Converting String in Array position into position and return the order in python

Question

I've been working with lists and arrays.In this task I need to return (in order) the sentence but instead of returning the sentence in order I need to return the positions the words are in, in order So here is my current code:

sentence = "Hello my name is Daniel, hello Daniel"
sentence = sentence.upper()
sentence = sentence.split()
list = sentence

which returns:

['HELLO', 'MY', 'NAME', 'IS', 'DANIEL,', 'HELLO', 'DANIEL']

but the desired out come is:

[0, 1, 2, 3, 4, 0, 4]

Does anyone know how I could get this outcome from the given code by adding more code to it?

In your model, both 'DANIEL,' and 'DANIEL' are being represented by 4. Do you need to strip punctuation? — mgilson
– mgilson, Commented Feb 17, 2017 at 16:06
@mgilson in this case punctuation does not affect the outcome, so 'Daniel,' and 'Daniel' are treated as the same and should return the same position — D. Forrester
– D. Forrester, Commented Feb 17, 2017 at 16:08

McGrady · Accepted Answer · 2017-02-17 16:11:22Z

2

It seems that you want to get Daniel not Daniel, so you should replace the comma or remove it.And then use index method to return the lowest index in list that obj appears.

sentence = "Hello my name is Daniel, hello Daniel"
sentence = sentence.replace(',','').upper()
sentence = sentence.split()


print [sentence.index(i) for i in sentence]

And it returns

[0, 1, 2, 3, 4, 0, 4]

edited Feb 17, 2017 at 16:11

answered Feb 17, 2017 at 16:07

McGrady

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4 Comments

D. Forrester Over a year ago

thank you!!! Would this method work if the variable 'sentence' is a sentence inputted by the user?

McGrady Over a year ago

@D.Forrester yeah.If this helps,please accept this answer.

D. Forrester Over a year ago

sentence = sentence.replace(",",'"',"'").upper() AttributeError: 'list' object has no attribute 'replace' this error has occur when I made sentence into a user inputted variable. do you know why? @McGrady

McGrady Over a year ago

@D.Forrester Make sure sentence is a string,and then use split() method.To get the input as a string,you should use raw_input in Python2 or input in Python3.

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