How do you format a string in Python?

In Python, you can format a string in several ways, including:

1. Concatenation: You can concatenate strings using the + operator. For example:

name = "John"
print("Hello, " + name)

Output:

Hello, John

2. String Interpolation: You can use the format method to interpolate values into a string. For example:

name = "John"
print("Hello, {}".format(name))

Output:

name = "John"
print("Hello, {}".format(name))

3. f-Strings: f-strings, also known as "Formatted String Literals", are a more recent way of formatting strings in Python. They were introduced in Python 3.6. You can use f-strings to embed expressions within string literals, using {} and {}. For example:

name = "John"
print(f"Hello, {name}")

Output:

Hello, John

Each of these methods has its own strengths and weaknesses, and the best method to use will depend on the specific use case. Concatenation is a simple method for joining strings, but can become unwieldy for more complex use cases. The format method is more flexible, but can be harder to read for complex use cases. f-strings provide a good balance between simplicity and flexibility, and are generally the recommended method for formatting strings in Python 3.6 and later.