python list from both strings and for loop

Question

Is there a way to create a list using both strings and a generator (for loop).

list() only takes one argument. The only way I can see so far is:

row = ['string1','string2']+list((t.string3[-7:]) for t in tobject)

What am I missing?

Well I mean... what are you hoping it might look like? What are you hoping to gain compared to what you have now? — Karl Knechtel
– Karl Knechtel, Commented Jul 23, 2012 at 14:11

Scotty · Accepted Answer · 2012-07-23 14:07:02Z

4

Do you need to do it in only one line? chain() works, but it looks so unreadable to me. The following is probably less elegant, but I think it's far more readable:

row = ['string1', 'string2']
row.extend(t.string3[-7:] for t in tobject)

answered Jul 23, 2012 at 14:07

Scotty

2,5082 gold badges17 silver badges20 bronze badges

Sign up to request clarification or add additional context in comments.

2 Comments

senderle Over a year ago

Actually, in this particular case, I find this more elegant than chain.

mgilson Over a year ago

What makes this less elegant? Sometimes 2 lines are better than 1. (+1 from me)

jamylak · Accepted Answer · 2012-07-23 14:05:45Z

2

import itertools
list(itertools.chain(('string1','string2'), (t.string3[-7:] for t in tobject)))

answered Jul 23, 2012 at 14:05

jamylak

134k30 gold badges238 silver badges240 bronze badges

Comments

Katriel · Accepted Answer · 2012-07-23 14:06:33Z

1

No, you have to concatenate two lists.

You may prefer to chain the iterables and then call list on them once.

answered Jul 23, 2012 at 14:06

Katriel

124k19 gold badges141 silver badges172 bronze badges

Collectives™ on Stack Overflow

python list from both strings and for loop

3 Answers 3

2 Comments

Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

2 Comments

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related