def get_ed25519ll():
    """Lazy import-and-test of ed25519 module"""
    global ed25519ll
    
    if not ed25519ll:
        try:
            import ed25519ll # fast (thousands / s)
        except (ImportError, __HOLE__): # pragma nocover
            from . import ed25519py as ed25519ll # pure Python (hundreds / s)
        test()
    
    return ed25519ll
dataset/ETHPy150Open chalasr/Flask-P2P/venv/lib/python2.7/site-packages/wheel/signatures/__init__.py/get_ed25519ll