12.1. Callback¶
12.1.1. Rationale¶
EN: Callback Design
PL:
12.1.2. Implementation¶
from http import HTTPStatus
import requests
def noop(*arg, **kwargs):
pass
def http_request(url, on_success=noop, on_error=noop):
result = requests.get(url)
if result.status_code == HTTPStatus.OK:
on_success(result)
else:
on_error(result)
def success(result):
print('Success')
def error(result):
print('Error')
http_request(
url='http://python.astrotech.io',
on_success=success,
on_error=error,
)