Error building SymPy and PyCall when username has a space

[Palli]

That should work too, see docs, and there, also preceding comments about not working):

Creating an package (and eventually app) with Python dependencies

I haven’t used together myself, just know about the issue and solution in the doc (why I wrote read carefully, didn’t it work?): To force PythonCall to use the same Python interpreter as PyCall, set the environment variable JULIA_PYTHONCALL_EXE to "@PyCall". Note that this will opt out of automatic dependency management using CondaPkg. Alternatively, to force PyCall to use the same interpreter as PythonCall, set the environment variable PYTHON to PythonCall.C.CTX.exe_path and then Pkg.build("…