How to speed up python loops?

Question

I need to interact with a list of 5000 items and the loop takes around 5 minutes to cover the list.

Answer 1

can we see your code?

Answer 2

List comprehesions are a bit faster than loops, maybe try constructing those, instead of using regular loops.

Answer 3

Without showing your code we can only give you general answers. A thing you should consider is using PYPY which is much faster than CPython as it uses a JIT compiler:
https://pypy.org/

Answer 4

import pandas as pd
data = pd.read(SQL, cnxn)

df.pd.DataFrame(data)
for i in df:
s = df[df['Item'] == i
a = s.pivot(index='Item', columns='Date', values='Quantity')

I'm making a plot for each item and saving it into an specific folder