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-rw-r--r--python/gevent/exceptions.py79
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diff --git a/python/gevent/exceptions.py b/python/gevent/exceptions.py
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--- a/python/gevent/exceptions.py
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-# -*- coding: utf-8 -*-
-# copyright 2018 gevent
-"""
-Exceptions.
-
-.. versionadded:: 1.3b1
-
-"""
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import print_function
-
-
-__all__ = [
- 'LoopExit',
-]
-
-
-class LoopExit(Exception):
- """
- Exception thrown when the hub finishes running (`gevent.hub.Hub.run`
- would return).
-
- In a normal application, this is never thrown or caught
- explicitly. The internal implementation of functions like
- :meth:`gevent.hub.Hub.join` and :func:`gevent.joinall` may catch it, but user code
- generally should not.
-
- .. caution::
- Errors in application programming can also lead to this exception being
- raised. Some examples include (but are not limited too):
-
- - greenlets deadlocking on a lock;
- - using a socket or other gevent object with native thread
- affinity from a different thread
-
- """
-
- def __repr__(self):
- # pylint:disable=unsubscriptable-object
- if len(self.args) == 3: # From the hub
- import pprint
- return "%s\n\tHub: %s\n\tHandles:\n%s" % (
- self.args[0], self.args[1],
- pprint.pformat(self.args[2])
- )
- return Exception.__repr__(self)
-
- def __str__(self):
- return repr(self)
-
-class BlockingSwitchOutError(AssertionError):
- """
- Raised when a gevent synchronous function is called from a
- low-level event loop callback.
-
- This is usually a programming error.
- """
-
-
-class InvalidSwitchError(AssertionError):
- """
- Raised when the event loop returns control to a greenlet in an
- unexpected way.
-
- This is usually a bug in gevent, greenlet, or the event loop.
- """
-
-class ConcurrentObjectUseError(AssertionError):
- """
- Raised when an object is used (waited on) by two greenlets
- independently, meaning the object was entered into a blocking
- state by one greenlet and then another while still blocking in the
- first one.
-
- This is usually a programming error.
-
- .. seealso:: `gevent.socket.wait`
- """