python: raise child_exception, OSError: [Errno 2] No such file or directory

Question

I execute a command in python using subprocess.popen() function like the following:

omp_cmd = \'cat %s | omp -h %s -u %s -w %s -p %s -X -\' %(temp_xml, self.         


        

Answer 1

This error has also occured for me too with tox scripts, turns out that a virtualenv is created with tox which has an asolute path with length about 96 characters but whenever it takes your absolute 'bin/pip' path to near about 123 chars, there is an invocation error, OSError2.

'ERROR: invocation failed (errno 2), OSError: [Errno 2] No such file or directory'

Python: Python 2.7.6 virtualenv:15.1.0 tox: 2.9.1 pip: 9.0.1 ubuntu 14.04 test ran with coverage: django(1.8-1.11) tests with py27, py35 each

Resolution: I created my virtualenv(with abs path <=(96-100) chars) first where tox is installed, cloned my project to be used with this tox installation and virtualenv, tox creates it own virtualenvs now and it runs fine.

hope it helps.