How To Convert Upper Case Letters To Lower Case

I have a script which reads the input and than lists it, however i want it to convert upper case letters to lower case, how can i do that? this is what i got for words in text.rea

Solution 1:

You can find more methods and functions related to Python strings in section 5.6.1. String Methods of the documentation.

w.strip(',.').lower()

Solution 2:

str.lower() converts all cased characters to lowercase.

Solution 3:

To convert a string to lower case in Python, use something like this.

list.append(sentence.lower())

I found this in the first result after searching for "python upper to lower case".