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able to set None as default value on filters

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This commit is contained in:
Romain Bignon 2014-03-14 00:17:27 +01:00
commit 16742dc9aa
1 changed files with 7 additions and 4 deletions
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11
weboob/tools/browser2/filters.py
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@ -23,6 +23,9 @@ from decimal import Decimal
import re
_NO_DEFAULT = object()
class _Filter(object):
_creation_counter = 0
@ -102,7 +105,7 @@ class TableCell(_Filter):
def __init__(self, *names, **kwargs):
super(TableCell, self).__init__()
self.names = names
self.default = kwargs.pop('default', None)
self.default = kwargs.pop('default', _NO_DEFAULT)
def __call__(self, item):
for name in self.names:
@ -110,7 +113,7 @@ class TableCell(_Filter):
if idx is not None:
return item.xpath('./td[%s]' % (idx + 1))
if self.default is not None:
if self.default is not _NO_DEFAULT:
return self.default
raise KeyError('Unable to find column %s' % ' or '.join(self.names))
@ -175,7 +178,7 @@ class Regexp(Filter):
>>> f(etree.fromstring('<html><body><p>Date: <span>13/08/1988</span></p></body></html>'))
u'1988-08-13'
"""
def __init__(self, selector, pattern, template=None, flags=0, default=None):
def __init__(self, selector, pattern, template=None, flags=0, default=_NO_DEFAULT):
super(Regexp, self).__init__(selector)
self.pattern = pattern
self.regex = re.compile(pattern, flags)
@ -188,7 +191,7 @@ class Regexp(Filter):
mobj = self.regex.search(txt)
if not mobj:
if self.default is not None:
if self.default is not _NO_DEFAULT:
return self.default
else:
raise KeyError('Unable to match %s' % self.pattern)