The sorting hat seems to think Harry is a pure-blooded wizard.

[garybec]

No: HPFGUIDX 105689

Jenni
>   I'm sitting here watching the ABC Family showing of Harry Potter 
and the
> Sorcerer's Stone movie and it suddenly occurred to me that the 
sorting hat
> does seriously consider putting Harry into Slytherin.  We also 
know, from the
> Sorting Hat's New Song in OoP, that Slytherin house only takes 
pure-blooded
> wizards.  Putting two and two together I come out with Harry being 
considered
> a pure-blood wizard, suggesting that the mere fact that Lily was 
in fact a
> trained wizard nullifies the fact that she, herself, was muggle-
born.
> 
>   For reference, here are relevant quotes from out of the "Sorting 
Hat's New
> Song" (p205, US edition):
> 
> ------
> Said Slytherin, "We'll teach just those
> Whose ancestry is purest."
> ... 
> These differences caused little strife
> When first they came to light,
> For each of the four founders had
> A House in which they might
> Take only those they wanted, so,
> For instance, Slytherin
> Took only pure-blood wizards
> Of great cunning, just like him,
> ------
> 
> Jenni

Becki's says;

I am watching the movie too, I just love the extra scenes.   Be that 
as it may,  the reference to the sorting hat considering putting 
Harry into Slytherin was only after Harry told it not to.  If Harry 
had never mentioned it, would have the sorting hat?  Possibly the 
sorting hat has a sense of humor and was just messing with him?

Another point to your other point of the poem is that Tom Riddle was 
most deffinatly a half-blood and not only was he in Slytherin, he 
was the heir...

Possibly Slytherin had no choice if he was the only one left?  
Haven't figured that one out yet, quite a bit of contradictions 
going around on that one.

Enjoy the movie!
Becki