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Add a source parameter to warnings.warn()

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Issue #26604:

* Add a new optional source parameter to _warnings.warn() and warnings.warn()
* Modify asyncore, asyncio and _pyio modules to set the source parameter when
  logging a ResourceWarning warning
This commit is contained in:
Victor Stinner 2016-03-23 00:28:08 +01:00
parent 060f9bb602
commit e19558af1b
13 changed files with 34 additions and 19 deletions
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3
Lib/asyncio/selector_events.py
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@ -573,7 +573,8 @@ class _SelectorTransport(transports._FlowControlMixin,
if compat.PY34:
def __del__(self):
if self._sock is not None:
warnings.warn("unclosed transport %r" % self, ResourceWarning)
warnings.warn("unclosed transport %r" % self, ResourceWarning,
source=self)
self._sock.close()
def _fatal_error(self, exc, message='Fatal error on transport'):