How do I import a python module given its relative path?
For example, if
Assuming that both your directories are real python packages (do have the
__init__.py file inside them), here is a safe solution for inclusion of modules relatively to the location of the script.
I assume that you want to do this because you need to include a set of modules with your script. I use this in production in several products and works in many special scenarios like: scripts called from another directory or executed with python execute instead of opening a new interpreter.
import os, sys, inspect # realpath() will make your script run, even if you symlink it :) cmd_folder = os.path.realpath(os.path.abspath(os.path.split(inspect.getfile( inspect.currentframe() )))) if cmd_folder not in sys.path: sys.path.insert(0, cmd_folder) # use this if you want to include modules from a subfolder cmd_subfolder = os.path.realpath(os.path.abspath(os.path.join(os.path.split(inspect.getfile( inspect.currentframe() )),"subfolder"))) if cmd_subfolder not in sys.path: sys.path.insert(0, cmd_subfolder) # Info: # cmd_folder = os.path.dirname(os.path.abspath(__file__)) # DO NOT USE __file__ !!! # __file__ fails if script is called in different ways on Windows # __file__ fails if someone does os.chdir() before # sys.argv also fails because it doesn't not always contains the path
As a bonus, this approach does let you force Python to use your module instead of the ones installed on the system.
Warning! I don't really know what is happening when current module is inside an
egg file. Probably it fails too. Add a comment if you really need a better solution, I may invest few more hours in improving it.