Non-ASCII character '\xe2' in file but no encoding declared

问题

I wrote a script to extract signals from the MIT-BIH dataset using the wfdb python library. The script was working fine when I was running it on windows but I recently shifted to Mac. After installing all the dependencies I got an error when I tried to import processing from the wfdb library. This is the error I get:

SyntaxError: Non-ASCII character '\xe2' in file /usr/local/lib/python2.7/site-packages/scipy/stats/_continuous_distns.py on line 3346, but no encoding declared; see http://python.org/dev/peps/pep-0263/ for details

import wfdb works fine but there seems to be a problem when I do from wfdb import processing. Is there any way to solve this issue?

回答1:

This error is caused due to copying and pasting code from web which causes stray byte floating. You can find it by running.

with open('my_script.py', 'r') as ms:
    for i, line in enumerate(ms):
        if '\xe2' in line:
            print(i, repr(line))

And the line and its index value will be printed where there is '\xe2':

4, "\xe2        word=string.printable(random.randint[0,61]) # Gets the random word"

Note: You should replace my_script.py with your respective .py file.

来源：https://stackoverflow.com/questions/54388973/non-ascii-character-xe2-in-file-but-no-encoding-declared