Strip method at Python doesn't clear all

Question

i have some problem to strip '[' at my string (read from file). code

data = open(Koorpath1,'r')
for x in data:
    print(x)    
    print(x.strip('['))

result

[["0.9986130595207214","26.41608428955078"],["39.44521713256836","250.2412109375"],["112.84327697753906","120.34269714355469"],["260.63800048828125","15.424667358398438"],["273.6199645996094","249.74160766601562"]]

"0.9986130595207214","26.41608428955078"],["39.44521713256836","250.2412109375"],["112.84327697753906","120.34269714355469"],["260.63800048828125","15.424667358398438"],["273.6199645996094","249.74160766601562"]]

Desired output :

"0.9986130595207214","26.41608428955078","39.44521713256836","250.2412109375","112.84327697753906","120.34269714355469","260.63800048828125","15.424667358398438","273.6199645996094","249.74160766601562"

Thanks

`strip` removes characters *at the start or end of the string* only. Looks like it does exactly what it's supposed to. If you want to remove characters in the middle as well, you need `replace`. But really, what for? This looks like JSON and you should probably `json.loads` it. — deceze, Aug 10 '18 at 07:55
@deceze Oh thanks, yes it's json data that i dump (save) at a file.Any suggest ? — Sufyan saori, Aug 10 '18 at 07:57
@Hearner like that "0.9986130595207214","26.41608428955078","39.44521713256836","250.2412109375","112.84327697753906","120.34269714355469","260.63800048828125","15.424667358398438","273.6199645996094","249.74160766601562" — Sufyan saori, Aug 10 '18 at 07:58

score 0 · Accepted Answer · answered Aug 10 '18 at 07:55

0

It strips the first two '[', it seems you have one long string, you have to split it first.

datalist = data.split[',']
for x in datalist:
    # code here

If you don't want to split it and have it all in one string you need replace not strip (strip only works at the end and the beginning.

data = data.replace('[','')

answered Aug 10 '18 at 07:55

Bernhard

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8
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data = data.replace('[','') using replace work. Thankyou very much. – Sufyan saori Aug 10 '18 at 08:03
Glad I could help, if that solves your problem you should probably mark the answer as correct to "close" the question. – Bernhard Aug 10 '18 at 08:04

score 0 · Answer 2 · answered Aug 10 '18 at 08:02

0

If the data is JSON, then parse it into a Python list and treat it from there:

from itertools import chain
import json

nums = json.loads(x)
print(','.join('"%s"' % num for num in chain.from_iterable(nums)))

chain.from_iterable helps you "flatten" the list of lists and join concatenates everything into one long output.

answered Aug 10 '18 at 08:02

deceze

510,633
85
743
889

yes, it'is data json and i save it at a file. (i couldn't access the json data (API)). Thanks anyway – Sufyan saori Aug 10 '18 at 08:08

Strip method at Python doesn't clear all

2 Answers2