import imptools

my_module = imptools.import_path(
    '../path/to/my_module',  # Path to a module directory or single file.
    notfound='error',        # Raise 'error' or 'ignore' if not found.
    reload=False,            # Whether to import if already available.
)

import my_module  # Import statement also works.

import imptools

imptools.enable_relative()

# Relative imports...