For reference: Python 3 documentation for the newer format() formatting style and the older % -based formatting style.

The OP & accepted answer focus on formatting time, but the OP question itself discusses formatting numbers to strings in Python. In many cases, the output requires additional data fields be included …

10 PEP 498 which landed in python 3.6 added literal string interpolation, which is basically a shortened form of format. You can now do:

Jul 5, 2021 · Using the newer formatted string literals or the str.format () interface helps avoid these errors. These alternatives also provide more powerful, flexible and extensible approaches to …

111 I'm using the .format() a lot in my Python 3.5 projects, but I'm afraid that it will be deprecated during the next Python versions because of f-strings, the new kind of string literal.

91 As Python 3.0 and 3.1 are EOL'ed and no one uses them, you can and should use str.format_map(mapping) (Python 3.2+): Similar to str.format(**mapping), except that mapping is …

Aug 3, 2010 · On str.format instead of % A newer alternative to % operator is to use str.format. Here's an excerpt from the documentation: str.format(*args, **kwargs) Perform a string formatting operation. …

The format specifier inside the curly braces follows the Python format string syntax. Specifically, in this case, it consists of the following parts: The empty string before the colon means "take the next …

Rather, the Python documentation website behind that link was rewritten. Apart from that, the documentation used to have stronger wording, and literally states that str.format “should be preferred …

Jul 27, 2023 · No, it is not safe in general to use str.format with user-provided format strings. Format strings are capable to executing a limited form of Python code. This limited code is just powerful …