pysource-minimize

If you build a linter, formatter or any other tool which has to analyse python source code you might end up searching bugs in pretty large input files.

pysource_minimize is able to remove everything from the python source which is not related to the problem.

CLI

You can use pysource-minimize from the command line like follow:

pysource-minimize --file bug.py --track "Assertion" -- python bug.py

This will run python bug.py and try to find the string "Assertion" in the output. The --file bug.py gets minimized as long as "Assertion" is part of the output of the command.

Warning

Be careful when you execute code which gets minimized. It might be that some combination of the code you minimize erases your hard drive or does other unintended things.

API

Example:

>>> from pysource_minimize import minimize

>>> source = """
... def f():
...     print("bug"+"other string")
...     return 1+1
... f()
... """

>>> print(minimize(source, lambda new_source: "bug" in new_source))
"""bug"""