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:

253 It is a string formatting syntax (which it borrows from C). Please see "PyFormat": Python supports formatting values into strings. Although this can include very complicated expressions, the most …

Aug 3, 2010 · This method of string formatting is the new standard in Python 3.0, and should be preferred to the % formatting described in String Formatting Operations in new code.

Using custom placeholder tokens with python string.format() Context python 2.7 string.format() alternative approach that allows custom placeholder syntax Problem We want to use custom …

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 …

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.

How do I print an integer with commas as thousands separators? 1234567 1,234,567 It does not need to be locale-specific to decide between periods and commas.

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 …