How to use the split function on every row in a dataframe in Python?

Question

I want to count the number of times a word is being repeated in the review string

I am reading the csv file and storing it in a python dataframe using the below line

Answer 1

Well, the problem is with:

reviews["review"]

The above is a Series. In your first snippet, you are doing this:

reviews["review"][1].split("disappointed")

That is, you are putting an index for the review. You could try looping over all rows of the column and perform your desired action. For example:

for index, row in reviews.iterrows():
    print len(row['review'].split("disappointed"))