大约有 5,685 项符合查询结果(耗时:0.0099秒) [XML]

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How should I organize Python source code? [closed]

I'm getting started with Python (it's high time I give it a shot), and I'm looking for some best practices. 2 Answers ...
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Pairwise crossproduct in Python [duplicate]

...the list of cross product pairs from a list of arbitrarily long lists in Python? 3 Answers ...
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python ? (conditional/ternary) operator for assignments [duplicate]

... Python has such an operator: variable = something if condition else something_else Alternatively, although not recommended (see @karadoc's comment): variable = (condition and something) or something_else ...
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Python constructor and default value [duplicate]

... This is considered the Pythonic way, but I prefer krousey's way because "special cases aren't special enough". – Karl Knechtel Jan 30 '11 at 9:44 ...
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Complex numbers usage in python [closed]

I'm a math newbie. Now I'm getting deeper into Python data types. I can't understand how to use a complex number. Please give me examples of usage of complex numbers in Python. ...
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Why doesn't calling a Python string method do anything unless you assign its output?

... This is because strings are immutable in Python. Which means that X.replace("hello","goodbye") returns a copy of X with replacements made. Because of that you need replace this line: X.replace("hello", "goodbye") with this line: X = X.replace("hello", "goodbye"...
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How do I write a Python dictionary to a csv file? [duplicate]

...want to check out the with statement for opening files. It's not only more pythonic and readable but handles closing for you, even when exceptions occur. Example with these changes made: import csv my_dict = {"test": 1, "testing": 2} with open('mycsvfile.csv', 'wb') as f: # Just use 'w' mode in...
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Calling filter returns [duplicate]

I am learning the concept of filters in Python. I am running a simple code like this. 2 Answers ...
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Python if-else short-hand [duplicate]

I want to do the following in python: 2 Answers 2 ...
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JSONDecodeError: Expecting value: line 1 column 1 (char 0)

...re is no need to use simplejson library, the same library is included with Python as the json module. There is no need to decode a response from UTF8 to unicode, the simplejson / json .loads() method can handle UTF8 encoded data natively. pycurl has a very archaic API. Unless you have a specific req...