How to get first 100 characters of the string in Python?

As you may know a string is a group of letters, numbers, or symbols in Python. Sometimes we do not need the whole string. We may only want a small part of it. For example, we may want only the first 100 characters. Python makes this easy by using something called slicing. Slicing means taking a part of the string using square brackets [] with numbers inside to specify the range.

In this article, we will show you how to get the first 100 characters of a string in Python. The following are the 4 different methods to accomplish this task −

• Using Slicing

• Using slice() Function

• Using While Loop

• Using For Loop

Using Slicing

Slicing is the most efficient and Pythonic method for extracting a portion of a string. In Python, slicing is done using the colon operator :. The syntax string[:n] returns the first n characters ?

Syntax

string[:n]  # Get first n characters

Example

# input string
text = "Hello everyone welcome to the tutorialsPoint python sample codes Hello everyone welcome to the tutorialsPoint python sample codes Hello everyone welcome to the tutorialsPoint python sample codes"

# getting first 100 characters using slicing
first_100_chars = text[:100]

# printing the result
print(first_100_chars)
print(f"Length: {len(first_100_chars)}")

Hello everyone welcome to the tutorialsPoint python sample codes Hello everyone welcome to the tutor
Length: 100

Using slice() Function

The slice() function creates a slice object that can be used to extract characters from a string. This approach is useful when you need to reuse the same slice pattern multiple times ?

Syntax

slice(start, stop, step)

Example

# input string
text = "Hello everyone welcome to the tutorialsPoint python sample codes, lets start coding and understand how Slicing works in Python"

# creating a slice object for first 100 characters
slice_obj = slice(100)

# applying the slice to get first 100 characters
first_100_chars = text[slice_obj]

# printing the result
print(first_100_chars)
print(f"Length: {len(first_100_chars)}")

Hello everyone welcome to the tutorialsPoint python sample codes, lets start coding and understand h
Length: 100

Using While Loop

A while loop can iterate through each character of the string until we reach the 100th character. This method is less efficient but demonstrates manual character extraction ?

Example

# input string
text = "Hello everyone welcome to the tutorialsPoint python sample codes Hello everyone welcome to the tutorialsPoint python sample codes Hello everyone welcome to the tutorialsPoint python sample codes"

# variables for loop control
result = ""
index = 0

# using while loop to get first 100 characters
while index < 100 and index < len(text):
    result += text[index]
    index += 1

# printing the result
print(result)
print(f"Length: {len(result)}")

Hello everyone welcome to the tutorialsPoint python sample codes Hello everyone welcome to the tutor
Length: 100

Using For Loop

A for loop with enumeration can also extract the first 100 characters by tracking the character position and breaking when we reach the limit ?

Example

# input string
text = "Hello everyone welcome to the tutorialsPoint python sample codes Hello everyone welcome to the tutorialsPoint python sample codes Hello everyone welcome to the tutorialsPoint python sample codes"

# result string
result = ""

# using for loop with enumerate to get first 100 characters
for index, char in enumerate(text):
    if index < 100:
        result += char
    else:
        break

# printing the result
print(result)
print(f"Length: {len(result)}")

Hello everyone welcome to the tutorialsPoint python sample codes Hello everyone welcome to the tutor
Length: 100

Handling Edge Cases

When working with strings shorter than 100 characters, all methods will simply return the entire string without errors ?

# short string example
short_text = "Hello Python!"

# all methods work safely with short strings
print("Slicing:", short_text[:100])
print("Length:", len(short_text[:100]))

Slicing: Hello Python!
Length: 13

Performance Comparison

Conclusion

The slicing method string[:100] is the most efficient and Pythonic way to get the first 100 characters of a string. Use slice() function when you need reusable slice patterns, while loops are mainly useful for educational purposes.