A syntactic construct which provides a concise way to create lists in a style similar to the mathematical set-builder notation.
Both list comprehensions and map-calculations should -- at least in theory -- be relatively easy to parallelize: each calculation inside …
python parallel-processing list-comprehensionI have a line like this: filter(lambda x: x == 1, [1, 1, 2]) Pylint is showing a warning: W: 3: Used builtin function 'filter' …
python list-comprehension pylintGiven a flat list of simple dictionaries lst = [{'key1': 1}, {'key2': 2}, {'key3': 3}] I'd like to find the dict …
python python-3.x list-comprehension argument-unpackingI want to unpack the tuples I create by doing the following so he the result is just one simple …
python tuples list-comprehension flattenI see this kind of thing sometimes: (k for k in (j for j in (i for i in xrange(10)))) …
python list-comprehension generator-expressionThe CoffeeScript docs state that list comprehensions should be able to do the select/filter operations: They should be able …
list-comprehension coffeescriptWhen I need to add several identical items to the list I use list.extend: a = ['a', 'b', 'c'] a.…
python list list-comprehensionIf I have sequence of sequences (maybe a list of tuples) I can use itertools.chain() to flatten it. But …
python sequences list-comprehensionI can use if and for in list comprehensions/generator expressions as list(i for i in range(100) if i*…
python list-comprehension recipe generator-expressionHow do you access other class variables from a list comprehension within the class definition? The following works in Python 2 …
python python-3.x scope list-comprehension python-internals