This post explains how to concatenate a string in Python. As well as how to build strings, search for substrings and much more.

Strings can be considered index-based collections of smaller strings or characters, each one referenced by its position in the string.

In Python 2, you don't need to talk about byte strings explicitly, but by using them, you can make it very clear as to whether you're using bytes or characters.

Python’s new template strings, or t-strings, give you a much more powerful way to format data than the old-fashioned f-strings. The familiar formatted string, or f-string, feature in Python ...