature) ValueError: Invalid Signature: b’fec7b5ca465cdc9bbd1d4427b2a690922ceef7421f10c428d7ba011c77749507’