Consider using f-strings PYL-C0209
Performance
Minor
6 months ago
—
6 months old
Formatting a regular string which could be a f-string
248 if warnings_remaining != 0:
249 warnings_remaining -= 1
250 print(
251 "You've already guessed that letter. You have %d warning left."252 % warnings_remaining
253 )
254 else:Formatting a regular string which could be a f-string
277
278
279 if guesses_remaining == 0:
280 print("Sorry, you ran out of guesses. The word was %s." % secret_word)281
282
283def hangman_with_hints(secret_word):
Description
f-strings are the fastest way to format strings as compared to the following methods:
- using format specifiers
% - using
format() - using
str.join - using
+operator to concatinate string - using
Template.substitute
Bad practice
Some less preferred ways to format strings are the following:
from string import Template
menu = ('eggs', 'spam', 42.4)
old_order = "%s and %s: %.2f ¤" % menu # [consider-using-f-string]
beginner_order = menu[0] + " and " + menu[1] + ": " + str(menu[2]) + " ¤"
joined_order = " and ".join(menu[:2])
format_order = "{} and {}: {:0.2f} ¤".format(menu[0], menu[1], menu[2])
named_format_order = "{eggs} and {spam}: {price:0.2f} ¤".format(eggs=menu[0], spam=menu[1], price=menu[2])
template_order = Template('$eggs and $spam: $price ¤').substitute(eggs=menu[0], spam=menu[1], price=menu[2])
Recommended
Consider using f-strings as shown below:
menu = ('eggs', 'spam', 42.4)
f_string_order = f"{menu[0]} and {menu[1]}: {menu[2]:0.2f} ¤"