How can I check the syntax of Python code in Emacs without actually executing it?

Python's IDLE has 'Check Module' (Alt-X) to check the syntax which can be called without needing to run the code. Is there an equivalent way to do this in Emacs instead of running and executing the code?

Asked by: Walter341 | Posted: 28-01-2022

Answer 1

python -m py_compile

Answered by: Agata575 | Posted: 01-03-2022

Answer 2

You can use Pyflakes together with Flymake in order to get instant notification when your python code is valid (and avoids a few common pitfalls as well).

Answered by: Michael327 | Posted: 01-03-2022

Answer 3

Or from emacs (or vim) you could run python -c 'import x' where x is the name of your file minus the .py extension.

Answered by: Marcus898 | Posted: 01-03-2022

Answer 4

You can use pylint for such things and there seems to be a way to integrate it into emacs, but I've never done the latter b/c I'm a vim user.

Answered by: Connie517 | Posted: 01-03-2022

Answer 5

You can use pylint, pychecker, pyflakes etc. from Emacs' compile command (M-x compile).

Hint: bind a key (say, F5) to recompile.

Answered by: Clark565 | Posted: 01-03-2022

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