The vote, vital to unlocking emergency financing from European partners as early as Thursday, left Prime Minister Alexis Tsipras weakened by a revolt in his leftist Syriza party but clinging to power for now. The European Central Bank’s governing council, meeting in Frankfurt, was expected to ease its funding squeeze on shuttered Greek banks, the first step toward permitting them to reopen after nearly three weeks’ closure while cash rationing and other capital restrictions will remain in place.