Assigning comma separated strings to an array of tuples - python, numpy

Question

Some shell escape command gives me:

a=!ls /cygdrive/s | grep "^Something6" | tr -d [A-Za-z] | sed "s/_.*$//" | sed "s/-/ /" | sed "s/ /,/"

['64,2014-04-01', '64,2014-04-02', '64,2014-04-03', '64,2014-04-04', '64,2014-04-07', '64,2014-04-07', '64,2014-04-08', '64,2014-04-09', '64,2014-04-11', '64,2014-04-14']

The final goal is to put this into a database with the columns version and date. For intermediate experimenting I would like to put the array of strings into an array of tuples or into a dictionary without much copying around.

Like:

version = np.empty(1,dtype=object_)
date = np.empty(1,dtype=object_)
version = a[1:]

But I need to split the string at the ','. How can this be achieved most elegantly with one gulp?

The result should be something like:

(('64','2014-04-01'),
 ('64','2014-04-02'),
     etc.
     ...

anon582847382 · Accepted Answer · 2014-04-15 11:29:55Z

6

[tuple(x.split(',')) for x in a]

answered Apr 15, 2014 at 11:29

anon582847382

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3 Comments

Samy Arous Over a year ago

tuple(x.split(',')) would be nicer I think. It uses one less split :)

Krischu Over a year ago

Thanks. This works fine (btw., how can I mark a suggested solution here as solved or give stars of reward?)

anon582847382 Over a year ago

@Krischu Click on the tick below the vote counts so that it turns green and stays green. thank you. You also have enough reputation to give an upvote (click on the arrow above the 4)- which is also greatly appreciated. If you could do both, that would be great. :)

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