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"""
Gearman compatibility module
"""
# Required for python2.4 backward compatibilty
# Add a module attribute called "any" which is equivalent to "any"
try:
any = any
except NameError:
def any(iterable):
"""Return True if any element of the iterable is true. If the iterable is empty, return False"""
for element in iterable:
if element:
return True
return False
# Required for python2.4 backward compatibilty
# Add a module attribute called "all" which is equivalent to "all"
try:
all = all
except NameError:
def all(iterable):
"""Return True if all elements of the iterable are true (or if the iterable is empty)"""
for element in iterable:
if not element:
return False
return True
# Required for python2.4 backward compatibilty
# Add a class called "defaultdict" which is equivalent to "collections.defaultdict"
try:
from collections import defaultdict
except ImportError:
class defaultdict(dict):
"""A pure-Python version of Python 2.5's defaultdict
taken from http://code.activestate.com/recipes/523034-emulate-collectionsdefaultdict/"""
def __init__(self, default_factory=None, * a, ** kw):
if (default_factory is not None and
not hasattr(default_factory, '__call__')):
raise TypeError('first argument must be callable')
dict.__init__(self, * a, ** kw)
self.default_factory = default_factory
def __getitem__(self, key):
try:
return dict.__getitem__(self, key)
except KeyError:
return self.__missing__(key)
def __missing__(self, key):
if self.default_factory is None:
raise KeyError(key)
self[key] = value = self.default_factory()
return value
def __reduce__(self):
if self.default_factory is None:
args = tuple()
else:
args = self.default_factory,
return type(self), args, None, None, self.items()
def copy(self):
return self.__copy__()
def __copy__(self):
return type(self)(self.default_factory, self)
def __deepcopy__(self, memo):
import copy
return type(self)(self.default_factory,
copy.deepcopy(self.items()))
def __repr__(self):
return 'defaultdict(%s, %s)' % (self.default_factory,
dict.__repr__(self))
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