Python join why is it string join list instead of list join string

0 votes

This has always confused me. It seems like this would be nicer:

my_list = ["Hello", "world"]
print my_list.join("-")
# Produce: "Hello-world"

Than this:

my_list = ["Hello", "world"]
print "-".join(my_list)
# Produce: "Hello-world"

Is there a specific reason it is like this?

May 14, 2018 in Python by anonymous
341 views

1 answer to this question.

0 votes

950down voteaccepted

It's because any iterable can be joined, not just lists, but the result and the "joiner" are always strings.

E.G:

import urllib2
print '\n############\n'.join(
    urllib2.urlopen('http://data.stackexchange.com/users/7095'))
answered May 15, 2018 by aryya
• 7,440 points

Related Questions In Python

0 votes
1 answer

Python join: why is it string.join(list) instead of list.join(string)?

This is because join is a "string" ...READ MORE

answered Jul 30, 2018 in Python by Priyaj
• 58,060 points
350 views
0 votes
1 answer

Why is it string.join(list) instead of list.join(string)?

It's because any iterable can be joined ...READ MORE

answered Dec 2, 2020 in Python by Gitika
• 65,850 points
108 views
0 votes
1 answer

Convert string list of dict from csv into JSON object in python

You can use the ast module Ex: import ast s = """[{'10': ...READ MORE

answered Sep 12, 2018 in Python by Priyaj
• 58,060 points
1,872 views
0 votes
1 answer

Convert string list of dict from csv into JSON object in python

You can use the ast module Ex: import ast s = """[{'10': ...READ MORE

answered Sep 24, 2018 in Python by Priyaj
• 58,060 points
300 views
0 votes
1 answer

Why is Python scoping made the way it is?

The likeliest answer is that it just ...READ MORE

answered Nov 5, 2018 in Python by Nymeria
• 3,540 points

edited Dec 17, 2018 by Nymeria 174 views
0 votes
1 answer

What is the recommended way to randomize a list of strings using Python?

Hi. Nice question. Here is the simplified answer ...READ MORE

answered Jan 18, 2019 in Python by Nymeria
• 3,540 points
304 views
0 votes
1 answer

How to zip with a list output in Python instead of a tuple output?

Good question - Considering that you are ...READ MORE

answered Feb 7, 2019 in Python by Nymeria
• 3,540 points
797 views
0 votes
1 answer

Is it enough to only create checksum of a zip package instead of each file?

I assume you are asking about the ...READ MORE

answered May 8, 2019 in Python by SDeb
• 13,300 points
1,380 views
0 votes
1 answer

How to get the size of a string in Python?

If you are talking about the length ...READ MORE

answered Jun 4, 2018 in Python by aryya
• 7,440 points
572 views
+7 votes
8 answers

What exactly is the function of random.seed() in python?

The seed method is used to initialize the ...READ MORE

answered Oct 29, 2018 in Python by Rahul
117,811 views
webinar REGISTER FOR FREE WEBINAR X
Send OTP
REGISTER NOW
webinar_success Thank you for registering Join Edureka Meetup community for 100+ Free Webinars each month JOIN MEETUP GROUP