String Pattern on a bytes-like object

Question

Trying to move my application to Python 3.4...

My code:

    def Continue(self):
        exec(open(b"file.py").read())

My error:

TypeError: can't use a string pattern on a bytes-like object

My (miss)understanding is that by prefixing the filename string with a 'b' I am turning it into the required bytes like object.

Can anyone elighten me?

I think the file is read in as bytes. Try exec(open("file.py").read().decode("ascii"))) or encode. You can also try decode("ascii", "ignore") which will ignore errors that occur. — justengel, Dec 19 '14 at 13:19
I'm not certain if I was sufficiently clear with my question - I'm trying to call a Python script from within another. In Python 2.x I'd have simply used exec("file.py") — Ben Mayo, Dec 19 '14 at 13:33

score 1 · Accepted Answer · edited May 23 '17 at 11:57

1

Basically open the file, read it, compile the code, and run it.

with open("somefile.py") as f:
    code = compile(f.read(), "somefile.py", 'exec')
    exec(code, global_vars, local_vars)

edited May 23 '17 at 11:57

Community

answered Dec 19 '14 at 13:48

justengel

1 Answers1