Using python3, there seem to be problems with using certain Python packages and the application resume feature of recent macOS versions. Specifically, whenever I import matplotlib.plyplot or run the magic command %matplotlib in IPython, I get the following warning message:

2018-02-22 10:35:38.287 Python[4145:281298] ApplePersistenceIgnoreState: Existing state will not be touched. New state will be written to (null)

There's an issue in the matplotlib repo, but I don't think this problem can be fixed by matplotlib. Instead, according to this SO post, the following command fixes the behavior:

defaults write org.python.python ApplePersistenceIgnoreState NO

Maybe this should be included in the python3 formula since many people seem to be annoyed by this message.

To reproduce:

1. brew install python3
2. pip3 install ipython matplotlib
3. ipython
4. %matplotlib
5. This leads to the warning message mentioned above.

Expected behavior:

• The warning message in step 5 should not be issued.

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• are reporting a bug others will be able to reproduce and not asking a question. If you're not sure or want to ask a question do so on our Discourse: https://discourse.brew.sh
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• ran brew update and can still reproduce the problem?
• ran brew doctor, fixed all issues and can still reproduce the problem?
• ran brew gist-logs <formula> (where <formula> is the name of the formula that failed) and included the output link?
• if brew gist-logs didn't work: ran brew config and brew doctor and included their output with your issue?

~  brew gist-logs python3
Error: No logs.
~  brew config
HOMEBREW_VERSION: 1.5.4
ORIGIN: https://github.com/Homebrew/brew
HEAD: 021fe22e3c982b08346422d1e7897e929a709380
Last commit: 12 days ago
Core tap ORIGIN: https://github.com/Homebrew/homebrew-core
Core tap HEAD: 2ac975cd3e38bf08e7507cf602dbe42537881cf4
Core tap last commit: 78 minutes ago
HOMEBREW_PREFIX: /usr/local
HOMEBREW_GITHUB_API_TOKEN: set
CPU: octa-core 64-bit haswell
Homebrew Ruby: 2.3.3 => /System/Library/Frameworks/Ruby.framework/Versions/2.3/usr/bin/ruby
Clang: 9.0 build 900
Git: 2.14.3 => /Applications/Xcode.app/Contents/Developer/usr/bin/git
Curl: 7.54.0 => /usr/bin/curl
Perl: /usr/bin/perl
Python: /usr/bin/python
Ruby: /usr/local/bin/ruby => /usr/local/Cellar/ruby/2.5.0_2/bin/ruby
Java: N/A
macOS: 10.13.3-x86_64
Xcode: 9.2
CLT: 9.2.0.0.1.1510905681
X11: N/A