在 Python 的 csv.reader 中删除神秘的双标签

Question

I'm taking a lesson on the CSV module.

Pesky '\\t\\t' 's are appearing on the last value of each line, which is an email value.

> ['first_name', 'last_name', 'email'] ['John', 'Doe',
> 'john-doe@bogusemail.com\t\t'] ['Mary', 'Smith-Robinson',
> 'maryjacobs@bogusemail.com\t\t'] ['Dave', 'Smith',
> 'davesmith@bogusemail.com\t\t']

I think this is happening because excel adds two tabs after the email, presumably to keep it from being a hyperlink. But this is TMI.

How can I read this in and strip the '\\t\\t' 's after each email?

Here's what I have so far:

with open('names cs.csv') as f:
    reader = csv.reader(f)
    for i in reader:
        print(i)

Answer 1

The CSV module does not have a way to resolve this. The easiest method would be to clean your data after the import.

Loop through your emails and replace all the '\\t' with a blank.

emails = ['jeffadfafadsf\t\t','asdfasdfadsfadf\t\t']

for i in emails:
    i = i.replace('\t','')
    print(i) 

#   The same can be accomplished with the following line of code:

emails = [i.replace('\t','') for i in emails]
print(emails)

Since your list has more fields, you will need to do something to the effect of this:

for i in reader:
    i[2] = i.replace('\t','')

If you are curious and want to read any documentation, it can be found here and the optional arguments (dialects and formatting parameters) documentation can be found here