At long last...

[Carl Banks]

Tuples will have an index method in Python 2.6.

I promise I won't indiscriminately use tuples for homogenous data.
Honest. Scout's honor. Cross my heart.


Carl Banks

 

[Terry Reedy]

Tuples will have an index method in Python 2.6.

I promise I won't indiscriminately use tuples for homogenous data.
Honest. Scout's honor. Cross my heart.

Use them as you want. This change came about because .index was
included in the 3.0 Sequence ABC (abstract base class) and tuple was
included as a sequence, so .... something had to give. The result was
tuple getting the full suite of immutable sequence methods. And then
there was no good reason to not backport ;-).

tjr

 

[Carl Banks]

Use them as you want. This change came about because .index was
included in the 3.0 Sequence ABC (abstract base class) and tuple was
included as a sequence, so .... something had to give. The result was
tuple getting the full suite of immutable sequence methods. And then
there was no good reason to not backport ;-).

The last time I needed index on a tuple was in fact for partially non-
homogenous data. I forget why, but I needed to treat arguments after
a certain value different from the front arguments. So I wanted to do
something like:

def something(*args):
firstspecial = args.index(0)

'Cept I couldn't.


Carl Banks

 

[Dan Bishop]

The last time I needed index on a tuple was in fact for partially non-
homogenous data.  I forget why, but I needed to treat arguments after
a certain value different from the front arguments.  So I wanted to do
something like:

def something(*args):
    firstspecial = args.index(0)

'Cept I couldn't.

Why didn't you just use a list inside the tuple?

 

[Carl Banks]

Why didn't you just use a list inside the tuple?

I don't remember, but knowing myself I was probably implementing some
sort of declarative function that I would call 200 times with hand-
entered data to build some kind of dataset.

Normally I would not design functions like that, but when "ease of
data entry" is the predominant concern I will do all kinds of hacky
stuff.


Carl Banks