How Does Python\'s % Operator Function in String Formatting?

Python's % Operator for Strings: A Comprehensive Guide

Python's % operator holds a unique purpose when applied to strings. Unlike its mathematical function in performing modulo operations, when affixed to a string on the left-hand side, the % operator transforms into a string formatting tool.

String Formatting with the % Operator

The % operator in this context is employed for string interpolation. It enables you to construct strings where predefined placeholders in the format string are substituted with corresponding values specified in a list or tuple.

Syntax:

format % values

where:

• format is the string containing placeholders indicated by % followed by a conversion specifier, e.g., %d for integers or %s for strings.
• values is a tuple or list containing the values that will replace the placeholders in the format string.

Example:

<code class="python">name = "John"
age = 30
formatted_string = "My name is %s and I am %d years old." % (name, age)
print(formatted_string)</code>

Output:

My name is John and I am 30 years old.

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