Python String Methods #18
In this session you will learn most important Python string methods in greater details.
In Python, a string is a sequence of characters enclosed in either single quotes (' ') or double quotes (" "). Python provides a wide range of string functions that allow you to manipulate and perform operations on strings. Some commonly used string functions in Python include:
1.) len(): Returns the length of a string (the number of characters).
2.) upper(): Converts all characters in a string to uppercase.
3.) lower(): Converts all characters in a string to lowercase.
4.) capitalize(): Capitalizes the first character of a string.
5.) strip(): Removes leading and trailing whitespace characters from a string.
6.) split(): Splits a string into a list of substrings based on a specified delimiter.
7.) join(): Concatenates a list of strings into a single string, using a specified delimiter.
8.) replace(): Replaces occurrences of a substring with another substring in a string.
9.) find(): Searches for a substring within a string and returns its index (position) if found.
10.) count(): Counts the number of occurrences of a substring within a string.
11.) partition() and rpartition() functions are string methods that allow you to split a string into three parts based on a given separator.
12.) index(): In Python, the index() function is a built-in string method that returns the index of the first occurrence of a specified substring within a string.
These are just a few examples of the string functions available in Python. With these functions, you can perform tasks such as manipulating text, extracting information, formatting strings, and more. Python's string functions provide a powerful toolkit for working with textual data.
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