A simple library for finding a superordinate path and attaching it to the module search path.
This is a very simple (small) software library. It is used only for one thing.
Suppose you are working in a project with a directory structure like this:
project_folder |-scripts_folder | |-python_libs | | |-my_python_lib | | | * __init__.py |-sub_folder_1 | | * my_python_script.py
Suppose you want your python script
my_python_script.py to consume the
Then, at the top of your script, you would put the following code.
import os import lib_attacher # Get the folder containing your script file. this_folder=os.path.dirname(os.path.realpath(__file__)) # Attach to the parent folder of your library attached = lib_attacher.attach_folder_in_hierarchy( start_folder=this_folder, target_sub_path="scripts_folder/python_libs") # Check to make sure it worked if attached is None: raise Exception("Failed to find python_libs folder.") # Now you can import your library. import my_python_lib
If you subsequently move your
my_python_script.py file around, it will still work. For example,
it will also work from any of these locations:
project_folder |-sub_folder_1 | |-sub_folder_2 | | | * my_python_script.py
project_folder |-sub_folder_1 | |-sub_folder_2 | | |-sub_folder_3 | | | | * my_python_script.py
project_folder | * my_python_script.py
If, by some chance, there are multiple
scripts_folder/python_libs folders, you can specify the
extra_sub_path parameter to ensure that you match the target folder exactly (without ambiguity).
# Attach to the parent folder of your library attached = lib_attacher.attach_folder_in_hierarchy( start_folder=this_folder, target_sub_path="scripts_folder/python_libs", extra_sub_path="my_python_lib/__init__.py")
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