On 2018-02-07 03:58, vinod bhaskaran wrote:
Hi, I am a beginner level programmer and in one assignment the question
given is:to remove ',' from a list after getting a comma separated
input
from console.
I gave the below (most print statements are for reference except the
last
print statement). but i get the attached error. can someone explain why
this error nd how to rectify?
inputdata = input ('Enter comma separated data \n')
type(inputdata)
inputlist = list(inputdata)
print(inputlist)
a = len(inputdata)
print(a)
print ('xxxxxxxxxxxxxxxx')
for b in range(0,a):
print(a)
a = a - 1
print(inputlist)
inputlist.remove(',')
print(inputlist)
The following might help you on your way:
Python 3.6.3 (default, Oct 6 2017, 08:44:35)
[GCC 5.4.0 20160609] on linux
Type "help", "copyright", "credits" or "license" for more information.
s = "a,b,c,d"
l = list(s)
l
['a', ',', 'b', ',', 'c', ',', 'd']
l2 = s.split()
l2
['a,b,c,d']
l3 = s.split(',')
l3
['a', 'b', 'c', 'd']
When 'list()' is handed a string, it returns a list of all characters in
the string; in your case many of them are commas.
The str method 'split' takes a string and splits it into an array: by
default it uses white space as the delimiter (your string has no white
space so it is returned as the only member of the list) but this (the
delimiter) can be set to what you want. In your case you want to split
on the comma character.
For "extra bonus points" you might want to look at the csv (comma
separated values) module- it might be helpful depending on your use
case.
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