How to check for clang presence in Python?

Question

How can I check that clang is built or that clang tool is available?

I need to check it in Python 2.7.

I tried with os.path.exists(file_path), but you can build clang anywhere so it is not the best way.

Community · Accepted Answer · 2017-05-23 12:31:14Z

2

This might work for you if clang is available in the path, it performs a search for the presence of the clang executable:

from distutils.spawn import find_executable

clang_executable = find_executable('clang')

If it finds clang it will return the path to the executable, e.g. /usr/bin/clang, otherwise it will return None.

This is the relevant part of the docs (not that descriptive), and here is a SO question looking for something similar.

CommunityBot

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answered Mar 8, 2016 at 21:44

Apoc

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1 Comment

This is works, thanks. I'm looking for something like this.

twasbrillig · Accepted Answer · 2016-03-08 21:49:00Z

1

Add which to your PATH, and then run:

import subprocess
subprocess.check_output("which clang")

answered Mar 8, 2016 at 21:49

twasbrillig

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Pold · Accepted Answer · 2016-03-08 21:53:49Z

1

If you're using Unix/Linux and clang is on your PATH:

import subprocess
c = subprocess.call(["which", "clang"])
if c == 0:
    print("clang is available")

answered Mar 8, 2016 at 21:53

Pold

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