Let’s say I have a list of ints: listOfNumbers = range(100) And I want to return a list of the elements that meet a certain condition, say: def meetsCondition(element): return bool(element != 0 and element % 7 == 0) What’s a Pythonic way to return a sub-list of element in a list for which meetsCondition(element) … Read more
Is there any way in Python, wherein I can sort a list by its frequency?
I have a set of lists that contain both strings and float numbers, such as:
So stdin returns a string of text into a list, and multiple lines of text are all list elements.
How do you split them all into single words?
Is there anyway to make a python list iterator to go backwards?
I have a very large collection of (p, q) tuples that I would like to convert into a dictionary of lists where the first item in each tuple is a key that indexes a list that contains q.
I have an array like this:
What is the fastest and most elegant way of doing list of lists from two lists?
I tried to create this code to input an m by n matrix. I intended to input [[1,2,3],[4,5,6]] but the code yields [[4,5,6],[4,5,6]. Same things happen when I input other m by n matrix, the code yields an m by n matrix whose rows are identical.
Is this a valid python behavior? I would think that the end result should be [0,0,0] and the id() function should return identical values each iteration. How to make it pythonic, and not use enumerate or range(len(bar))?