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.

Jul 22, 2019 · 63 In Python 3.6, the f-string, formatted string literal, was introduced (PEP 498). In short, it is a way to format your string that is more readable and fast. Example:

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

Jul 12, 2023 · Given a float between 0 and 1, how to print it as a percentage? For example, 1/3 should print as 33%.

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 …

x = 1.23456 print('%.3f' % x) If I want to print the numpy.ndarray of floats, it prints several decimals, often in 'scientific' format, which is rather hard to read even for low-dimensional …

Jun 22, 2017 · 205 I like the pprint module (Pretty Print) included in Python. It can be used to either print the object, or format a nice string version of it.

The % outside and after the string is telling python that you intend to use the previous string as the format string and that the following data should be put into the format specified.

Take a look on pprint, The pprint module provides a capability to “pretty-print” arbitrary Python data structures in a form which can be used as input to the interpreter. If the formatted …

print(format(i, '02d')) See the PEP-3101 documentation for the new formatting functions.