European shares notched up their best week in two months on Friday as concerns over an energy supply crunch eased, bringing some calm to investors worried about a big rise in interest rates and a political crisis in Italy. The pan-European STOXX 600 index closed 0.3% up at its highest level since June 10, while for the week it jumped nearly 2.9%. While Russian gas flows to Europe resumed after a scheduled maintenance outage, market participants fretted as euro zone business activity unexpectedly shrank in July, due to a downturn in manufacturing and a near-stalling of service sector growth.