¿Hay alguna manera de interpolar una cadena en Python?

Is there a way to interpolate a string in Python?

Python String Interpolation. In this article we will learn about the python string interpolation. Python supports multiple ways to format text strings and these includes %-formatting, sys.format (), string.Template and f-strings. String interpolation is a process substituting values of variables into placeholders in a string.

This process is called string interpolation. Python 3.6 added new string interpolation method called literal string interpolation and introduced a new literal prefix f. This new way of formatting strings is powerful and easy to use. It provides access to embedded Python expressions inside string constants.

PEP 498 — Literal String Interpolation PEP: 498 Created: 01-Aug-2015 Python-Version: 3.6 Post-History: 07-Aug-2015, 30-Aug-2015, 04-Sep-2015, . Resolution: https://mail.python.

A similar feature was proposed in PEP 215. PEP 215 proposed to support a subset of Python expressions, and did not support the type-specific string formatting (the __format__ () method) which was introduced with PEP 3101. This PEP is driven by the desire to have a simpler way to format strings in Python.

I often see new Python programmers attempt to recreate traditional for loops in a slightly more creative fashion in Python: This first creates a range corresponding to the indexes in our list ( 0 to len (colors) – 1 ). We can loop over this range using Python’s for-in loop (really a foreach ).

The string interpolation feature is built on top of the composite formatting feature and provides a more readable and convenient syntax to include formatted expression results in a result string. To identify a string literal as an interpolated string, prepend it with the $ symbol.