Python thinks stdin not connected to a TTY

[jkbrzt]

Python running inside Git Bash incorrectly thinks that stdin is not connected to a TTY:

$ python3 -c 'import sys; print(sys.stdin.isatty())'
False  # Should be True

httpie/cli#828

https://docs.python.org/3/library/os.html?highlight=isatty#os.isatty

[dscho]

This issue is listed specifically in the Known Issues in our Release Notes:

• Some console programs, most notably non-MSYS2 Python, PHP, Node and OpenSSL, interact correctly with MinTTY only when called through winpty (e.g. the Python console needs to be started as winpty python instead of just python).

The installer even suggests (on the page titled "Configuring the terminal emulator to use with Git Bash") to

Use Windows' default console window
[...] which works well with Win32 console programs such as interactive Python or node.js [...]

[jkbrzt]

@dscho thank you for the explanation