I don't have the python but do have the cheap knock off version and had a similar problem. In the end I found that a standard cheapo 15mm valve worked well, like this one:
15mm isolating valve
Discard the end caps and you're left with a double male, where one end screwed perfectly into the tap head and the other end then connected perfectly to one of the included plastic attachments that came with it.
I know it's an old thread but didn't seem answered and hopefully will help someone.
15mm isolating valve
Discard the end caps and you're left with a double male, where one end screwed perfectly into the tap head and the other end then connected perfectly to one of the included plastic attachments that came with it.
I know it's an old thread but didn't seem answered and hopefully will help someone.