Beginner's question about string's join() method

M

Macygasp

Hi,

Can anybody tell me why and how this is working:
'0,1,2,3,4,5,6,7,8,9'

I find this a little weird because join takes a sequence as argument;
so, it means that somehow, from the "str(a) ... " expression, a
sequence can be generated.

If I write this:<generator object at 0x7f62d2e4d758>
it seems i'm getting a generator.

Can anybody explain this to me, please?

Thanks in advance.
 
D

Diez B. Roggisch

Macygasp said:
Hi,

Can anybody tell me why and how this is working:

'0,1,2,3,4,5,6,7,8,9'

I find this a little weird because join takes a sequence as argument;
so, it means that somehow, from the "str(a) ... " expression, a
sequence can be generated.

If I write this:
<generator object at 0x7f62d2e4d758>
it seems i'm getting a generator.

Can anybody explain this to me, please?

string.join takes an iterable. A generator is an iterable. Expressions of
the form "<exp> for <vars> in <iterable>" are called "generator
expressions", and yield a generator.

Thus your code works.

Diez
 
M

Macygasp

string.join takes an iterable. A generator is an iterable. Expressions of
the form "<exp> for <vars> in <iterable>" are called "generator
expressions", and yield a generator.

Thus your code works.



Thanks, that's what I wanted to know.
 

Ask a Question

Want to reply to this thread or ask your own question?

You'll need to choose a username for the site, which only take a couple of moments. After that, you can post your question and our members will help you out.

Ask a Question

Members online

Forum statistics

Threads
473,744
Messages
2,569,484
Members
44,904
Latest member
HealthyVisionsCBDPrice

Latest Threads

Top