Use Python 3 string formatting. This is still available in earlier versions (from 2.6), but is the 'new' way of doing it in Py 3. Note you can either use positional (ordinal) arguments, or named arguments (for the …

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

Starting with Python 3.6, formatting in Python can be done using formatted string literals or f-strings:

Use f-strings if you just need to format something on the spot to print or create a string for other reasons, str.format() to store the template string for re-use and then interpolate values.

str(number).rjust(string_width, fill_char) This way, the original string is returned unchanged if its length is greater than string_width. Example:

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 …

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 …

Actually that PEP says "In Python 3.0, the % operator is supplemented by a more powerful string formatting method" and that it is backported to Python 2.6. Where I come from "supplemented" …

Jul 2, 2012 · Is it possible to do partial string formatting with the advanced string formatting methods, similar to the string template safe_substitute() function? For example: s = '{foo} {bar}' s.format(foo=...

Mar 22, 2013 · Format strings contain “replacement fields” surrounded by curly braces {}. Anything that is not contained in braces is considered literal text, which is copied unchanged to the output. If you …