Conversion and Comparison

String conversions

Two types of string conversions are frequently required:

• Converting the case of characters in a string.
• Converting numbers to a string and vice versa.

Case conversions

Case conversions can be done using the following str methods:

• upper(): Converts string to uppercase.
• lower(): Converts string to lowercase.
• capitalize(): Converts the first character of a string to uppercase.
• title(): Converts the first character of each word to uppercase.
• swapcase(): Swaps cases in the string.