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Why are Python lambdas useful? [closed]

...ions to do stuff. Example: mult3 = filter(lambda x: x % 3 == 0, [1, 2, 3, 4, 5, 6, 7, 8, 9]) sets mult3 to [3, 6, 9], those elements of the original list that are multiples of 3. This is shorter (and, one could argue, clearer) than def filterfunc(x): return x % 3 == 0 mult3 = filter(filterfu...
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Is False == 0 and True == 1 an implementation detail or is it guaranteed by the language?

...y considered as integers in Python 2.6 and 3. So you're safe until Python 4 comes along. ;-) share | improve this answer | follow | ...
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How to make my layout able to scroll down?

... CristianCristian 188k5858 gold badges348348 silver badges260260 bronze badges 14 ...
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Extension method and dynamic object

....First());. – AVee Jun 18 '19 at 13:46 add a comment  |  ...
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How to write binary data to stdout in python 3?

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Python (and Python C API): __new__ versus __init__

... >>> x = (1, 2) >>> x (1, 2) >>> x.__init__([3, 4]) >>> x # tuple.__init__ does nothing (1, 2) >>> y = [1, 2] >>> y [1, 2] >>> y.__init__([3, 4]) >>> y # list.__init__ reinitialises the object [3, 4] As to why they're separate...
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Method to Add new or update existing item in Dictionary

... 248 Could there be any problem if i replace Method-1 by Method-2? No, just use map[key] = val...
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How do I find the last occurrence of a substring in an NSString?

... answered Mar 13 '10 at 21:46 outisoutis 66.3k1717 gold badges125125 silver badges191191 bronze badges ...
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How to write PNG image to string with the PIL?

...| edited Dec 23 '18 at 15:46 answered Mar 14 '09 at 17:21 s...
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Split string using a newline delimiter with Python

... | edited Apr 14 at 18:28 phoenix 3,20611 gold badge2727 silver badges3131 bronze badges answ...