Bash running python inline in shell script still not working

Question

I am on Windows and using GitBash to run shell scripts in bash that run python scripts.

I'm trying to run python inline in a bash shell script using the answer from How to execute Python inline from a bash shell.

I'm using a specific python environment, and the path is defined with an alias.

This is a file called .pyalias:

alias mypython='C:/users/name/mypath/python.exe test.sh'

This is a file called test.sh:

# misc notes at top, like a docstring
print("Hello")
# real file will instead say myPyScript.py etc.

Here is the problem: This is a file called main_run_all.sh:

# misc notes at top, like a docstring

shopt -s expand_aliases
source ./.pyalias

mypython test.sh

mypython -c print("Hello Again")

When I run sh main_run_all.sh, it prints "Hello" to the console (good, it is successfully running the test.sh script), but then it doesn't run the inline command, returning the following error:

test.sh: line 8: syntax error near unexpected token `('
test.sh: line 8: `mypython -c print("Hello Again")'

You should just forget about aliases. Use a shell function or a script instead. — tripleee
– tripleee, Commented Sep 1, 2022 at 18:55

glenn jackman · Accepted Answer · 2022-09-01 18:50:55Z

1

You need to put the python code in quotes so the shell doesn't try to parse it like shell code:

mypython -c 'print("Hello Again")' 
# ..........^....................^

If you get python code that contains both double and single quotes, quoting can be a real pain. That's the point when you use a quoted here-doc:

python <<'END_PYTHON'
print("Hello")
print('World')
END_PYTHON

answered Sep 1, 2022 at 18:50

glenn jackman

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