The built-in format() function converts an input value into a formatted string representation based on the specified format. The function takes a format specification, format_spec, which determines how the value should be formatted:
format() Signature Arguments Argument Description Default Value value The value to be formatted. Required argument format_spec A string specifying the format using the mini-language syntax. "" Return Value
format_spec isn’t provided, then format() returns the string representation of the value as if str(value) was called.format() Examples
With a floating-point number and a format specifier for two decimal places:
With an integer number and a format specifier for thousand separators:
With a string and a format specifier for left alignment and filling:
format() Common Use Cases
The most common use cases for the format() function include:
format() Real-World Example
Suppose you’re creating a financial report and need to format currency values consistently. Here’s how you can use the format() function to achieve that:
In this example, the format() function formats the sales amount with a comma as a thousand separator and two decimal places. Then, you add a dollar sign using an f-string. This helps present financial data clearly and professionally.
For additional information on related topics, take a look at the following resources:
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