Importing files from different folder
Note: This answer was intended for a very specific question. For most programmers coming here from a search engine, this is not the answer you are looking for. Typically you would structure your files into packages (see other answers) instead of modifying the search path.
By default, you can't. When importing a file, Python only searches the directory that the entry-point script is running from and sys.path
which includes locations such as the package installation directory (it's actually a little more complex than this, but this covers most cases).
However, you can add to the Python path at runtime:
# some_file.pyimport sys# insert at 1, 0 is the script path (or '' in REPL)sys.path.insert(1, '/path/to/application/app/folder')import file
Nothing wrong with:
from application.app.folder.file import func_name
Just make sure folder
also contains an __init__.py
, this allows it to be included as a package. Not sure why the other answers talk about PYTHONPATH
.
When modules are in parallel locations, as in the question:
application/app2/some_folder/some_file.pyapplication/app2/another_folder/another_file.py
This shorthand makes one module visible to the other:
import syssys.path.append('../')