Apr 4, 2009 · Closed 9 years ago. Is the a short syntax for joining a list of lists into a single list ( or iterator) in python? For example I have a list as follows and I want to iterate over a,b and c.

If your list of lists comes from a nested list comprehension, the problem can be solved more simply/directly by fixing the comprehension; please see How can I get a flat result from a list …

Caveats Linear time-complexity in list length An index call checks every element of the list in order, until it finds a match. If the list is long, and if there is no guarantee that the value will be near the …

First, I strongly recommend that you rename your variable list to something else. list is the name of the built-in list constructor, and you're hiding its normal function. I will rename list to a in the following. …

To split on other delimiters, see Split a string by a delimiter in python. To split into individual characters, see How do I split a string into a list of characters?.

4149 new_list = my_list doesn't actually create a second list. The assignment just copies the reference to the list, not the actual list, so both new_list and my_list refer to the same list after the assignment. …

Feb 2, 2014 · Python’s lists are variable-length arrays, not Lisp-style linked lists. The implementation uses a contiguous array of references to other objects, and keeps a pointer to this array.

Checking if type == list in python [duplicate] Asked 11 years, 2 months ago Modified 3 years, 4 months ago Viewed 644k times

Oct 15, 2012 · 1538 First declare your list properly, separated by commas. You can get the unique values by converting the list to a set.

Apr 22, 2013 · The second action taken was to revert the accepted answer to its state before it was partway modified to address "determine if all elements in one list are in a second list".