How can I check for unused import in many Python files?

Question

I remember when I was developing in C++ or Java, the compiler usually complains for unused methods, functions or imports. In my Django project, I have a bunch of Python fil

Answer 1

Have a look at PyChecker. It is a debugging tool and able to find unused variables and modules.

Answer 2

You can use the following user setting:

"python.linting.pylintEnabled": true,
"python.linting.pylintArgs": [
    "--enable=W0614"
]

But I think, you'll need to go through all files yourself and hit "save".

Answer 3

Importchecker is a commandline utility to find unused imports in Python modules.

Answer 4

Use a tool like pylint which will signal these code defects (among a lot of others).

Doing these kinds of 'pre-runtime' checks is hard in a language with dynamic typing, but pylint does a terrific job at catching these typos / leftovers from refactoring etc ...

Answer 5

autoflake is an improved version of pyflakes with additional options. It uses pyflakes under the hood, I would recommend to use it instead of using pyflakes directly.

Answer 6

I agree with using PyFlakes. It's like linting, but it excludes styling errors.

UPDATE

How to run: pyflakes <your python file> or pyflakes <your folder containing python files>

BE CAREFUL!!!

If you run it just with command pyflakes, it takes a really long time like it is never-ending. My hypothesis is it is trying to check every python file in your machine/folder when you call it that way.