PARIS — November is not January. That thought has been filtering through the statements of most French politicians and the news media, and most people seem to understand.

Unlike the response in January after attacks at the satirical newspaper Charlie Hebdo and elsewhere left 17 dead, there were no grand public appeals for solidarity with Muslims after the Friday attacks that left 129 dead in Paris. There were no marches, few pleas not to confuse practitioners of Islam with those who preach jihad.

Instead, there was a palpable fear, even anger, as President François Hollande asked Parliament to extend a state of emergency and called for changing the Constitution to deal with terrorism. It was largely unspoken but nevertheless clear: Secular France always had a complicated relationship with its Muslim community, but now it was tipping toward outright distrust, even hostility.

The shift could be all the more tempting because the government is struggling to find its footing politically as it is threatened on its far right by the anti-immigrant National Front party.