def _get_used_vcs_backend(link):
    for backend in vcs.backends:
        if backend.schemes in link.scheme:
            vcs_backend = backend(link.url)
            return vcs_backend
dataset/ETHPy150Open balanced/status.balancedpayments.com/venv/lib/python2.7/site-packages/pip-1.3.1-py2.7.egg/pip/download.py/_get_used_vcs_backend/swapped operands of `in`