Add basic mypy support

Silence some errors, run mypy in CI

Adding annotations to functions/classes will make mypy check them.

3 files changed, 5 insertions, 4 deletions

diff --git a/giscanner/__init__.py b/giscanner/__init__.py
index 79c537e8..7c2f365a 100644
--- a/giscanner/__init__.py
+++ b/giscanner/__init__.py
@@ -20,7 +20,7 @@
 import os
 builddir = os.environ.get('UNINSTALLED_INTROSPECTION_BUILDDIR')
 if builddir is not None:
-    __path__.append(os.path.join(builddir, 'giscanner'))
+    __path__.append(os.path.join(builddir, 'giscanner'))  # type: ignore  # mypy issue #1422
 try:
     from ._version import __version__
 except ImportError:
diff --git a/giscanner/annotationparser.py b/giscanner/annotationparser.py
index f8257206..267542f9 100644
--- a/giscanner/annotationparser.py
+++ b/giscanner/annotationparser.py
@@ -110,6 +110,7 @@ import os
 import re
 import operator
 
+from typing import Tuple
 from operator import ne, gt, lt
 from collections import namedtuple, Counter, OrderedDict
 
@@ -575,7 +576,7 @@ class GtkDocAnnotatable(object):
     #: A :class:`tuple` of annotation name constants that are valid for this object. Annotation
     #: names not in this :class:`tuple` will be reported as *unknown* by :func:`validate`. The
     #: :attr:`valid_annotations` class attribute should be overridden by subclasses.
-    valid_annotations = ()
+    valid_annotations = ()  # type: Tuple[str,...]
 
     def __init__(self, position=None):
         #: A :class:`giscanner.message.Position` instance specifying the location of the
diff --git a/giscanner/utils.py b/giscanner/utils.py
index d9938fc7..9007db13 100644
--- a/giscanner/utils.py
+++ b/giscanner/utils.py
@@ -346,5 +346,5 @@ def get_msvcr_overwrite():
 
 
 import distutils.cygwinccompiler
-orig_get_msvcr = distutils.cygwinccompiler.get_msvcr
-distutils.cygwinccompiler.get_msvcr = get_msvcr_overwrite
+orig_get_msvcr = distutils.cygwinccompiler.get_msvcr  # type: ignore
+distutils.cygwinccompiler.get_msvcr = get_msvcr_overwrite  # type: ignore