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What is the purpose of class methods?
I'm teaching myself Python and my most recent lesson was that Python is not Java , and so I've just spent a while turning all my Class methods into functions.
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How to convert list of tuples to multiple lists?
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From the python docs:
zip() in conjunction with the * operator can be used to unzip a list:
Specific example:
>>> zip((1,3,5),(2,4,6))
[(1, 2), (3, 4), (5, 6)]
>>> zip(*[(1, 2), (3, 4), (5, 6)])
[(1, 3, 5), (2...
Print list without brackets in a single row
I have a list in Python
e.g.
12 Answers
12
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Multiprocessing: How to use Pool.map on a function defined in a class?
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This doesn't work in Python 2.7.2 (default, Jun 12 2011, 15:08:59) [MSC v.1500 32 bit (Intel)] on win32
– ubershmekel
Feb 18 '12 at 19:03
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Save classifier to disk in scikit-learn
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in python3, use the pickle module, which works exactly like this.
– MCSH
Nov 25 '18 at 7:22
add a comme...
What are WSGI and CGI in plain English?
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WSGI runs the Python interpreter on web server start, either as part of the web server process (embedded mode) or as a separate process (daemon mode), and loads the script into it. Each request results in a specific function in the script ...
OnInitUpdate、OnUpdate、OnDraw与OnPaint - C/C++ - 清泛网 - 专注C/C++及内核技术
OnInitUpdate、OnUpdate、OnDraw与OnPaintOnDraw，一般是收到WM_PAINT消息时调用，所以应用程序一般通过Invalidate产生WM_PAINT消息来间接调用OnDraw。当窗体无效等情况下，window也...OnDraw，一般是收到WM_PAINT消息时调用，所以应用程序一般通过In...
List vs tuple, when to use each? [duplicate]
In Python, when should you use lists and when tuples?
7 Answers
7
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Threading pool similar to the multiprocessing Pool?
...port ThreadPool
It is implemented using a dummy Process class wrapping a python thread. This thread-based Process class can be found in multiprocessing.dummy which is mentioned briefly in the docs. This dummy module supposedly provides the whole multiprocessing interface based on threads.
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Does Flask support regular expressions in its URL routing?
....randomify = randomify
self.regex = '(?:yes|no|maybe)'
def to_python(self, value):
if value == 'maybe':
if self.randomify:
return not randrange(2)
raise ValidationError()
return value == 'yes'
def to_url(self, value):
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