Difference between lower() and casefold() in Python
Below are some more differences between the lower() method and casefold() method.
|
lower() Method |
casefold() Method |
|---|---|
| It converts only ASCII characters to lowercase. | It converts both ASCII and non-ASCII characters to lowercase. |
| It is suitable for only case-insensitive string comparison. | It is suitable for both case-sensitive and case-insensitive string comparisons. |
| It provides high performance than casefold(). | It works slower than lower(). |
Difference between casefold() and lower() in Python
In this article, we will learn the differences between casefold() and lower() in Python. The string lower() is an in-built method in Python language. It converts all uppercase letters in a string into lowercase and then returns the string. Whereas casefold() method is an advanced version of lower() method, it converts the uppercase letter to lowercase including some special characters which are not specified in the ASCII table for example ‘ß’ which is a German letter and its lowercase letter is ‘ss’.
Syntax of lower(): string.lower() Parameters: It does not take any parameter. Returns: It returns a lowercase string of the given string. Syntax of casefold(): string.casefold() Parameters: It does not take any parameter. Returns: It returns a lowercase string of the given string.
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