#3573: idle now doesn't hungs if launched as: idle -e <directory>

Patch by Guilherme Polo.

Lib/idlelib/PyShell.py

@@ -1403,8 +1403,10 @@ def main():
 
     if enable_edit:
         if not (cmd or script):
-            for filename in args:
-                flist.open(filename)
+            for filename in args[:]:
+                if flist.open(filename) is None:
+                    # filename is a directory actually, disconsider it
+                    args.remove(filename)
             if not args:
                 flist.new()
     if enable_shell:

Misc/NEWS

@@ -10,6 +10,11 @@ What's New in Python 3.3.0 Alpha 2?
 Core and Builtins
 -----------------
 
+- Issue #3573: IDLE hangs when passing invalid command line args
+  (directory(ies) instead of file(s))
+
+  Thanks to Guilherme Polo for patch and to Roger Serwy for review.
+
 - Issue #1683368: object.__new__ and object.__init__ raise a TypeError if they
   are passed arguments and their complementary method is not overridden.