On Oct 16, 7:38 pm, Carl Banks wrote:
> You would burden everyone who writes a custom iterator to provide a
> __getitem__ method just because you're too lazy to type out the word
> islice?
No, of course not. That would be stupid. Custom iterators are
iterators, so they would also get the default
On Oct 16, 3:54 am, Terry Reedy wrote:
> There is already an obvious standard way to do this.
>
> it =
> next(it) #toss first item
> for item in it:
>
>
That fails if there is no first item. You're taking one corner case
and saying there's an easy way to do it, which is more or less true,
I was just working with a generator for a tree that I wanted to skip
the first result (root node.)
And it occurs to me, why do we need to do:
import sys
from itertools import islice
my_iter = islice(my_iter, 1, sys.maxint)
When we could simply add slice operations to generators?
for x in my_it
Almost every time I've had to do parsing of text over the last 5 years
I've needed this function:
def find_first(s, subs, start=None, end=None):
results = [s.find(sub, start, end) for sub in subs]
results = [r for r in results if r != -1]
if results:
return min(results)
re
On Oct 11, 9:22 pm, Benjamin <[EMAIL PROTECTED]> wrote:
> Load:
> a = 2
> Module(body=[Assign(targets=[Name(id='a', ctx=Store())],
> value=Num(n=2))])
>
> Store:
> print a
> Module(body=[Print(dest=None, values=[Name(id='a', ctx=Load())],
> nl=True)])
>
> Del:
> del a
> Module(body=[Delete(targets=
In the _ast module Attribute, Subscript, Name, List, Tuple all have an
expr_context associated with them which is defined as:
expr_context = Load | Store | Del | AugLoad | AugStore | Param
I have no idea what they mean, and what's the difference between them.
I'm porting _ast to IronPython and th
On Nov 17, 12:07 pm, "walterbyrd" <[EMAIL PROTECTED]> wrote:
> I think I have read somewhere that using Python to develop
> web-applications requires some restarting of the Apache server, whereas
> PHP does not.
It depends what you do. CGI's operate much like PHP. mod_python has
auto-reloading (an
Thanks for all of the replies, I'm glad I posted here, you guys have
been very helpful.
>Obviously, I only know what you've told us about your data, but 20-100
>queries? That doesn't sound right ... RDBMSes are well-
>studied and well-understood; they are also extremely powerful when used
>to the
Hi Steve,
The backup thread only holds the lock long enough to create an
in-memory representation of the data. It writes to disk on it's own
time after it has released the lock, so this is not an issue.
If you're saying what I think you are, then a single lock is actually
better for performance t
I don't beleive that it does. You can however call ping() on the
connection which should attempt an automatic reconnection.
See the docs for mysql_ping:
http://dev.mysql.com/doc/mysql/en/mysql-ping.html
I've never tested that, but I have a need for it also so let me know if
it works or not.
-Da
Hi Paul,
>Do you mean a few records of 20+ MB each, or millions of records of a
>few dozen bytes, or what?
Well they're objects with lists and dictionaries and data members and
other objects inside of them. Some are very large, maybe bigger than
20MB, while others are very numerous and small (a h
This is not really Python specific, but I know Python programmers are
among the best in the world. I have a fair understanding of the
concepts involved, enough to realize that I would benefit from the
experience of others :)
I have a shared series of objects in memory that may be > 100MB. Often
to
My first reaction was that this is terrible, else clauses on loops are
confusing enough. But if I think about it more, I'm warming up to the
idea. Also/Else for loops is clear, symmetrical, and would be useful.
Reversing the meanign of else will break code, but it's not used that
frequently, and i
If two objects are of equal value you can compare them with ==. What I
want to do is find out if two objects are actually just references to
the same object, how can I do this in Python?
Thanks
--
http://mail.python.org/mailman/listinfo/python-list
Use the dir() function
dir(myClass)
returns a list of strings
-Dan
--
http://mail.python.org/mailman/listinfo/python-list
Awesome, wrapping that into a function:
def getargs(func):
numArgs = func.func_code.co_argcount
names = func.func_code.co_varnames
return names[:numArgs]
short, concise, and it works :)
variables declared inside the function body are also in co_varnames
but after the arguments only it s
You can take a dictionary of key/value pairs and pass it to a function as
keyword arguments:
def func(foo,bar):
print foo, bar
args = {'foo':1, 'bar':2}
func(**args)
will print "1 2"
But what if you try passing those arguments to a function
def func2(bar,zoo=''):
print bar, zoo
H
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