Unpack Variable List

Question

I have a list:

row = ["Title", "url", 33, "title2", "keyword"] 

Is there a more pythonic way to unpack these values, for example:

 title, url, price, title2, keyword = row[0], row[1], row[2], row[3], row[4] 

Answer 1

Something like that?

 >>> row = ["Title", "url", 33, "title2", "keyword"] >>> title, url, price, title2, keyword = row 

Also for the record, note that your example ends with an IndexError (Python lists are zero-based).

EDIT: The above note was written before the OP example was installed ...

Answer 2

In fact, python automatically unpacks containers when variables are separated by commas. This assigns each element in row variables on the left:

 title, url, price, title2, keyword = row 

After this assignment, title has the value “Heading”, price has a value of 33, etc.

Answer 3

You can also easily unzip it into a class or namedtuple :

 from collections import namedtuple row = ["Title", "url", 33, "title2", "keyword"] Entry = namedtuple("Entry", "title url price title2 keyword") new_entry = Entry(*row) print(new_entry.title) # Title 

Answer 4

Also, if you only need the first few variables, in Python 3 you can use:

 row = ["Title", "url", 33, "title2", "keyword"] title, url, *_ = row 

This is a good way to extract the first few values ​​without using explicit indexes.