I don't use a Python but it should not cause any leaks. Faucets are made to handle the pressure of municipal water. Most new houses have a pressure regulator to reduce the water pressure so it does not damage the seals of the valves and faucets. In areas such as in the hills, they use a booster pump to increase water pressure so they can service all of the homes with decent pressure. Those areas will have higher than normal water pressure. The fixtures may eventually leak but not blow up and cause any major problem. I believe it is the faucet that is getting old that is causing the problem. If you do change it out, go with a well known brand such as Delta or Moen. Certain brands have a lifetime warranty. Good Luck.