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moved underscore for range variable, added comment renamed parameter in beg decorator added comment about double underscores Update python.html.markdown
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@ -439,7 +439,10 @@ class Human(object):
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# A class attribute. It is shared by all instances of this class
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# A class attribute. It is shared by all instances of this class
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species = "H. sapiens"
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species = "H. sapiens"
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# Basic initializer
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# Basic initializer, this is called when this class is instantiated.
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# Note that the double leading and trailing underscores denote objects
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# or attributes that are used by python but that live in user-controlled
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# namespaces. You should not invent such names on your own.
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def __init__(self, name):
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def __init__(self, name):
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# Assign the argument to the instance's name attribute
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# Assign the argument to the instance's name attribute
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self.name = name
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self.name = name
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@ -526,10 +529,12 @@ def double_numbers(iterable):
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# Note xrange is a generator that does the same thing range does.
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# Note xrange is a generator that does the same thing range does.
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# Creating a list 1-900000000 would take lot of time and space to be made.
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# Creating a list 1-900000000 would take lot of time and space to be made.
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# xrange creates an xrange generator object instead of creating the entire list like range does.
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# xrange creates an xrange generator object instead of creating the entire list like range does.
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_xrange = xrange(1, 900000000)
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# We use a trailing underscore in variable names when we want to use a name that
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# would normally collide with a python keyword
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xrange_ = xrange(1, 900000000)
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# will double all numbers until a result >=30 found
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# will double all numbers until a result >=30 found
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for i in double_numbers(_xrange):
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for i in double_numbers(xrange_):
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print(i)
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print(i)
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if i >= 30:
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if i >= 30:
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break
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break
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@ -542,10 +547,10 @@ for i in double_numbers(_xrange):
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from functools import wraps
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from functools import wraps
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def beg(_say):
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def beg(target_function):
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@wraps(_say)
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@wraps(target_function)
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def wrapper(*args, **kwargs):
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def wrapper(*args, **kwargs):
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msg, say_please = _say(*args, **kwargs)
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msg, say_please = target_function(*args, **kwargs)
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if say_please:
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if say_please:
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return "{} {}".format(msg, "Please! I am poor :(")
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return "{} {}".format(msg, "Please! I am poor :(")
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return msg
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return msg
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