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What's the difference between
from package import x, y
and
from package import (x, y)
I've seen this usage in Django source code but couldn't find the documentation for the second method (using round brackets around import)
284
Creating a Tuple A tuple is created by placing all the items (elements) inside parentheses () , separated by commas. The parentheses are optional, however, it is a good practice to use them. A tuple can have any number of items and they may be of different types (integer, float, list, string, etc.).
Tuples are used to store multiple items in a single variable. Tuple is one of 4 built-in data types in Python used to store collections of data, the other 3 are List, Set, and Dictionary, all with different qualities and usage. A tuple is a collection which is ordered and unchangeable.
Using the tuple() built-in function An iterable can be passed as an input to the tuple () function, which will convert it to a tuple object. If you want to convert a Python list to a tuple, you can use the tuple() function to pass the full list as an argument, and it will return the tuple data type as an output.
The statements are functionally equivalent.
From http://legacy.python.org/dev/peps/pep-0328/, the use of parentheses was approved for enclosing long lists of imports in a pythonic way:
from Tkinter import (Tk, Frame, Button, Entry, Canvas, Text,
LEFT, DISABLED, NORMAL, RIDGE, END)
It seems that parentheses were added for the second statement because the import list was too long.
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