mirror of
https://mau.dev/maunium/synapse.git
synced 2024-12-30 00:14:06 +01:00
119 lines
3.6 KiB
ReStructuredText
119 lines
3.6 KiB
ReStructuredText
- Everything should comply with PEP8. Code should pass
|
|
``pep8 --max-line-length=100`` without any warnings.
|
|
|
|
- **Indenting**:
|
|
|
|
- NEVER tabs. 4 spaces to indent.
|
|
|
|
- follow PEP8; either hanging indent or multiline-visual indent depending
|
|
on the size and shape of the arguments and what makes more sense to the
|
|
author. In other words, both this::
|
|
|
|
print("I am a fish %s" % "moo")
|
|
|
|
and this::
|
|
|
|
print("I am a fish %s" %
|
|
"moo")
|
|
|
|
and this::
|
|
|
|
print(
|
|
"I am a fish %s" %
|
|
"moo",
|
|
)
|
|
|
|
...are valid, although given each one takes up 2x more vertical space than
|
|
the previous, it's up to the author's discretion as to which layout makes
|
|
most sense for their function invocation. (e.g. if they want to add
|
|
comments per-argument, or put expressions in the arguments, or group
|
|
related arguments together, or want to deliberately extend or preserve
|
|
vertical/horizontal space)
|
|
|
|
- **Line length**:
|
|
|
|
Max line length is 79 chars (with flexibility to overflow by a "few chars" if
|
|
the overflowing content is not semantically significant and avoids an
|
|
explosion of vertical whitespace).
|
|
|
|
Use parentheses instead of ``\`` for line continuation where ever possible
|
|
(which is pretty much everywhere).
|
|
|
|
- **Naming**:
|
|
|
|
- Use camel case for class and type names
|
|
- Use underscores for functions and variables.
|
|
|
|
- Use double quotes ``"foo"`` rather than single quotes ``'foo'``.
|
|
|
|
- **Blank lines**:
|
|
|
|
- There should be max a single new line between:
|
|
|
|
- statements
|
|
- functions in a class
|
|
|
|
- There should be two new lines between:
|
|
|
|
- definitions in a module (e.g., between different classes)
|
|
|
|
- **Whitespace**:
|
|
|
|
There should be spaces where spaces should be and not where there shouldn't
|
|
be:
|
|
|
|
- a single space after a comma
|
|
- a single space before and after for '=' when used as assignment
|
|
- no spaces before and after for '=' for default values and keyword arguments.
|
|
|
|
- **Comments**: should follow the `google code style
|
|
<http://google.github.io/styleguide/pyguide.html?showone=Comments#Comments>`_.
|
|
This is so that we can generate documentation with `sphinx
|
|
<http://sphinxcontrib-napoleon.readthedocs.org/en/latest/>`_. See the
|
|
`examples
|
|
<http://sphinxcontrib-napoleon.readthedocs.io/en/latest/example_google.html>`_
|
|
in the sphinx documentation.
|
|
|
|
- **Imports**:
|
|
|
|
- Prefer to import classes and functions than packages or modules.
|
|
|
|
Example::
|
|
|
|
from synapse.types import UserID
|
|
...
|
|
user_id = UserID(local, server)
|
|
|
|
is preferred over::
|
|
|
|
from synapse import types
|
|
...
|
|
user_id = types.UserID(local, server)
|
|
|
|
(or any other variant).
|
|
|
|
This goes against the advice in the Google style guide, but it means that
|
|
errors in the name are caught early (at import time).
|
|
|
|
- Multiple imports from the same package can be combined onto one line::
|
|
|
|
from synapse.types import GroupID, RoomID, UserID
|
|
|
|
An effort should be made to keep the individual imports in alphabetical
|
|
order.
|
|
|
|
If the list becomes long, wrap it with parentheses and split it over
|
|
multiple lines.
|
|
|
|
- As per `PEP-8 <https://www.python.org/dev/peps/pep-0008/#imports>`_,
|
|
imports should be grouped in the following order, with a blank line between
|
|
each group:
|
|
|
|
1. standard library imports
|
|
2. related third party imports
|
|
3. local application/library specific imports
|
|
|
|
- Imports within each group should be sorted alphabetically by module name.
|
|
|
|
- Avoid wildcard imports (``from synapse.types import *``) and relative
|
|
imports (``from .types import UserID``).
|