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What is the difference between NaN and None?
...y opinion, to be the best decision given the state of affairs in NumPy and Python in general. The special value NaN (Not-A-Number) is used everywhere as the NA value, and there are API functions isnull and notnull which can be used across the dtypes to detect NA values.
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Thus, I have chosen t...
How do I disable log messages from the Requests library?
By default, the Requests python library writes log messages to the console, along the lines of:
12 Answers
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App Inventor 2 中文网 · 项目指南
...0 App Inventor 2 Python C/C++ 简介 Scratch是麻省理工学院(MIT)面向全球青少年发布的一种...
0.1 float is greater than 0.1 double. I expected it to be false [duplicate]
... greater.
Here's what the double precision value gets rounded to (using a Python interpreter):
>>> "%.55f" % 0.1
'0.1000000000000000055511151231257827021181583404541015625'
And here's the single precision value:
>>> "%.55f" % numpy.float32("0.1")
'0.100000001490116119384765625...
How to get the last day of the month?
Is there a way using Python's standard library to easily determine (i.e. one function call) the last day of a given month?
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What is stdClass in PHP?
...ass is PHP's generic empty class, kind of like Object in Java or object in Python (Edit: but not actually used as universal base class; thanks @Ciaran for pointing this out).
It is useful for anonymous objects, dynamic properties, etc.
An easy way to consider the StdClass is as an alternative to ...
partial string formatting
...test and most readable solution, but also describes the coder's intention. Python3 version: python from functool import partial s = "{foo} {bar}".format s_foo = partial(s, foo="FOO") print(s_foo(bar="BAR")) # FOO BAR print(s(foo="FOO", bar="BAR")) # FOO BAR
– Paul Brown
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class method generates “TypeError: … got multiple values for keyword argument …”
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The problem is that the first argument passed to class methods in python is always a copy of the class instance on which the method is called, typically labelled self. If the class is declared thus:
class foo(object):
def foodo(self, thing=None, thong='not underwear'):
print thing if...
How to check if a number is between two values?
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This is my preference, since it's closer to python's min < testval < max syntax
– daveruinseverything
Feb 15 '17 at 22:52
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Changing Vim indentation behavior by file type
...entation behavior of Vim based on the file type? For instance, if I open a Python file it should indent with 2 spaces, but if I open a Powershell script it should use 4 spaces.
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