Zum Inhalt

To avoid

How python imports modules

Initializing expensive objects on module level

If def calculate is needed in another file and imported there, load data is run when the function is imported. Best avoided by putting all logic into functions.

# calculate.py

from time import sleep

def load_data(count: int = 3):
    return []

data = load_data(2)

def transform():
    return (entry['id'] for entry in data)

Import *

This is a pattern should be avoided because:

  • It imports everything when most of the time just certain objects are needed
  • It is not transparent what objects were imported
from datetime import *

Letztes Update: June 27, 2022
Erstellt: June 27, 2022