Parts interchangeability doesn't make it a Python, just as Italian made parts may fit a Colt Single Action Army; but an Italian made SAA is still just a copy.
Not to put too fine a point on things, but if it's not a Colt, it's not a 1911. It may be a "1911 style" pistol, but a Kimber, Springer, or S&W will never be a genuine 1911.
Out of the box, the Pietta is not fitted and finished the way a Python was. You will have to pay extra to have the action and finish redone. In the end, you still have a Python look-alike, and it will never be a Colt Python.
No kidding...
I NEVER SAID IT WAS A
"COLT" Python.
SO WHAT?
"Suppose you see a bird walking around in a farm yard. This bird has no label that says 'duck'. But the bird certainly looks like a duck. Also, he goes to the pond and you notice that he swims like a duck. Then he opens his beak and quacks like a duck. Well, by this time you have probably reached the conclusion that the bird is a duck, whether he's wearing a label or not." - Ambassador Richard Cunningham Patterson Jr.
Therefore, In actual FACT... It IS a PYTHON. Albeit a PIETTA PYTHON.
Yet AGAIN... SO WHAT??
A Kimber 1911
IS as much a 1911 as a COLT 1911 is. A Uberti 1860 Army
is as much an 1860 Army as a COLT 1960 Army is. A DPMS AR-15
is as much an AR-15 as a COLT AR-15 is. A Cimarron SAA
is as much an SAA as a COLT SAA.
Your distinction is very nearly meaningless.
If the ONLY difference are the rollmarks, If the parts are interchangable, and the gun is made from the same specs as a python, then it IS BY ANY MEASURE a Python. Again, as I said - it is a "Pietta Python"... not a COLT PYTHON.
As you said - and I agree; the polish and action will likely not be QUITE the equal of a NIB factory fired only "Colt" Python... but I wager it will be closer than you and many others like. And that's good enough for me!
Ever hear of the "second Gen" and "third Gen" Colt signature series black powder percussion pistols? You know - the ones actually made by uberti? Marked as a Colt BY Colt?
I wouldnt be TOO awful surprised - if the Pietta Python sells well; to see a similar deal resulting in a "second Gen" Python... or even "Python II" from Colt... Would it be more expensive than the box stock Pietta ? Sure. Would it be remotely near the price of an old mint condition Colt Python ?
I think we all know the answer to that.
Made by Pietta, imported and finished by Colt. Trigger jobs and a nice Polish are not - all naysayers to the contrary; all THAT difficult.
In any event - I look forward to owning a PYTHON that I can actually carry and shoot; and use as guns are intended to be used, without worrying about fingerprints, carbon buildup, and honest wear.