Itertools: `for a in b: for c in b`
1319
Flattening a shallow list in Python
103253
Operate on several lists to create one list
65225
Iterating over every two elements in a list
10746
What is the most "pythonic" way to iterate over a list in chunks?
89684
How to append the contents of a list at the end of the other list?
131414
How to get a list of pairs into the form $(x,y)$?
33874
How to iterate through two lists in parallel?
130425
Var[A+B+C] = Var [A] + Var [B] + Var [C]
1058
Get the cartesian product of a series of lists?
80790
Python idiom to chain (flatten) an infinite iterable of finite iterables?
6515
Using while in list comprehension or generator expressions
94458
how to interleaving lists
42394
Join a list with {6, 6, 2} dimensions with a list {6, 6} dimensions
45898
Iterate a list as pair (current, next) in Python
158708
Counting the adjacent swaps required to convert one permutation into another
63017
How does a for loop work, specifically for(;;)?
75464
Ruby: How to iterate over a range, but in set increments?