Fix several issues relating to access to source code inside zipfiles. Initial work by Alexander Belopolsky. See Misc/NEWS in this checkin for details.
diff --git a/Lib/pdb.py b/Lib/pdb.py
index 4a080c7..3f76032 100755
--- a/Lib/pdb.py
+++ b/Lib/pdb.py
@@ -440,7 +440,7 @@
         Return `lineno` if it is, 0 if not (e.g. a docstring, comment, blank
         line or EOF). Warning: testing is not comprehensive.
         """
-        line = linecache.getline(filename, lineno)
+        line = linecache.getline(filename, lineno, self.curframe.f_globals)
         if not line:
             print >>self.stdout, 'End of file'
             return 0
@@ -768,7 +768,7 @@
         breaklist = self.get_file_breaks(filename)
         try:
             for lineno in range(first, last+1):
-                line = linecache.getline(filename, lineno)
+                line = linecache.getline(filename, lineno, self.curframe.f_globals)
                 if not line:
                     print >>self.stdout, '[EOF]'
                     break