How to read binary data via pipe in python

Question

What do I need do to make sure the data is read as binary and not text when i do

cat binfile | myscript.py

reads as text mode I need binary mode?

data = sys.stdin.read

Possible duplicate of [Reading binary data from stdin](https://stackoverflow.com/questions/2850893/reading-binary-data-from-stdin) — jez, Jan 26 '19 at 19:54

Benoît P · Answer 1 · 2019-01-26T19:20:52.297

0

Assuming you're using the latest version of Python, that you're looking for is:

sys.stdin.buffer.read()

Note: You must use help(sys.__stdin__) in interactive mode. This is because you can't use the normal stdin in interactive mode. sys.stdin.buffer simply doesn't exist in interactive mode.

edited Jan 26 '19 at 19:20

answered Jan 26 '19 at 18:58

Benoît P

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I did that and get AttributeError: 'file' object has no attribute 'buffer' – moimoi Jan 26 '19 at 19:05
What version of python are you using (`python -V` to check) – Benoît P Jan 26 '19 at 19:18
Python 2.7.5 Actualy this worked. sys.stdin.read(). I tested on a file with just this – moimoi Jan 26 '19 at 19:32
I don't know how Python 2 work in this case but Python 3 would wait indefinitely for a `\n` and if you send binary data, the wait can be long. – Benoît P Jan 26 '19 at 20:03

How to read binary data via pipe in python

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