Popen error: [Errno 2] No such file or directory
Just a note. shell=True
was likely the correct solution to the o.p., since they did not make the following mistake, but you can also get the "No such file or directory" error if you do not split up your executable from its arguments.
import subprocess as sp, shlexsp.Popen(['echo 1']) # FAILS with "No such file or directory"sp.Popen(['echo', '1']) # SUCCEEDSsp.Popen(['echo 1'], shell=True) # SUCCEEDS, but extra overheadsp.Popen(shlex.split('echo 1')) # SUCCEEDS, equivalent to #2
Without shell=True
, Popen expects the executable to be the first element of args, which is why it fails, there is no "echo 1" executable. Adding shell=True
invokes your system shell and passes the first element of args
to the shell. i.e. for linux, Popen(['echo 1'], shell=True)
is equivalent to Popen('/bin/sh', '-c', 'echo 1')
which is more overhead than you may need. See Popen() documentation for cases when shell=True
is actually useful.
You have to give the full path to your program deactivate
and then it the subprocess module should be able to find it.