list-comprehension tag

5 questions


1 answers
103 views
0
How does Python initialize a list to zero by a certain length?

In C/C++, int myarr[100] = {};If you write it like this, all 100 elements have been initialized to zeroIn the Python list, mylist = [0 for i in range(100)]Is this the most Python way to write a for se...


1 answers
72 views
0
Comparison of map and list compression

Is there any particular rule for when to use map() and when to use list embedding?Which of the two is the more efficient and Python way?


3 answers
132 views
0
Questions about Python set

aList = [1, 2, [1 ,2], 'c', [1, 2] ]I know that the set function removes duplicate values from the listNested list, and if it's a mixed list of characters When using the set function, an error was pri...


1 answers
86 views
0
Python List Compensation. Here'

a = ['1', 'a', '3', 'c'], ['e', 't', 'h', '3'], ['u', 'y', 'p', '2']b = ['u', 'y', 'p', '2'], ['4', 's', 'a', 'x'], ['8', '9', 'y', 'w']q = [w for w, s in zip(a, b) if 'a' not in (w and s)]e = [s for ...


1 answers
139 views
0
Python list compliance and for statement questions

0 [([, SS, 0, 1), (golf, NNG, 1, 2), (), SS, 3, 1)...1 [(Golf, NNG, 0, 2), (Games, XSN, 2, 1), (,, SP, 3, 1...)2 [(Golinis, NNP, 0, 4), (JX, 4, 1), (Sudden growth, NNG, ...)]3 [(<, SS, 0, 1), (Summ...


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