Python Tutorial for Beginners: Strings and String Operations

"Python strings" – We have already seen how to write strings in the previous chapters. In this guide, we will dive deeper into strings to understand how they are used in real programming and explore the different use cases we can create with them.

Learn: Python Data Structure

What is String in Python?

A string is a text format used to store alphabets, symbols, spaces, and numbers. It is a sequence of characters written inside single quotes (' ') or double quotes (" ").

Example:

name = "Quillix Blogspot"

city = 'Kanpur'

To print a string, we use print function:

Example

text = "Hello World"
print(text)            #Output: Hello World

Access String Character

In python string, we can use indexing to acccess a particular string character.

Note: Python indexing starts from '0'.

Example:

website = "Quillix Blogspot"
print(website[2])    # 3rd character
print(website[6])    # 7th character

Find String Length

We can also find the character length of a string in Python using the len() function.

Example

website = "Quillix Blogspot"
print(len(website))

Join String (Concatenation)

Combining two or more strings in Python is an important concept. It also allows us to add default text with user input when displaying messages. We use "+" operator to add string.

Example

FirstName = "John"
LastName = "Smith"
YourName = FirstName + " " + LastName
print(YourName)

Repeat a String

There is also a method to type same string or text multiple times.

Code = "Python"
print(Code * 3)

Changing Letter Case

In python, we can also change letter in Upper and Lower case.

Code = "Python"
print(Code.upper())
print(Code.lower())

Checking Text Inside a String

Now if we want to check a common word in the string then we can use this method.

text = "Python Programming"
print("Python" in text)         #Output:True

Removing Extra Spaces

Consider to left extra between after and before the text then strip() method helps user to remove it.

Learn = "   Python Programming       "
print(Learn.strip())

String Slicing

Using the slice() method, we can extract a desired part of a string.
Note: The slice() method includes the start index but excludes the end index (e.g., index 7 means up to 6).

word = "Quillix Python Tutorial"
print(word[0:7])
print(word[8:10])

Final Thought

This is the first part of string operations. In the next tutorial, we will learn some other useful string methods like find(), count(), split(), etc., which are very helpful in real-world programming. If you found this helpful, feel free to share it with others.