Revert "Fix past.translation on read-only file systems"

Author: jmadler

src/past/translation/__init__.py

@@ -402,9 +402,9 @@ def load_module(self, fullname):
                         code = compile(source, self.pathname, 'exec')
 
                         dirname = os.path.dirname(cachename)
+                        if not os.path.exists(dirname):
+                            os.makedirs(dirname)
                         try:
-                            if not os.path.exists(dirname):
-                                os.makedirs(dirname)
                             with open(cachename, 'wb') as f:
                                 data = marshal.dumps(code)
                                 f.write(data)