summaryrefslogtreecommitdiffstats
path: root/docs/code-quality/coding-style/coding_style_python.rst
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
commit36d22d82aa202bb199967e9512281e9a53db42c9 (patch)
tree105e8c98ddea1c1e4784a60a5a6410fa416be2de /docs/code-quality/coding-style/coding_style_python.rst
parentInitial commit. (diff)
downloadfirefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz
firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'docs/code-quality/coding-style/coding_style_python.rst')
-rw-r--r--docs/code-quality/coding-style/coding_style_python.rst71
1 files changed, 71 insertions, 0 deletions
diff --git a/docs/code-quality/coding-style/coding_style_python.rst b/docs/code-quality/coding-style/coding_style_python.rst
new file mode 100644
index 0000000000..3a818fcfd4
--- /dev/null
+++ b/docs/code-quality/coding-style/coding_style_python.rst
@@ -0,0 +1,71 @@
+===================
+Python Coding style
+===================
+
+Coding style
+~~~~~~~~~~~~
+
+ :ref:`black` is the tool used to reformat the Python code.
+
+Linting
+~~~~~~~
+
+The Python linting is done by :ref:`Flake8` and :ref:`pylint`
+They are executed by mozlint both at review phase and in the CI.
+
+Indentation
+~~~~~~~~~~~
+
+Four spaces in Python code.
+
+
+Makefile/moz.build practices
+----------------------------
+
+- Changes to makefile and moz.build variables do not require
+ build-config peer review. Any other build system changes, such as
+ adding new scripts or rules, require review from the build-config
+ team.
+- Suffix long ``if``/``endif`` conditionals with #{ & #}, so editors
+ can display matched tokens enclosing a block of statements.
+
+ ::
+
+ ifdef CHECK_TYPE #{
+ ifneq ($(flavor var_type),recursive) #{
+ $(warning var should be expandable but detected var_type=$(flavor var_type))
+ endif #}
+ endif #}
+
+- moz.build are python and follow normal Python style.
+- List assignments should be written with one element per line. Align
+ closing square brace with start of variable assignment. If ordering
+ is not important, variables should be in alphabetical order.
+
+ .. code-block:: python
+
+ var += [
+ 'foo',
+ 'bar'
+ ]
+
+- Use ``CONFIG['CPU_ARCH'] {=arm}`` to test for generic classes of
+ architecture rather than ``CONFIG['OS_TEST'] {=armv7}`` (re: bug 886689).
+
+
+Other advices
+~~~~~~~~~~~~~
+
+- Install the
+ `mozext <https://hg.mozilla.org/hgcustom/version-control-tools/file/default/hgext/mozext>`__
+ Mercurial extension, and address every issue reported on commit
+ or the output of ``hg critic``.
+- Follow `PEP 8 <https://www.python.org/dev/peps/pep-0008/>`__. Please run :ref:`black` for this.
+- Do not place statements on the same line as ``if/elif/else``
+ conditionals to form a one-liner.
+- Global vars, please avoid them at all cost.
+- Exclude outer parenthesis from conditionals.Use
+ ``if x > 5:,``\ rather than ``if (x > 5):``
+- Use string formatters, rather than var + str(val).
+ ``var = 'Type %s value is %d'% ('int', 5).``
+- Testing/Unit tests, please write them and make sure that they are executed in the CI.