parameters: (self)
return_statement: return len(list(self.iterkeys()))
docstring: Return a count of messages in the mailbox.
docstring_summary: Return a count of messages in the mailbox.
docstring_tokens: Return a count of messages in the mailbox .
function: def __len__(self):
          """Return a count of messages in the mailbox."""
          return len(list(self.iterkeys()))
function_tokens: def __len__ ( self ) : return len ( list ( self . iterkeys ( ) ) )