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python Programming Glossary: comprehensionRemove items from a list while iterating in Python http://stackoverflow.com/questions/1207406/remove-items-from-a-list-while-iterating-in-python python iteration share improve this question A list comprehension is best for this kind of loop. somelist x for x in somelist..
Python List Comprehension Vs. Map http://stackoverflow.com/questions/1247486/python-list-comprehension-vs-map Vs. Map Is there a reason to prefer using map over list comprehension or vice versa Is one generally more effecient or generally considered.. considered more pythonic than the other python map list comprehension share improve this question map may be microscopically faster.. but using the same function in map and a listcomp . List comprehensions may be faster in other cases and most not all pythonistas consider..
Should you always favor xrange() over range()? http://stackoverflow.com/questions/135041/should-you-always-favor-xrange-over-range 20 e range 20 As you can see when used in a for loop or comprehension or where already wrapped with list range is left unchanged...
http://stackoverflow.com/questions/1959744/python-list-problem to mutable objects. Their recommended workaround is a list comprehension s 0 3 for i in range 2 s 0 0 0 0 0 0 s 0 1 1 s 0 1 0 0 0 0 ..
The Python yield keyword explained http://stackoverflow.com/questions/231767/the-python-yield-keyword-explained print i 1 2 3 Mylist is an iterable. When you use a list comprehension you create a list and so an iterable mylist x x for x in range..
Flattening a shallow list in Python http://stackoverflow.com/questions/406121/flattening-a-shallow-list-in-python I was hoping to flatten a shallow list with a nested list comprehension like this image for image in menuitem.image_set.all for menuitem.. is Is there a simple way to flatten this list with a list comprehension or failing that what would you all consider to be the best way.. This is the correct syntax for a nested list comprehension Brilliant summary dF image for mi in list_of_menuitems for image..
Generator Expressions vs. List Comprehension http://stackoverflow.com/questions/47789/generator-expressions-vs-list-comprehension When should you use generator expressions vs. list comprehensions in Python and vice versa # Generator expression x 2 for x in.. versa # Generator expression x 2 for x in range 256 # List comprehension x 2 for x in range 256 python list comprehension generator.. # List comprehension x 2 for x in range 256 python list comprehension generator share improve this question John's answer is good..
Is it Pythonic to use list comprehensions for just side effects? http://stackoverflow.com/questions/5753597/is-it-pythonic-to-use-list-comprehensions-for-just-side-effects it Pythonic to use list comprehensions for just side effects Think about a function that I'm calling.. ...side effects... return y Now is it Pythonic to use list comprehensions to call this func fun_with_side_effects x for x in y if ...conditions..... x Which is better and why Thanks. python list comprehension share improve this question It is very anti Pythonic to..
http://stackoverflow.com/questions/890128/python-lambda-why this particular case you could do the same thing as a list comprehension mult3 x for x in 1 2 3 4 5 6 7 8 9 if x 3 0 or even as range.. values from other functions where you can't use a list comprehension and a lambda function may be the shortest way to write something..
list comprehension without [ ], Python http://stackoverflow.com/questions/9060653/list-comprehension-without-python comprehension without Python Here is the thing join a list ''.join str _.. 's argument is str _ for _ in xrange 10 and it's a list comprehension. Look at this ''.join str _ for _ in xrange 10 '0123456789'.. 10 also produce a list or an iteratable python list comprehension share improve this question ''.join str _ for _ in xrange..
Making a flat list out of list of lists in Python [duplicate] http://stackoverflow.com/questions/952914/making-a-flat-list-out-of-list-of-lists-in-python of x for x from 1 to L excluded i.e. I L 2 2 . The list comprehension just generates one list once and copies each item over from..
When`starmap` could be preferred over `List Comprehension` http://stackoverflow.com/questions/10448486/whenstarmap-could-be-preferred-over-list-comprehension could be preferred over `List Comprehension` While answering the question Clunky calculation of differences.. beautiful way I came up with two solutions one with List Comprehension and other using itertools.starmap . To me list comprehension.. My Question is when starmap could be preferred over List Comprehension Note If its a matter of Style then it definitely contradicts..
Double Iteration in List Comprehension http://stackoverflow.com/questions/1198777/double-iteration-in-list-comprehension Iteration in List Comprehension In Python you can have multiple iterators in a list comprehension..
Python List Comprehension Vs. Map http://stackoverflow.com/questions/1247486/python-list-comprehension-vs-map List Comprehension Vs. Map Is there a reason to prefer using map over list comprehension..
Python Dictionary Comprehension http://stackoverflow.com/questions/14507591/python-dictionary-comprehension Dictionary Comprehension Is it possible to create a dictionary comprehension in Python..
Python: Advanced Nested List Comprehension Syntax http://stackoverflow.com/questions/3766711/python-advanced-nested-list-comprehension-syntax Advanced Nested List Comprehension Syntax I was playing around with list comprehensions to get..
Split by comma and strip whitespace in Python http://stackoverflow.com/questions/4071396/split-by-comma-and-strip-whitespace-in-python for x in my_string.split ' ' See Python docs on List Comprehension A good 2 second explanation of list comprehension. share improve..
Comprehension for flattening a sequence of sequences? http://stackoverflow.com/questions/457215/comprehension-for-flattening-a-sequence-of-sequences for flattening a sequence of sequences If I have sequence of..
Generator Expressions vs. List Comprehension http://stackoverflow.com/questions/47789/generator-expressions-vs-list-comprehension Expressions vs. List Comprehension When should you use generator expressions vs. list comprehensions..
How to read aloud Python List Comprehensions? http://stackoverflow.com/questions/9061760/how-to-read-aloud-python-list-comprehensions to read aloud Python List Comprehensions My question is about Python List Comprehension readability... List Comprehensions My question is about Python List Comprehension readability. When I come across code with complex nested list.. I am struggling with How would you read the following List Comprehensions aloud From another question in Stack Overflow x for b in a..
Making a flat list out of list of lists in Python [duplicate] http://stackoverflow.com/questions/952914/making-a-flat-list-out-of-list-of-lists-in-python Possible Duplicates Flattening a shallow list in Python Comprehension for flattening a sequence of sequences I wonder whether there..
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