Execute python program with bash script

Question

I have following bash script:

export MYCONFIG_CONFIG=TEST
/home/bmwant/projects/test/venv/bin/python3 /home/bmwant/projects/test/script.py

My python script needs environment variable which I have set, but running this script as

bash run_python.sh

shows an error

/home/bmwant/projects/test/venv/bin/python3: can't open file 'home/bmwant/projects/tes': [Errno 2] No such file or directory

What is wrong? I have set script as executable with chmod u+x run_python.sh

try putting the path to the python script in quotes and double check its correct — heinst
– heinst, Commented Jun 12, 2015 at 13:59
Should home/bmwant/projects/tes be home/bmwant/projects/test (missing t)? — Martin Thoma
– Martin Thoma, Commented Jun 12, 2015 at 14:00
@moose no...look at his bash script again... the path he has is "/home/bmwant/projects/test/script.py" the interpreter isnt reading the full path for some reason... — heinst
– heinst, Commented Jun 12, 2015 at 14:02
check again run_python.sh. that's strange. you can also shebang it. (google python3 shebang) — Jossef Harush Kadouri
– Jossef Harush Kadouri, Commented Jun 12, 2015 at 14:05

Horst · Accepted Answer · 2015-06-17 06:49:42Z

1

Have made script.py executable?

chmod u+x /home/bmwant/projects/test/script.py

Try this script:

#!/bin/bash
export MYCONFIG_CONFIG=TEST
pushd /home/bmwant/projects/test/venv/bin/
./python3 /home/bmwant/projects/test/script.py
popd

You can run it via:

./run_python.sh

edited Jun 17, 2015 at 6:49

answered Jun 12, 2015 at 14:08

Horst

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3 Comments

Most Wanted Over a year ago

-bash: ./run_python.sh: /bin/bash^M: bad interpreter: No such file or directory

Horst Over a year ago

ah sorry ... do a dos2unix run_python.sh ... L̶i̶n̶u̶x̶ ̶c̶o̶l̶l̶i̶d̶e̶s̶ ̶w̶i̶t̶h̶ ̶m̶y̶ ̶w̶i̶n̶d̶o̶w̶s̶ ̶n̶e̶w̶l̶i̶n̶e̶s̶!̶ Bullshit, but it should help anyway ;)

tripleee Over a year ago

You probably mean ./python3 not .python3. With that fix, this might work if the symptom is caused by something which only allows a very short path name, but that would be highly ususual -- my guess is this won't help. (Also, the pushd / popd is superfluous -- the script's working directory will be lost when the script finishes. You could just as well replace the pushd with a plain cd.)

Most Wanted · Accepted Answer · 2015-06-12 15:21:29Z

0

So, the problem was in file format. I have created it in Windows and then copy via FileZilla to remote server where I was trying to run it. So just run

apt-get install dos2unix
dos2unix run_python.sh
bash run_python.sh

and all will work well. Thanks @Horst for the hint.

answered Jun 12, 2015 at 15:21

Most Wanted

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1 Comment

tripleee Over a year ago

Please accept this answer (or delete the question) so that this no longer comes up as unresolved. Thanks.

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