List append VS. += getting UnboundLocalError in inner function
97856
Python: Difference between list.extend and list.__iadd__
131806
2D list has weird behavor when trying to modify a single value
126217
What's the purpose of the + (pos) unary operator in Python?
71424
Weird behavior: Lambda inside list comprehension
151963
How can I pass my locals and access the variables directly from another function?
121365
Why results of map() and list comprehension are different?
142576
Why does [1].append(2) evaluate to None instead of [1,2]?
67678
When is "i += x" different from "i = i + x" in Python?
100152
Can not increment global variable from function in python
67086
Python: Appending items to lists by iterating through list of lists
41064
What is context in _.each(list, iterator, [context])?
139014
How to efficiently Append a result of an operation on each element of a list to itself
149808
How can I add to List data structures?
6233
Why does list(my_list) modify the object?
11563
Appending to range function
8045
Python List vs. Array - when to use?
1462
UnboundLocalError on local variable when reassigned after first use