Python from sources: subprocess has no 'run' attribute

Question

I have manually built python3.5.2 from sources on my ubuntu 15.10. The build process went well, but now when I execute below script

import subprocess
print(subprocess.run(["ls"]))

I receive following output:

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
AttributeError: 'module' object has no attribute 'run'

When I run same script on Windows (where I have installed python3.5.2 via installer) I receive expected output:

CompletedProcess(args='ls', returncode=0)

On my ubuntu machine subprocess.py is present in and it has "run" function defined. I anticipated that python3.5.2 could look for subprocess.py in libs folder for 2.7 (preinstalled on ubuntu) but this is not the case.

What could be wrong with my installation?

Answer 1

Try

import subprocess
import sys
print(sys.executable)
print(subprocess)