sl-docformatter 1.4

Formats docstrings to follow PEP 257.

Formats docstrings to follow PEP 257.

Warning

This fork exists to build a version of docformatter that hasn’t been released yet and push it to our PyPi mirror so we don’t have to install it from Github. We need this because the unreleased version added -c to check if the doc strings are properly formatted.

Features

docformatter currently automatically formats docstrings to follow a subset of the PEP 257 conventions. Below are the relevant items quoted from PEP 257.

• For consistency, always use triple double quotes around docstrings.

• Triple quotes are used even though the string fits on one line.

• Multi-line docstrings consist of a summary line just like a one-line docstring, followed by a blank line, followed by a more elaborate description.

• Unless the entire docstring fits on a line, place the closing quotes on a line by themselves.

docformatter also handles some of the PEP 8 conventions.

• Don’t write string literals that rely on significant trailing whitespace. Such trailing whitespace is visually indistinguishable and some editors (or more recently, reindent.py) will trim them.

Installation

From pip:

$ pip install --upgrade docformatter

Example

After running:

$ docformatter --in-place example.py

this code

"""   Here are some examples.

    This module docstring should be dedented."""


def launch_rocket():
    """Launch
the
rocket. Go colonize space."""


def factorial(x):
    '''

    Return x factorial.

    This uses math.factorial.

    '''
    import math
    return math.factorial(x)


def print_factorial(x):
    """Print x factorial"""
    print(factorial(x))


def main():
    """Main
    function"""
    print_factorial(5)
    if factorial(10):
        launch_rocket()

gets formatted into this

"""Here are some examples.

This module docstring should be dedented.
"""


def launch_rocket():
    """Launch the rocket.

    Go colonize space.
    """


def factorial(x):
    """Return x factorial.

    This uses math.factorial.
    """
    import math
    return math.factorial(x)


def print_factorial(x):
    """Print x factorial."""
    print(factorial(x))


def main():
    """Main function."""
    print_factorial(5)
    if factorial(10):
        launch_rocket()

Options

Below is the help output:

usage: docformatter [-h] [-i | -c] [-r] [--wrap-summaries length]
                    [--wrap-descriptions length] [--blank]
                    [--pre-summary-newline] [--make-summary-multi-line]
                    [--force-wrap] [--range line line] [--version]
                    files [files ...]

Formats docstrings to follow PEP 257.

positional arguments:
  files                 files to format or '-' for standard in

optional arguments:
  -h, --help            show this help message and exit
  -i, --in-place        make changes to files instead of printing diffs
  -c, --check           only check and report incorrectly formatted files
  -r, --recursive       drill down directories recursively
  --wrap-summaries length
                        wrap long summary lines at this length; set to 0 to
                        disable wrapping (default: 79)
  --wrap-descriptions length
                        wrap descriptions at this length; set to 0 to disable
                        wrapping (default: 72)
  --blank               add blank line after description
  --pre-summary-newline
                        add a newline before the summary of a multi-line
                        docstring
  --make-summary-multi-line
                        add a newline before and after the summary of a one-
                        line docstring
  --force-wrap          force descriptions to be wrapped even if it may result
                        in a mess
  --range line line     apply docformatter to docstrings between these lines;
                        line numbers are indexed at 1
  --version             show program's version number and exit

Possible exit codes:

• 1 - if any error encountered

• 3 - if any file needs to be formatted (in --check mode)

Wrapping descriptions

docformatter will wrap descriptions, but only in simple cases. If there is text that seems like a bulleted/numbered list, docformatter will leave the description as is:

- Item one.
- Item two.
- Item three.

This prevents the risk of the wrapping turning things into a mess. To force even these instances to get wrapped use --force-wrap.

Issues

Bugs and patches can be reported on the GitHub page.

Links

• Coveralls