Python - add PYTHONPATH during command line module run
For Mac/Linux;
PYTHONPATH=/foo/bar/baz python somescript.py somecommandFor Windows, setup a wrapper pythonpath.bat;
@ECHO OFFsetlocalset PYTHONPATH=%1python %2 %3endlocaland call pythonpath.bat script file like;
pythonpath.bat /foo/bar/baz somescript.py somecommand
import sys sys.path.append('your certain directory')Basically sys.path is a list with all the search paths for python modules. It is initialized by the interpreter. The content of PYTHONPATH is automatically added to the end of that list.
If you are running the command from a POSIX-compliant shell, like bash, you can set the environment variable like this:
PYTHONPATH="/path/to" python somescript.py somecommandIf it's all on one line, the PYTHONPATH environment value applies only to that one command.
$ echo $PYTHONPATH$ python -c 'import sys;print("/tmp/pydir" in sys.path)'False$ PYTHONPATH=/tmp/pydir python -c 'import sys;print("/tmp/pydir" in sys.path)'True$ echo $PYTHONPATH