Python String strip() Method

Python - String startswith()

Last Updated : 29 Apr, 2025

startswith() method in Python checks whether a given string starts with a specific prefix. It helps in efficiently verifying whether a string begins with a certain substring, which can be useful in various scenarios like:

Filtering data
Validating input
Simple pattern matching

Let’s understand by taking a simple example:

Python

s = "GeeksforGeeks"
res = s.startswith("for")

print(res)

Output

False

Explanation: startswith() method checks if the string s starts with "for", and since it starts with "Geeks" instead of for, the result is False.

Syntax

string.startswith(prefix[, start[, end]])

Parameters:

prefix: A string or a tuple of strings to check at the start.
start (optional): Index to start checking from.
end (optional): Index to stop checking.

Return Type: The method returns a Boolean:

True if the string starts with the specified prefix.
False if it does not.

Examples of startswith() method

Example 1: Basic Prefix Check

Here’s a simple example where we check if a given string starts with the word "for".

Python

s = "GeeksforGeeks"

res = s.startswith("for")
print(res)

Output

False

Explanation: The string starts with "Geeks", so it returns True.

Example 2: Using start Parameter

Let’s check the string using the start parameter to begin from a specific index.

Python

s = "GeeksforGeeks"
print(s.startswith("for", 5))

Output

True

Explanation: We're checking from index 5, and "for" starts from there hence the result is True.

Example 3: Using start and end Parameters

We can also check for stings within a given slice using star and end parameters.

Python

s = "GeeksforGeeks"
print(s.startswith("for", 5, 8))

Output

True

Explanation: checking only between index 5 and 8 (non inclusive) and "for" lies in that slice, so it returns True.

Example 4: Checking Multiple Prefixes

We can also check if the string starts with any one of several prefixes by passing a tuple of prefixes.

Python

s = "GeeksforGeeks"

res = s.startswith(("Geeks", "G"))
print(res)

Output

True

Explanation:

We pass a tuple with two prefixes: "Geeks" and "G".
The string starts with "Geeks", which is one of the options in the tuple, so the result is True.

Python String strip() Method

pawan_asipu

Improve

Article Tags :

Practice Tags :

Similar Reads

Python String istitle() Method

The istitle() method in Python is used to check whether a string follows the title case formatting. In a title-cased string, the first letter of each word is capitalized, and all other letters in the word are in lowercase. This method is especially useful when working with formatted text such as tit

Python String isupper() method

isupper() method in Python checks if all the alphabetic characters in a string are uppercase. If the string contains at least one alphabetic character and all of them are uppercase, the method returns True. Otherwise, it returns False. Let's understand this with the help of an example:Pythons = "GEE

Python String join() Method

The join() method in Python is used to concatenate the elements of an iterable (such as a list, tuple, or set) into a single string with a specified delimiter placed between each element.Lets take a simple example to join list of string using join() method.Joining a List of StringsIn below example,

String lower() Method in Python

lower() method in Python converts all uppercase letters in a string to their lowercase. This method does not alter non-letter characters (e.g., numbers, punctuation). Let's look at an example of lower() method:Pythons = "HELLO, WORLD!" # Change all uppercase letters to lowercase res = s.lower() prin

Python String lstrip() Method

The lstrip() method removes leading whitespace characters from a string. We can also specify custom characters to remove from the beginning/starting of the string.Let's take an example to remove whitespace from the starting of a string.Pythons = " Hello Python!" res = s.lstrip() print(res)OutputHell

Python String partition() Method

In Python, the String partition() method splits the string into three parts at the first occurrence of the separator and returns a tuple containing the part before the separator, the separator itself, and the part after the separator. Let's understand with the help of an example:Pythons = "Geeks gee

Python String replace() Method

The replace() method replaces all occurrences of a specified substring in a string and returns a new string without modifying the original string.Letâ€™s look at a simple example of replace() method.Pythons = "Hello World! Hello Python!" # Replace "Hello" with "Hi" s1 = s.replace("Hello", "Hi") print(

Python String rfind() Method

Python String rfind() method returns the rightmost index of the substring if found in the given string. If not found then it returns -1.ExamplePythons = "GeeksForGeeks" print(s.rfind("Geeks"))Output8 Explanationstring "GeeksForGeeks" contains the substring "Geeks" twice.rfind() method starts the sea

Python String rindex() Method

Python String rindex() method returns the highest index of the substring inside the string if the substring is found. Otherwise, it raises ValueError.Let's understand with the help of an example:Pythons = 'geeks for geeks' res= s.rindex('geeks') print(res)Output10 Note: If start and end indexes are

Python String rpartition() Method

String rpartition() method in Python is a powerful tool for splitting a string into three parts, based on the last occurrence of a specified separator. It provides an efficient way to handle text parsing when we want to divide strings from the rightmost delimiter. Let us start with a simple example: