python format online

python format online

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Python format function

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Here's a brief introduction on how you can use the format function in Python:

The format method is used to format strings. It allows you to insert values into strings. You can use placeholders (like {}) and then fill them with values from your variables.

Here are some examples of using the format function in Python:

Example 1: Basic Formatting

name = "John"
age = 25
print("My name is {} and I'm {} years old.".format(name, age))

Output:

My name is John and I'm 25 years old.

Example 2: Formatting Numbers

pi = 3.14159
print("The value of pi is {:.2f}".format(pi))

Output:

The value of pi is 3.14

Example 3: Formatting Strings

first_name = "John"
last_name = "Doe"
print("{} {}".format(first_name, last_name))

Output:

John Doe

Example 4: Formatting Multiple Values

name = "John"
age = 25
country = "USA"
print("My name is {} and I'm {} years old. I am from {}.".format(name, age, country))

Output:

My name is John and I'm 25 years old. I am from USA.

You can also use keyword arguments (like name and age) with the str.format method:

Example 5: Keyword Arguments

name = "John"
age = 25
print("My name is {name} and I'm {age} years old.".format(name=name, age=age))

Output:

My name is John and I'm 25 years old.

These are just some basic examples of how you can use the format function in Python. It's a powerful tool that allows you to customize your output strings.

Note: In Python 3.x, the str.format method has been replaced by string formatting using f-strings (like f"My name is {name} and I'm {age} years old.").