08 String In Python And Its Method Part 1 || Complete Python Course By CarryCoder || Hindi ||

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In Python, a string is a sequence of characters enclosed in quotation marks. can be created using single quotes ('…') or double quotes ("…"). They can also be created using triple quotes ("""…""" or '''…''') to span multiple lines.

Strings are immutable, which means that once a string is created, it cannot be modified. However, you can create a new string by concatenating two or more strings using the + operator.

Python provides a number of built-in functions and methods for working with strings, including functions for converting strings to uppercase or lowercase, splitting strings into substrings, and finding the position of a substring within a string.

Strings can also be formatted using placeholders, which are replaced with values at runtime. The most common way to format strings in Python is using the format() method, which allows you to insert values into a string using placeholders.

Here are some of the most commonly used methods for working with strings in Python:

len
: Returns the length of a string.

lower()
: Converts all characters in a string to lowercase.

upper()
: Converts all characters in a string to uppercase.

strip()
: Removes any leading or trailing whitespace from a string.

replace()
: Replaces a specified substring with another substring.

split()
: Splits a string into a list of substrings based on a specified delimiter.

join()
: Joins a list of strings into a single string using a specified delimiter.

startswith()
: Returns True if a string starts with a specified substring.

endswith()
: Returns True if a string ends with a specified substring.

find()
: Returns the index of the first occurrence of a specified substring in a string.

count()
: Returns the number of occurrences of a specified substring in a string.

isalpha()
: Returns True if all characters in a string are alphabetic.

isdigit()
: Returns True if all characters in a string are digits.

isalnum()
: Returns True if all characters in a string are alphanumeric.

isspace()
: Returns True if all characters in a string are whitespace.

These are just a few of the many methods available for working with strings in Python.