Function lazy has a Cognitive Complexity of 52 (exceeds 5 allowed). Consider refactoring.

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def lazy(func, *resultclasses):
    """
    Turns any callable into a lazy evaluated callable. You need to give result
    classes or types -- at least one is needed so that the automatic forcing of
    the lazy evaluation code is triggered. Results are not memoized; the

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File lazy.py has 317 lines of code (exceeds 250 allowed). Consider refactoring.

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#
# Copyright 2013, Junta de Andalucia
# http://www.juntadeandalucia.es/
#
# Authors:

Function total_ordering has a Cognitive Complexity of 15 (exceeds 5 allowed). Consider refactoring.

Open

    def total_ordering(cls):
        """Class decorator that fills in missing ordering methods"""
        convert = {
            '__lt__': [('__gt__', lambda self, other: not (self < other or 
                                                           self == other)),

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Consider simplifying this complex logical expression.

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if sys.version_info >= (2, 7, 2):
    from functools import total_ordering
else:
    # For Python < 2.7.2. total_ordering in versions prior to 2.7.2 is buggy.
    # See http://bugs.python.org/issue10042 for details. For these versions use

Function allow_lazy has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.

Open

def allow_lazy(func, *resultclasses):
    """
    A decorator that allows a function to be called with one or more lazy
    arguments. If none of the args are lazy, the function is evaluated
    immediately, otherwise a __proxy__ is returned that will evaluate the

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