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- # -*- coding: utf-8 -*-
- """Adapt readline completer interface to make ZMQ request."""
- # Copyright (c) IPython Development Team.
- # Distributed under the terms of the Modified BSD License.
- try:
- from queue import Empty # Py 3
- except ImportError:
- from Queue import Empty # Py 2
- from traitlets.config import Configurable
- from traitlets import Float
- class ZMQCompleter(Configurable):
- """Client-side completion machinery.
- How it works: self.complete will be called multiple times, with
- state=0,1,2,... When state=0 it should compute ALL the completion matches,
- and then return them for each value of state."""
- timeout = Float(5.0, config=True, help='timeout before completion abort')
-
- def __init__(self, shell, client, config=None):
- super(ZMQCompleter,self).__init__(config=config)
- self.shell = shell
- self.client = client
- self.matches = []
-
- def complete_request(self, code, cursor_pos):
- # send completion request to kernel
- # Give the kernel up to 5s to respond
- msg_id = self.client.complete(
- code=code,
- cursor_pos=cursor_pos,
- )
-
- msg = self.client.shell_channel.get_msg(timeout=self.timeout)
- if msg['parent_header']['msg_id'] == msg_id:
- return msg['content']
- return {'matches': [], 'cursor_start': 0, 'cursor_end': 0,
- 'metadata': {}, 'status': 'ok'}
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