imageio-ffmpeg | FFMPEG wrapper for Python | Video Utils library

I missed a dependency, qt5-default. I ended up having these lines for Mayavi running on Docker/CircleCi:

I found out why it wasn't working, it's a bug in pyinstaller. It worked when I used the development version of pyinstaller. I ran pip install https://github.com/pyinstaller/pyinstaller/archive/develop.zip in cmd, and ran the pyinstaller command again, and it worked.

Just to share, not sure it will help you. However it shows that in standard conditions it is possible to use the conda gcc as described in the documentation instead of the system gcc.

Looks like this is part of an actively tracked issue with Tkinter in PyCharm. You can find the reference on the Pycharm's developer's issue tracker. The issue is undiagnosed, but if looking at similar problems with Tk on StackOverflow, one can see that it's an issue with thread safety and/or multithreading.

All I can do is speculate as to the cause, which is not helpful, however, I can at least collate the suggested workarounds:

1. Switch to a different Matplotlib backend (See docs: What is a backend?). Such as Qt5, but you will need to make sure they are available in your environment.

   This approach is the most promising as other backends are better able to deal with not being the main thread or are explicitly safe for multi-threading. It's also the simplest unless you have a really specific reason for preferring TkAgg.

2. Do not use the debugger with interactive plots.

3. Set "Variables Loading Policy" to "Synchronously" in Debugger as suggested by a PyCharm dev in the linked issue.

4. Enable "Scientific mode" in Pycharm.

5. More esoteric workarounds such as closing your figures within the code before drawing the second one. Example, after plotting the first figure:

FFMPEG might be perplexing at times. When using Python, you need perform the following steps to ensure proper installation:

From the list of libraries, it looks like you've installed CPU only version of the Pytorch.

matplotlib.animation requires ffmpeg for saving movies and ImageMagick for saving animated gifs.

See https://matplotlib.org/users/installing.html#install-requirements

Install them with your system package manager:

In the installation part, Conda runs with an implicit --freeze-installed flag, making it a simple install if all the packages are already there.

In the uninstallation, Conda doesn't have an equivalent simple uninstall. Instead, it will attempt to remove the requested package, plus any of its dependencies that were not explicitly installed or required by other packages. Unfortunately, it appears to accomplish this by trying to solve for an environment that consists of only previously requested packages for the env, and this means that all packages that have superseding versions are subject to being updated.

Your particular case appears to be exacerbated by the fact that you have installed from different channels (e.g., conda-forge), but never explicitly defined those channel priorities in your Conda configuration (globally or in the env). So, most of the changes involve switching back to the defaults channel version of packages.

If you're confident that nothing else has changed, then you could use the --force-remove flag.

Another option, if this was the latest thing you've installed, is to try a revision roll-back, but this may also result in drastic changes. That is, check your revision history: