Remove some type: ignores fixed in typeshed

Author: bluetech

src/_pytest/assertion/rewrite.py

@@ -78,7 +78,8 @@ def find_spec(self, name, path=None, target=None):
             # there's nothing to rewrite there
             # python3.5 - python3.6: `namespace`
             # python3.7+: `None`
-            or spec.origin in {None, "namespace"}
+            or spec.origin == "namespace"
+            or spec.origin is None
             # we can only rewrite source files
             or not isinstance(spec.loader, importlib.machinery.SourceFileLoader)
             # if the file doesn't exist, we can't rewrite it
@@ -743,8 +744,7 @@ def visit_Assert(self, assert_):
             from _pytest.warning_types import PytestAssertRewriteWarning
             import warnings
 
-            # Ignore type: typeshed bug https://github.com/python/typeshed/pull/3121
-            warnings.warn_explicit(  # type: ignore
+            warnings.warn_explicit(
                 PytestAssertRewriteWarning(
                     "assertion is always true, perhaps remove parentheses?"
                 ),

src/_pytest/doctest.py

@@ -368,9 +368,7 @@ def collect(self):
         )
 
         parser = doctest.DocTestParser()
-        # Remove ignore once this reaches mypy:
-        # https://github.com/python/typeshed/commit/3e4a251b2b6da6bb43137acf5abf81ecfa7ba8ee
-        test = parser.get_doctest(text, globs, name, filename, 0)  # type: ignore
+        test = parser.get_doctest(text, globs, name, filename, 0)
         if test.examples:
             yield DoctestItem(test.name, self, runner, test)
 

src/_pytest/nodes.py

@@ -139,8 +139,7 @@ def warn(self, warning):
                 )
             )
         path, lineno = get_fslocation_from_item(self)
-        # Type ignored: https://github.com/python/typeshed/pull/3121
-        warnings.warn_explicit(  # type: ignore
+        warnings.warn_explicit(
             warning,
             category=None,
             filename=str(path),