Looks like a late 70's (77-78)UO10 "Super light". The top sticker on the seat tube will confirm. If it is the UO10 It should be about 28lb and steel frame. If it says it is Reynolds 531 you got a PX10. That would be a just about off the shelf race bike that has some following
Its a good commuter bike general get around transport.
Peugeot was a HUGE manufacture back in the day. They made decent bikes in the upper grades that yours appears to be. That one has the better components then most of the bikes they put out at the time. Its a rider but the shifting will be a little clunky over the newer bikes with the hyper glide cassettes but it is a sturdy bike. Just make sure you keep a good chain on it. The Chain rings are aluminum and will be fubar quick if you ride it with stretched chains.
Go get some "Mothers wheel polish" from the auto parts store. The cranks, Chain rings and rims polish up really nice.
Enjoy it. Looks like it is in good shape.
Couple links.
http://www.cyclespeugeot.com/ This one has the US catalogs that cover that range of bike.
http://retropeugeot.com/ More of the French/ Europe models
Shot of my P8 with the rims and cranks polished up.
