158 Assuming you're using Python's logging module, you can pass the string formatting arguments as arguments to the .debug() method rather than doing the formatting yourself:

I want to create a formatted string with fixed size with fixed position between fields. An example explains better, here there are clearly 3 distinct fields and the string is a fixed size: XXX ...

20 You're looking for string formatting, which in python is based on the sprintf function in C.

If I want to make my formatted string dynamically adjustable, I can change the following code from

Dec 29, 2021 · I have a dictionary with a lot of strings. Is it possible to store a formatted string with placeholders and pass in a actual values later? I'm thinking of something like this: d = { …

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

18 f-strings (python 3) You can avoid having to double the curly brackets by using f-strings ONLY for the parts of the string where you want the f-magic to apply, and use regular (dumb) strings for everything …

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.

related: Formatted string literals in Python 3.6 with tuples in case you're looking for an f-string based solution.

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 …