Issue
Python recognizes the following as instruction which defines file's encoding:
# -*- coding: utf-8 -*-
I definitely saw this kind of instructions before (-*- var: value -*-
). Where does it come from? What is the full specification, e.g. can the value include spaces, special symbols, newlines, even -*-
itself?
My program will be writing plain text files and I'd like to include some metadata in them using this format.
Solution
This way of specifying the encoding of a Python file comes from PEP 0263 - Defining Python Source Code Encodings.
It is also recognized by GNU Emacs (see Python Language Reference, 2.1.4 Encoding declarations), though I don't know if it was the first program to use that syntax.
Answered By - Andrea Spadaccini
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