The View From My Picture Frame

Andrew Sullivan has great success getting people to figure out the location of random photos taken around the world, so I'm going to try it too. Except this is a photo of a painting. It's signed by someone named J. Gaston, and pretty obviously seems to be a Paris street scene. But is it? And which street? We're giving this to my sister-in-law in a couple of weeks, and I thought it would be nice if I could tell her what it's a painting of. Anyone know?

UPDATE: It's the Porte Saint Martin on St. Martin Boulevard in Paris. Thanks to Rjerrard and Skeptc for the ID. Pictures here and here.