Fix Issue "OSError: Too Many Open Files (#1072)" (#1118)

Close the file descriptor "self.oldstdout_fno" after line 24, since it is no more used. Leaving it opened will cause the Too Many Open Files error when the _enter_ function is called many times.

Author: dipietrantonio

pythonFiles/completion.py

@@ -22,6 +22,7 @@ def __enter__(self):
     def __exit__(self, exc_type, exc_value, traceback):
         self._new_stdout.flush()
         os.dup2(self.oldstdout_fno, 1)
+        os.close(self.oldstdout_fno)
 
 class JediCompletion(object):
     basic_types = {