Bundling data files with PyInstaller (–onefile)

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Newer versions of PyInstaller do not set the env variable anymore, so Shish’s excellent answer will not work. Now the path gets set as sys._MEIPASS:

def resource_path(relative_path):
    """ Get absolute path to resource, works for dev and for PyInstaller """
    try:
        # PyInstaller creates a temp folder and stores path in _MEIPASS
        base_path = sys._MEIPASS
    except Exception:
        base_path = os.path.abspath(".")

    return os.path.join(base_path, relative_path)

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