On 10/10/2013 06:41 PM, Terry Reedy wrote:
On 10/10/2013 9:33 AM, Ethan Furman wrote:
On 10/10/2013 12:43 AM, Terry Reedy wrote:
On 10/10/2013 2:45 AM, Chris Angelico wrote:
first_element = some_list[0]# Oops, may crash
some_list[0:1] always works, and sometimes is usable, but you st
On 10/10/2013 9:33 AM, Ethan Furman wrote:
On 10/10/2013 12:43 AM, Terry Reedy wrote:
On 10/10/2013 2:45 AM, Chris Angelico wrote:
first_element = some_list[0]# Oops, may crash
some_list[0:1] always works, and sometimes is usable, but you still
cannot index the slice.
Not if some_l
On 10/10/2013 12:43 AM, Terry Reedy wrote:
On 10/10/2013 2:45 AM, Chris Angelico wrote:
On Thu, Oct 10, 2013 at 5:12 PM, Peter Cacioppi
wrote:
I'm trying to think of a good example usage of echo-argument and. Maybe
something like
A bit awkward, echo-argument or is more naturally useful to
On Thu, Oct 10, 2013 at 6:43 PM, Terry Reedy wrote:
> y = x and 1/x
> One just has to remember that y==0 effectively means y==+-infinity ;-).
Good example. Extremely appropriate to situations where you're showing
a set of figures and their average:
Foo 1
Bar 3
Quux 7
Asdf 9
= 5
Let th
On 10/10/2013 2:45 AM, Chris Angelico wrote:
On Thu, Oct 10, 2013 at 5:12 PM, Peter Cacioppi
wrote:
I'm trying to think of a good example usage of echo-argument and. Maybe
something like
A bit awkward, echo-argument or is more naturally useful to me then
echo-argument and.
first_element
On 10/09/2013 11:12 PM, Peter Cacioppi wrote:
I'm trying to think of a good example usage of echo-argument and. Maybe
something like
possible = foo and foo.allowsit()
if (possible is None) :
print "foo not provided"
if (possible is False) :
print "foo doesn't allow it"
A bit awkward,
On Wednesday, October 9, 2013 4:54:03 PM UTC-7, Peter Cacioppi wrote:
> I really like the logic that Pythons "or" is not only short-circuit but
> non-typed.
>
>
>
> So I can say
>
>
>
> y = override or default
>
>
>
> and y won't necc be True or False. If override boolean evaluates to Tru
On Thu, Oct 10, 2013 at 5:12 PM, Peter Cacioppi
wrote:
> I'm trying to think of a good example usage of echo-argument and. Maybe
> something like
>
> possible = foo and foo.allowsit()
> if (possible is None) :
>print "foo not provided"
> if (possible is False) :
>print "foo doesn't allow
On Wednesday, October 9, 2013 4:54:03 PM UTC-7, Peter Cacioppi wrote:
> I really like the logic that Pythons "or" is not only short-circuit but
> non-typed.
>
>
>
> So I can say
>
>
>
> y = override or default
>
>
>
> and y won't necc be True or False. If override boolean evaluates to Tru
On Thu, Oct 10, 2013 at 11:36 AM, Steven D'Aprano
wrote:
> Other languages (Ruby, PHP, Javascript, etc.) also have
> truthy and falsey values, but in my opinion none of them have got it
> right. Python has a unifying model of truthiness: objects which represent
> "something" ought to be truthy, th
On Wed, 09 Oct 2013 16:54:03 -0700, Peter Cacioppi wrote:
> I really like the logic that Pythons "or" is not only short-circuit but
> non-typed.
>
> So I can say
>
> y = override or default
>
> and y won't necc be True or False. If override boolean evaluates to True
> (which, for most classes,
I really like the logic that Pythons "or" is not only short-circuit but
non-typed.
So I can say
y = override or default
and y won't necc be True or False. If override boolean evaluates to True
(which, for most classes, means not None) than y will be equal to override.
Otherwise it will be equ
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