Is the pyro a woman in team fortress 2

Yes. In the upper right corner of the menu, it shows a random class, the longest life you ever had as the class and "Why don't you give him a shot?" except for the Pyro, where it says "Why dont you give her a shot?".
It was hinted in Easter eggs that the Pyro is a woman such as the Yellow Flowered Purse in the locker on some maps, which hangs over the Pyros uniform.