AttributeError File object has no attribute 'raw' Error

Question

I have the following code written by Michael for finding linecount cheaply but when I run it it gives me an error as AttributeError File object has no attribute 'raw' Error and I am not sure why this is occurring. Below is the code for reference any help is highly appreciated

from itertools import (takewhile,repeat)

def _make_gen(reader):
    b = reader(1024 * 1024)
    while b:
        yield b
        b = reader(1024*1024)

def rawpycount(filename):
    f = open(filename, 'rb')
    f_gen = _make_gen(f.raw.read)
    return sum( buf.count(b'\n') for buf in f_gen )

Re-read the answer, especially: "This only applies in Python 3." — Jared Goguen, Apr 28 '16 at 18:06
Sorry missed that part but is there anyother way to run on Python 2.7? — Illuminati, Apr 28 '16 at 18:10
I think it should just be `f.read`, python 3 works with unicode directly, python 2.7 works with bytes directly. — Javier Buzzi, Apr 28 '16 at 18:19

score 2 · Accepted Answer · answered Apr 28 '16 at 18:23

2

Change _make_gen(f.raw.read) to _make_gen(f.read).

Python 3.x using unicode by default, hence the raw to convert to bytes. On the other hand, Python 2.x using bytes by default so no need for anything else.

answered Apr 28 '16 at 18:23

Javier Buzzi

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AttributeError File object has no attribute 'raw' Error

1 Answers1