3.16. Typing Annotate

3.16.1. PyAnnotate

• Annotating existing code

• http://mypy-lang.blogspot.com/2017/11/dropbox-releases-pyannotate-auto.html

The -w flag means "go ahead, update the file":

$ python3 -m pip install pyannotate
$ python3 -m pyannotate -w myfile.py

3.16.2. Monkeytype

• Annotating existing code

• https://instagram-engineering.com/let-your-code-type-hint-itself-introducing-open-source-monkeytype-a855c7284881

$ python3 -m pip install monkeytype
$ python3 -m monkeytype run myfile.py
$ python3 -m monkeytype stub myfile.py
$ python3 -m monkeytype apply myfile.py