Question for those who use a Python (in the U.K.)

So I have a friend who is leaving the hobby and is going to sell me his barely used Python. Now, I have your bog-standard, U.K. mixer tap that doesn’t unscrew nor can I remove the plastic aerator to see if there is any threading inside of it to use the brass adapter. Question is, can I use a mixer tap connector like the Hozelock one: https://www.hozelock.com/product/mixer-tap-connector/ and then connect the 69A universal adapter Python Universal Adapter for Aquarium https://www.amazon.co.uk/dp/B003OYKMWU/?tag= to that? Will this work, or will I still need some other kind of adapter? I am assuming that the threading on the 69A piece should screw into the Python okay since it’s an official part? I am just wondering if the clamp on the adapter will hold onto the male end of the mixer tap connector, as I don’t think my water pressure is super powerful or anything? Anyone have any experience with something like this?

Well, nobody ever responded to me, I am assuming because nobody really knew the answer. Anyways, just in case anyone else might be interested, I managed to get the Python to work on my sink using a Hozelock adapter. I tied slipping on the little rubber universal adapter that came with my Python, and I managed to get it to fit over the little plastic aerator thingy that is attached to the end of my faucet. I screwed it tight with the clamp, it stuck and didn't leak any water when I turned the tap on. Great, so I thought, until I attached the Python, but then just the sheer weight of the python pulled the adapter off of my tap, so it certainly wasn't going to hold with the water pressure. Then I tried the sink in my bathroom as it's also a mixer tap and the little aerator unscrews and the python adapter screws perfectly fine into the tap. Unfortunately, the water pressure on my bathroom sink wasn't strong enough to suck water from the tank and it ended up pushing the water back into the tank and started filling it!

Took one last chance and got a Hozelock universal tap connector and, it came with a washer that created a perfect seal on my kitchen tap.I then stuck the Python adapter onto the male end of the Hozelock, and it was a perfect fit. Hooked up the Python pump to the adapter and then screwed the Python on. It worded perfectly, and it made the water change on my 350L so easy! The seals were pretty much perfect and I was bale to drain about 30/35% of my tank in a little less than 8 mins or so. It refilled my tank even faster, and the only issue I had was that there was a little bit of dribble spraying out of the adapters when I turned the Python to "fill" but had the hose closed between the time I took it from the sink to the tank, obviously because of the pressure. All in all, I think that it was well worth the purchase, even though it took a tiny bit of trial and error with an adapter. The first picture is my kitchen tap and the second one is my tap with the Hozelock connecter attached, and the rubber Python adapter attached to that. The Python pump then screws directly onto the adapter.

Good for you that you got it working! (I never replied to your post as I'm not in the UK.)
I never cared much for siphoning even though it's far better than hauling buckets!
I do like the Python type hose as it's much more flexible than garden hose and doesn't kink like garden hose can. I use an inexpensive submersible pump to pump the water to either the sink or in good weather, out in the yard.
In some cases, I use the same pump to refill tanks with filtered water (I pre-filter water (removing nitrates) in the basement into a 44g Rubbermade Brute trash can). Upstairs, I'm using a faucet adapter to refill the 60g display tank (I do smaller, more frequent water changes here due to the amount of dissolved CO2 in the well water).

Yeah, IDK why I didn't try it sooner? Actually I do know, and it's because at my old house I would have needed the 50ft Python as my tank was on the other side of the house from either the kitchen or bathroom, and the price put me off (£85+ here). I was able to get the 25ft for less than half of that, and in my new house the tank is 23.5 ft away form kitchen sink, so pretty easy. I couldn't bear the thought of buckets anymore now that I have a 350!