Which is Faster Counter Python

Question

I wanted to know which one faster counter

1)

from threading import Thread
def c(output, i):
    if i in output:
        output[i] += 1
    else:
        output[i] = 1
def build(itera):
    output = {}
    for i in itera:
        Thread(target=c, args=(output, i)).start()
    return output

def build(itera):
    output = {}
    for i in itera:
        if i in output:
            output[i] += 1
        else:
            output[i] = 1
    return output

from collections import Counter
Counter("12342")

And if any code which performs same this but is faster all all three block of code please tell me

Take a look at [this](https://stackoverflow.com/questions/2866380/how-can-i-time-a-code-segment-for-testing-performance-with-pythons-timeit) — ChaddRobertson, Apr 14 '22 at 08:04
[Which is faster?—Fabulous adventures in coding](https://ericlippert.com/2012/12/17/performance-rant/) — khelwood, Apr 14 '22 at 08:09

score 0 · Answer 1 · answered Apr 14 '22 at 08:05

0

Add this into your code, and see which runs quicker:

from datetime import datetime

start = datetime.now()

#code here

end = datetime.now()

total = end - start

print(total.total_seconds())

answered Apr 14 '22 at 08:05

Kovy Jacob

489
2
16

Zero · Accepted Answer · 2022-04-15T04:40:26.250

0

Use this to figure out which methods takes the least amount of time:

import time

start = time.time()

***
 The code you want to test out
***

end = time.time()

time_taken = round(end - start), 2
print(time_taken)

The output is in seconds.

Using timeit:

import timeit

def do_something():
  pass

timeit.timeit(f"{do_something()}")

edited Apr 15 '22 at 04:40

answered Apr 14 '22 at 08:09

Zero

1,800
1
5
16

I wanted to use timeit but i cant understand it – ishan Apr 14 '22 at 15:31
Wait I know how to do that. Btw we have the same name! High five! – Zero Apr 14 '22 at 16:23
Check the updated answer. I have included a way to use timeit. – Zero Apr 15 '22 at 04:40

Which is Faster Counter Python

2 Answers2