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Explicitly check if an object is a class is pydispatch.

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* This is to fix a disagreement in between CPython and PyPy.
* https://gist.github.com/4220533
This commit is contained in:
joehillen 2012-12-12 08:42:18 -08:00
parent 0bc5e4f9ec
commit 8778af5c5b
1 changed files with 4 additions and 2 deletions
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6
scrapy/xlib/pydispatch/robustapply.py
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@ -6,6 +6,8 @@ and subset the given arguments to match only
those which are acceptable.
"""
import inspect
def function( receiver ):
"""Get function-like callable object for given receiver
@ -14,7 +16,7 @@ def function( receiver ):
If fromMethod is true, then the callable already
has its first argument bound
"""
if hasattr(receiver, '__call__'):
if inspect.isclass(receiver) and hasattr(receiver, '__call__'):
# receiver is a class instance; assume it is callable.
# Reassign receiver to the actual method that will be called.
if hasattr( receiver.__call__, 'im_func') or hasattr( receiver.__call__, 'im_code'):
@ -46,4 +48,4 @@ def robustApply(receiver, *arguments, **named):
del named[arg]
return receiver(*arguments, **named)