wi-fi in cafes in Paris

We're heading to Paris for a few weeks and wonder if wi-fi is available in most cafe's.
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Hi. I don't know the answer to your question, but I edited the title to put Paris in the title, so more people who know Paris might pay attention.

A café in Paris would not live long without wi-fi nowdays. Yes, most have and some have a sign outdor saying wi-fi. Use your smartphone or tab and search. Most connections have a name that is similar to the café name. Most are locked, but order a Pernot and ask for the code.