repositories: skip paths that cannot be chdir'ed into

(most probably because they are files, not directories)

eodb/events/management/commands/feed_repositories.py

@@ -35,7 +35,10 @@ class Command(BaseCommand):
         basedir = os.getcwd()
         for repository in sorted(options.get('repository')):
             os.chdir(basedir)
-            os.chdir(repository)
+            try:
+                os.chdir(repository)
+            except OSError:
+                continue
             module = os.path.basename(repository).replace('.git', '')
             print module
             try: