Apply suggestions from code review

Co-authored-by: Bénédikt Tran <[email protected]>

Author: gaogaotiantian

Lib/linecache.py

@@ -64,7 +64,7 @@ def _getlines_from_code(code):
 
 
 def _source_unavailable(filename):
-    """Return True if the source code is unavailable for such file name"""
+    """Return True if the source code is unavailable for such file name."""
     return (
         not filename
         or (filename.startswith('<')
@@ -134,7 +134,7 @@ def updatecache(filename, module_globals=None):
     if filename.startswith('<frozen ') and module_globals is not None:
         # This is a frozen module, so we need to use the filename
         # from the module globals.
-        fullname = module_globals.get('__file__', None)
+        fullname = module_globals.get('__file__')
         if fullname is None:
             return []
     else:

Misc/NEWS.d/next/Library/2025-03-23-18-39-07.gh-issue-60115.AWdcmq.rst

@@ -1 +1 @@
-Support frozen modules for :func:`linecache.getlines()`
+Support frozen modules for :func:`linecache.getlines`.