Patch #1429539: pdb now correctly initializes the __main__ module for
the debugged script, which means that imports from __main__ work
correctly now.
diff --git a/Lib/pdb.py b/Lib/pdb.py
index 5778c05..4b5d1b1 100755
--- a/Lib/pdb.py
+++ b/Lib/pdb.py
@@ -1147,12 +1147,18 @@
return None
def _runscript(self, filename):
- # Start with fresh empty copy of globals and locals and tell the script
- # that it's being run as __main__ to avoid scripts being able to access
- # the pdb.py namespace.
- globals_ = {"__name__" : "__main__"}
- locals_ = globals_
-
+ # The script has to run in __main__ namespace (or imports from
+ # __main__ will break).
+ #
+ # So we clear up the __main__ and set several special variables
+ # (this gets rid of pdb's globals and cleans old variables on restarts).
+ import __main__
+ __main__.__dict__.clear()
+ __main__.__dict__.update({"__name__" : "__main__",
+ "__file__" : filename,
+ "__builtins__": __builtins__,
+ })
+
# When bdb sets tracing, a number of call and line events happens
# BEFORE debugger even reaches user's code (and the exact sequence of
# events depends on python version). So we take special measures to
@@ -1162,7 +1168,7 @@
self.mainpyfile = self.canonic(filename)
self._user_requested_quit = 0
statement = 'execfile( "%s")' % filename
- self.run(statement, globals=globals_, locals=locals_)
+ self.run(statement)
# Simplified interface
@@ -1259,5 +1265,6 @@
# When invoked as main program, invoke the debugger on a script
-if __name__=='__main__':
- main()
+if __name__ == '__main__':
+ import pdb
+ pdb.main()