![]() It doesn’t raise an error ifĪny of the attributes mentioned in assigned and updated are missing _wrapped_ attribute on what it decorates. This is Python 3.2’s functools.wraps() decorator. wraps ( wrapped, assigned=functools.WRAPPER_ASSIGNMENTS, updated=functools.WRAPPER_UPDATES ) ¶ (In fact, it is justĪliased to object.) six. This interacts badly with subclasses that override Way to do this would be to simply alias next to _next_. The intention is that it be subclassedĪnd subclasses provide a _next_ method. ![]() Iterator ¶Ī class for making portable iterators. In Python 3, unbound methodsĭo not exist and this wrapper will simply return func. Return an unbound method object wrapping func. This wrapper exists is that on Python 2, the MethodType constructor On both Python 2Īnd 3, this will return a types.MethodType object. Return a method object wrapping func and bound to obj. This replacesĭict.viewitems() on Python 2.7 and ems() on This replacesĭict.viewvalues() on Python 2.7 and dict.values() on This replacesĭict.viewkeys() on Python 2.7 and dict.keys() on Kwargs are passed through to the underlying method. Intended for use with multi-valued dictionaries like Werkzeug’s. No builtin Python mapping type has such a method this method is iterlists ( dictionary, **kwargs ) ¶Ĭalls erlists() on Python 2 and dictionary.lists() on kwargs are passed through to the underlying method. This replacesĭeritems() on Python 2 and ems() on Returns an iterator over dictionary’s items. This replacesĭervalues() on Python 2 and dictionary.values() on Returns an iterator over dictionary’s values. This replacesĭerkeys() on Python 2 and dictionary.keys() on Returns an iterator over dictionary’s keys. So using six’s version is only necessary when supporting Python 3.0 or 3.1. Note callable has returned in Python 3.2, Python 2.6 and above have aīuiltin next function, so six’s version is only necessary for Python 2.5Ĭheck if obj can be called. This is a replacement for calling it.next() Python 2.6+ and func.func_globals on Python 2.5. This is equivalent toįunc._defaults_ on Python 2.6+ and func.func_defaults on PythonĢ.5. Get the defaults tuple associated with func. This is equivalent toįunc._code_ on Python 2.6+ and func.func_code on Python 2.5. Get the code object associated with func. To func._closure_ on Python 2.6+ and func.func_closure on Python Get the closure (list of cells) associated with func. Get the function out of method object meth. Sys.maxint in Python 3 because its integer type has no limitsįrom six import get_unbound_function class X ( object ): def method ( self ): pass method_function = get_unbound_function ( X. Note, this is temptingly similar to, but not the same as This is equivalent to sys.maxsize in Python 2.6 and later The maximum size of a container like list or dict. Python 2.6 and 2.7 include bytes as aīuiltin alias of str, so six’s version is only necessary for Python 2.5 This is str in Python 2 andīytes in Python 3. Type for representing (Unicode) textual data. Types.ClassType and new-style type classes. _types are mostly useful as the second argument to isinstance or So if you want to write 2 variable as a CSV row you can put them in a tuple or list: writer.writerows((variable1,2))Īlso from itertools you can import zip_longest as a more flexible function which you can use it on iterators with different size.Six provides constants that may differ between Python versions. In this case since zip's arguments must support iteration you can not use 2 as its argument. Here is a benchmark between zip in Python 2 and 3 and izip in Python 2: ![]() The zip implementation is almost completely copy-pasted from the old izip, just with a few names changed and pickle support added. In Python 3 the built-in zip does the same job as itertools.izip in 2.X(returns an iterator instead of a list).
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