I prefer Lua-scripting based approach: https://github.com/bbangert/retools/blob/master/retools/lock.py https://github.com/bbangert/retools/blob/master/retools/l

I prefer Lua-scripting based approach: https://github.com/bbangert/retools/blob/master/retools/lock.py https://github.com/bbangert/retools/blob/master/retools/lock..., but I had to implement something similar to your code to support older Redis versions.