knotwell at my-deja.com knotwell at my-deja.com
Tue Jan 11 19:06:50 EST 2000

• Previous message (by thread): a small problem
• Next message (by thread): a small problem
• Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

---

Hello all--

Is the following a bug?

>>> q = [(1,'dd'),(2,'ddd'),(3,'ddddd')]

>>> reduce(lambda x,y: x[0] + y[0],q)

Traceback (innermost last):
  File "<stdin>", line 1, in ?
  File "<stdin>", line 1, in <lambda>
AttributeError: __getitem__

Meanwhile, map(lambda x: x[0],q) --> [0,1,2] as one would expect.
Similarly, filter appears to work as well.  If this isn't a bug, why
should reduce behave differently than filter and map?

Thanks.

--Brad


Sent via Deja.com http://www.deja.com/
Before you buy.

---

• Previous message (by thread): a small problem
• Next message (by thread): a small problem
• Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

---

More information about the Python-list mailing list