CODEWITHSUNDEEP
pythonpython-3.xmakefileenvironment-variables
TonySalimi
TonySalimi

Reputation: 8437

Using environment variable as a python argument fails in Makefile

I have a Makefile with this target:

MY_DIR:=${CURDIR}/MY/DIR
my_proj: 
    cd $(MY_DIR); echo $(MY_ENV_VAR); python $(MY_ENV_VAR)/myscript.py --src $(MY_DIR) config

that runs a python script, i.e. myscript.py that its location is stored in the MY_ENV_VAR environment variable. The weird point is that the echo command, prints the variable correctly (i.e. c:/my/project/dir), but the python complains that it cannot find the script file with this error:

python.exe: can't open file 'c:myprojectdir/myscript.py': [Errno 2] No such file or directory

Now, the main Q is why the make tool interprets my environment variable correctly in the echo command, but the path is broken while passing to python?

p.s. I am working with python 3.7.3, make 4.2.1 on Windows 10.

Update 1: I have used the $(value ...) function as described in some other questions and here, but the problem is still the same.

Upvotes: 0

Views: 136

Answers (1)

Vorpal
Vorpal

Reputation: 326

From the information given it is hard to know. I would guess that perhaps you have c:\ instead of c:/ in that path and that the \ end up as an invalid escape character. Try using \\ in the path, or replacing it with a forward slash.

I can't test this myself though since I'm on Linux.

Upvotes: 3

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