# HG changeset patch
# User Paul Boddie <paul@boddie.org.uk>
# Date 1484240629 -3600
# Node ID 3b41a8721f9c901491310a2780e8462c68b4b6d5
# Parent  f78e88fc732126cdbfc7ba28d0dde2dd2e31fbb4
Make sure that __main__ is always present in the module ordering.

diff -r f78e88fc7321 -r 3b41a8721f9c importer.py
--- a/importer.py	Thu Jan 12 18:03:01 2017 +0100
+++ b/importer.py	Thu Jan 12 18:03:49 2017 +0100
@@ -699,7 +699,9 @@
             if not have_next:
                 raise ProgramError("Modules with unresolvable dependencies exist: %s" % ", ".join(usage.keys()))
 
-        ordered.remove("__main__")
+        if "__main__" in ordered:
+            ordered.remove("__main__")
+
         ordered.append("__main__")
         return ordered