[Tutor] Multiple identical keys in a dictionary
wheelege
wheelege@tsn.cc
Sun, 27 May 2001 02:24:28 +1000
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Hi all,
I'm implementing a high score table for this game I'm writing in =
python (tkinter) and I thought it would be nice to use a dictionary for =
all the high scores - with the score as the key.
A rather annoying problem has presented itself in that if somebody =
scores the same as another then one of the two (or however many are =
equal) is kept and the rest overwritten. The reason I had thrown out a =
list was because I want to store things other than just the score (such =
as name, highest level reached, difficulty level).
The same thing will happen if I use strings and convert to int then =
sort, then convert back to a string for updating the dict.
Anyway, the essence of the problem is...
>>> d =3D {100: ['Jim', 'Hard', 10], 50: ['Bob', 'Easy', 6], 20: =
['Fred', 'Silly', 2]}
>>> d[50] =3D ['Darren', 'Medium', 3]
>>> d
{100: ['Jim', 'Hard', 10], 20: ['Fred', 'Silly', 2], 50: ['Darren', =
'Medium', 3]}
And I'm probably asking for the impossible, but what I'd like instead =
is...
>>> d =3D {100: ['Jim', 'Hard', 10], 50: ['Bob', 'Easy', 6], 20: =
['Fred', 'Silly', 2]}
>>> d[50] =3D ['Darren', 'Medium', 3]
>>> d
{100: ['Jim', 'Hard', 10], 20: ['Fred', 'Silly', 2], 50: ['Darren', =
'Medium', 3], 50: ['Bob', 'Easy', 6]}
>>>=20
So I'm left thinking - what other data structure to use? A class for =
just the scores seems a little excessive...especially as I'm already =
using a class to handle all the reading and writing to the actual file =
and things like that.
Thanks,
Glen.
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<BODY bgColor=3D#ffffff>
<DIV> Hi all,</DIV>
<DIV> </DIV>
<DIV> I'm implementing a high score table for this game I'm =
writing in=20
python (tkinter) and I thought it would be nice to use a dictionary for =
all the=20
high scores - with the score as the key.</DIV>
<DIV> A rather annoying problem has presented itself in that if =
somebody=20
scores the same as another then one of the two (or however many are =
equal) is=20
kept and the rest overwritten. The reason I had thrown out a list =
was=20
because I want to store things other than just the score (such as name, =
highest=20
level reached, difficulty level).</DIV>
<DIV> The same thing will happen if I use strings and convert to =
int then=20
sort, then convert back to a string for updating the dict.</DIV>
<DIV> Anyway, the essence of the problem is...</DIV>
<DIV> </DIV>
<DIV>>>> d =3D {100: ['Jim', 'Hard', 10], 50: ['Bob', 'Easy', =
6], 20:=20
['Fred', 'Silly', 2]}<BR>>>> d[50] =3D ['Darren', 'Medium',=20
3]<BR>>>> d<BR>{100: ['Jim', 'Hard', 10], 20: ['Fred', 'Silly', =
2], 50:=20
['Darren', 'Medium', 3]}<BR></DIV>
<DIV> And I'm probably asking for the impossible, but what I'd =
like=20
instead is...</DIV>
<DIV> </DIV>
<DIV>>>> d =3D {100: ['Jim', 'Hard', 10], 50: ['Bob', 'Easy', =
6], 20:=20
['Fred', 'Silly', 2]}<BR>>>> d[50] =3D ['Darren', 'Medium',=20
3]<BR>>>> d<BR>{100: ['Jim', 'Hard', 10], 20: ['Fred', 'Silly', =
2], 50:=20
['Darren', 'Medium', 3], 50: ['Bob', 'Easy', 6]}<BR>>>> </DIV>
<DIV> </DIV>
<DIV> So I'm left thinking - what other data structure to =
use? =20
A class for just the scores seems a little excessive...especially as I'm =
already=20
using a class to handle all the reading and writing to the actual file =
and=20
things like that.</DIV>
<DIV> </DIV>
<DIV> Thanks,</DIV>
<DIV> Glen.</DIV></BODY></HTML>
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