How To Check If A String Fullfil With Multiple Regex And Capture That Portion That Match?
What I want I'm working with a django form and it takes a password input. I need to pass the input value for multiple regexes, which will test if: at least one character is a lowe
Solution 1:
While you can use a regex here, I would stick to normal Python:
from string import ascii_uppercase, ascii_lowercase, digits, punctuation
from pprint import pprint
character_classes = {'lowercase letter': ascii_lowercase,
'uppercase letter': ascii_uppercase,
'number': digits,
'special character': punctuation # change this if your idea of "special" characters is different
}
minimum_length = 8defcheck_password(password):
long_enough = len(password) >= minimum_length
ifnot long_enough:
print(f'Your password needs to be at least {minimum_length} characters long!')
result = [{class_name: char in char_classfor class_name, char_classin character_classes.items()} for char in password]
result_transposed = {class_name: [row[class_name] for row in result] for class_name in character_classes}
for char_class, values in result_transposed.items():
ifnotany(values):
# Instead of a print, you should raise a ValidationError hereprint(f'Your password needs to have at least one {char_class}!')
return result_transposed
check_password('12j3dSe')
Output:
Your password needs to be at least 8 characters long!
Your password needs to have at least one special character!
This allows you to modify the password requirements in a more flexible fashion, and in case you ever want to say "you need X of this character class"...
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