Keep single line Python function definitions? Follow

Created August 30, 2019 20:48

I've been a JetBrains user for years and years (primarily PHPStorm) now, but I can't find anywhere to set this in PyCharm.

If I have a piece of code, say:

class Foo:

    def some_func(self): ...

    def other_func(self): raise NotImplementedError

There doesn't seem to be any way to make PyCharm keep these single-line function definitions. They're being defined like that specifically to save space when there are many function stubs defined for child classes.

PyCharm always formats them to

class Foo:

    def some_func(self):

        ...

    def other_func(self):

        raise NotImplementedError

Which I just don't want...

No amount of tweaking the code formatting options seems to have any effect on this behavior.

The setting for single-line statements works fine. Just not functions.

2 comments

Alex Wardle

Created August 03, 2022 19:10

While not purely "pythonic", I tend to use single-line def's for properties to keep the avoid unnecessary line breaks.

@dataclass
class Number:
    num: int

    @property
    def double(self): return self.num * 2

    @property
    def triple(self): return self.num * 3

PyCharm doesn't show any warning, but it re-adds the line breaks whenever I auto-format the file.

EDIT: previous message said I found a solution, but I was mistaken.

Andrey Resler

Created August 03, 2022 22:46

Testing in 2022.2 with the following snippet:

class Foo:
    def __init__(self): ...

    def _do(self): ...

Reformatting this doesn't change single-line definitions to multi-line for me.

Please try resetting the code style settings to defaults and try again.

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