In python, as far as I know, there are at least 3 to 4 ways to create and initialize lists of a given size: Simple loop with append: my_list = [] for i in range(50): my_list.append(0) Simple ...

Apr 16, 2024 · 826 I want to create a series of lists, all of varying lengths. Each list will contain the same element e, repeated n times (where n = length of the list). How do I create the lists, without using a …

I have a Python list variable that contains strings. Is there a function that can convert all the strings in one pass to lowercase and vice versa, uppercase?

With Python 2.7, I can get dictionary keys, values, or items as a list:

How can I collect the results of a repeated calculation in a list, dictionary etc. (or make a copy of a list with each element modified)? (3 answers)

What would be your preferred way to concatenate strings from a sequence such that between every two consecutive pairs a comma is added. That is, how do you map, for instance, ['a', 'b', 'c'] to 'a,...

13 There are several methods to convert string numbers in a list to integers. In Python 2.x you can use the function:

Oct 21, 2011 · How to convert comma-delimited string to list in Python? Asked 14 years, 1 month ago Modified 5 years, 6 months ago Viewed 533k times

May 20, 2014 · I am pulling a subset of data from a column based on conditions in another column being met. I can get the correct values back but it is in pandas.core.frame.DataFrame. How do I convert …

How do I create a list of numbers between two values? For example, a list between 11 and 16: [11, 12, 13, 14, 15, 16]