refactor(modutils): inline overcomplicated _is_python_file function

logilab/common/modutils.py

@@ -167,7 +167,7 @@
             dirnames[:] = ()
             continue
         for filename in filenames:
-            if _is_python_file(filename):
+            if filename.endswith((".py", ".so", ".pyd", ".pyw")):
                 src = join(directory, filename)
                 files.append(src)
     return files
@@ -208,14 +208,3 @@
     return (
         pkg_resources is not None and modname in pkg_resources._namespace_packages  # type: ignore
     )
-
-
-def _is_python_file(filename: str) -> bool:
-    """return true if the given filename should be considered as a python file
-
-    .pyc and .pyo are ignored
-    """
-    for ext in (".py", ".so", ".pyd", ".pyw"):
-        if filename.endswith(ext):
-            return True
-    return False