Python string to two dimensionals list

Question

i have string like below :

FuntionStr='AccName,S,Balance,N,AccrInterest,N'

i would like to convert string to two dimensionals list :

FuntionList=[('AccName','S'),('Balance','N'),('AccrInterest','N')]

Please help give me any example code.

Regards,

That's not a two dimensional list, is a list of tuples. – lapinkoira Mar 25 '15 at 09:29 — lapinkoira, Mar 25 '15 at 09:29

Padraic Cunningham · Accepted Answer · 2015-03-25T09:41:33.087

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Your expected output is a list of tuples which you can get with zip, str.split and using iter which is more efficient than slicing.

FuntionStr='AccName,S,Balance,N,AccrInterest,N'
it = iter(FuntionStr.split(","))

print(list(zip(it,it)))
[('AccName', 'S'), ('Balance', 'N'), ('AccrInterest', 'N')]

If you have an uneven length list after splitting and you don't want to lose any data you can use zip_longest:

FuntionStr='AccName,S,Balance,N,AccrInterest,N,foo'
it = iter(FuntionStr.split(","))
from itertools import zip_longest
print(list(zip_longest(it, it,fillvalue="")))]
('AccName', 'S'), ('Balance', 'N'), ('AccrInterest', 'N'), ('foo', '')]

edited Mar 25 '15 at 09:41

answered Mar 25 '15 at 09:31

Padraic Cunningham

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Thank you for your code. it's help me full. – Sovankiry Mar 25 '15 at 09:35
@RimSovankiry, no worries, what happens if the strings are not even? – Padraic Cunningham Mar 25 '15 at 09:36
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wow it's cool to return [] .if a string is blank. – Sovankiry Mar 25 '15 at 09:41
I cannot import zip_longest in itertools. – Sovankiry Mar 26 '15 at 01:36
my python 2.7 doesn't have zip_longest. – Sovankiry Mar 26 '15 at 01:41
@RimSovankiry, it is `izip_longest` in python2 – Padraic Cunningham Mar 26 '15 at 09:49
Thank you @Padraic Cunningham. – Sovankiry Mar 27 '15 at 03:10

score 1 · Answer 2 · answered Mar 25 '15 at 09:33

1

To get this:

FuntionStr='AccName,S,Balance,N,AccrInterest,N'
my_list = FuntionStr.split(',')
print my_list
print zip(my_list[::2], my_list[1::2])

OUTPUT:

[('AccName','S'),('Balance','N'),('AccrInterest','N')]

answered Mar 25 '15 at 09:33

Stephen Lin

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itzMEonTV · Answer 3 · 2015-03-25T09:38:08.017

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Try this

temp = FuntionStr.split(',')
>>>zip(temp[::2], temp[1::2])
[('AccName', 'S'), ('Balance', 'N'), ('AccrInterest', 'N')]

edited Mar 25 '15 at 09:38

answered Mar 25 '15 at 09:32

itzMEonTV

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Python string to two dimensionals list

3 Answers3