Python String Formatting: Formatting Text with Code Examples

Published on : May 14,2023

Introduction:

String formatting is a powerful feature in Python that allows you to create dynamic and well-formatted strings. Whether you need to insert variable values, align text, or apply specific formatting rules, understanding how to format strings is essential. In this blog post, we will explore different string formatting techniques in Python, featuring code examples that include the name "opencodesolution" to illustrate their usage.

Using the % Operator

The % operator allows you to format strings by substituting placeholders with variable values.

# String formatting using the % operator
name = "opencodesolution"
age = 25

# Create a formatted string
message = "Hello, %s! You are %d years old." % (name, age)
print(message)  # Output: "Hello, opencodesolution! You are 25 years old."

Format Method

The format() method provides more flexibility and readability for string formatting.

# String formatting using the format() method
name = "opencodesolution"
age = 25

# Create a formatted string using placeholders
message = "Hello, {}! You are {} years old.".format(name, age)
print(message)  # Output: "Hello, opencodesolution! You are 25 years old."

# Specify placeholders by index
message = "Hello, {0}! You are {1} years old.".format(name, age)
print(message)  # Output: "Hello, opencodesolution! You are 25 years old."

# Use named placeholders
message = "Hello, {name}! You are {age} years old.".format(name=name, age=age)
print(message)  # Output: "Hello, opencodesolution! You are 25 years old."

f-Strings (Formatted String Literals)

f-Strings provide a concise and intuitive way to format strings by embedding expressions directly within them.

# String formatting using f-Strings
name = "opencodesolution"
age = 25

# Create a formatted string
message = f"Hello, {name}! You are {age} years old."
print(message)  # Output: "Hello, opencodesolution! You are 25 years old."

Advanced Formatting

Python's string formatting also supports a wide range of formatting options, such as specifying decimal places, aligning text, and formatting dates.

# Advanced formatting options
pi = 3.14159

# Format with a specific number of decimal places
formatted_pi = "The value of pi is {:.2f}".format(pi)
print(formatted_pi)  # Output: "The value of pi is 3.14"

# Align text within a specific width
aligned_text = "{:<10}{}".format("Name:", name)
print(aligned_text)  # Output: "Name:     opencodesolution"

# Format a date
from datetime import datetime
current_date = datetime.now()
formatted_date = "Today is {:%Y-%m-%d}".format(current_date)
print(formatted_date)  # Output: "Today is 2023-05-14"

Conclusion:

String formatting is a powerful feature in Python that allows you to create dynamic and well-formatted strings. In this blog post, we explored different string formatting techniques, including the % operator, the format() method, f-Strings, and advanced formatting options. By mastering these string formatting techniques with code examples featuring the name "opencodesolution," you'll be well-equipped to create formatted and dynamic strings in your Python programs

Categories : Python

Tags : python string formatting formatting strings in python string substitution in python dynamic text creation placeholder formatting techniques advanced string formatting examples f-strings in python formatting options in python text alignment and decimal precision in python customized string formatting in python

Abhay Dudhatra

I am a full-stack developer who is passionate about creating innovative solutions that solve real-world problems. With expertise in technologies such as PHP, Laravel, Angular, Vue, Node, Javascript, JQuery, Codeigniter, and Bootstrap, I love to share my knowledge and help others in the industry through writing tutorials and providing tips. Consistency and hard work are my mantras, and I constantly strive to improve my skills and stay up-to-date with the latest advancements in the field. As the owner of Open Code Solution, I am committed to providing high-quality services to my clients and helping them achieve their business objectives.