Apr 8, 2010 · Counter in Python 2 was a little on the slow side, yes. It uses C-optimised code to do the counting in ...

c = Counter(item.property for item in something if item.has_some_property) It uses a generator expression instead of open-coding the loop. Edit: Missed your no-list-comprehensions paragraph. I still think this is the way to actually use Counter in practice. If you have too much code to put into a generator expression or list comprehension, it ...

Sep 12, 2019 · (For example, you can compare a list of locations by their temperature, and use a multiset to look up all locations at a specific temperature or temperature range, while getting the fast insertions of a set.) Counter merely counts repetitions; distinct values are lost. That's much less useful--it's nothing more than a wrapped dict.

Jan 6, 2014 · Other than doing list comprehensions of reversed list comprehension, is there a pythonic way to sort Counter by value? If so, it is faster than this: >>> from collections import Counter &...

In my example code below, is the counter = 0 really required, or is there a better, more Python, way to get access to a loop counter? I saw a few PEPs related to loop counters, but they were either deferred or rejected (PEP 212 and PEP 281). This is a simplified example of my problem.

Jun 10, 2018 · This is the python way of adding an index to a for loop. Some Alternatives. If your goal is to do something with the list elements by n's, here are some alternative solutions that don't necessarily add an index to your loop, but will get you where you need to be: Array Slicing. You could also use an array slice with a step

Nov 11, 2015 · How would I count the number of occurrences of some value in a multidimensional array made with nested lists? as in, when looking for 'foobar' in the following list: list = [['foobar', 'a', 'b'], ...

Dec 24, 2019 · Try the following: var_counter = 0 user_input = 'cmpny' for usr in user_input: var_counter +=1 tempVar = "var_counter_"+str(var_counter) globals()[tempVar] = usr

Dec 15, 2018 · Starting in Python 3.10, Counter is given a total() function which provides the sum of the counts: from collections import Counter Counter([1,2,3,4,5,1,2,1,6]).total() # 9 Share

You could also use enumerate's optional start parameter to start enumerating with 1 instead of 0, though then I'd use the OP's name count instead of idx. – Stefan Pochmann Commented Oct 7, 2017 at 12:36