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Python Data Type Q&A » tuple » element 

1. How many bytes per element are there in a Python list (tuple)?    stackoverflow.com

For example, how much memory is required to store a list of one million (32-bit) integers?

alist = range(1000000) # or list(range(1000000)) in Python 3.0

2. Is there a way in Python to index a list of containers (tuples, lists, dictionaries) by an element of a container?    stackoverflow.com

I have been poking around for a recipe / example to index a list of tuples without taking a modification of the decorate, sort, undecorate approach. For example:

l=[(a,b,c),(x,c,b),(z,c,b),(z,c,d),(a,d,d),(x,d,c) . . ...

3. Getting the first elements per row in an array in Python?    stackoverflow.com

Let's say i have an array of Tuples, s, in the form of:

s = ((1, 23, 34),(2, 34, 44), (3, 444, 234))
and i want to return another Tuple, t, consisting ...

4. Find an element in a list of tuples    stackoverflow.com

I have a list 'a'

a= [(1,2),(1,4),(3,5),(5,7)]
I need to find all the tuples for a particular number. say for 1 it will be
result = [(1,2),(1,4)]
How do I do that. PS - This ...

5. how to get the index or the element itself of an element found with "if element in list"    stackoverflow.com

Does a direct way to do this exists?

if element in aList:
   #get the element from the list
I'm thinking something like this:
aList = [ ([1,2,3],4) , ([5,6,7],8) ]
element = [5,6,7]
if ...

6. How can I turn a single element in a list into multiple elements using Python?    stackoverflow.com

I have a list of elements, and each element consists of four seperate values that are seperated by tabs: ['A\tB\tC\tD', 'Q\tW\tE\tR', etc.] What I want is to create a larger list without the ...

7. How to sort a list by the 2nd tuple element in python and C#    stackoverflow.com

I had a list of tuples where every tuple consists of two integers and I wanted to sort by the 2nd integer. After looking in the python help I got this:

sorted(myList, ...

8. Select element within a list/tuple    stackoverflow.com

Hey bit of a beginners question here, I have connected to an imap server using the imaplib and fetched a email, it returns the following:

[('1 (BODY[HEADER.FIELDS (SUBJECT)] {62}', "Subject: Gmail is ...

9. Python yield returns characters instead of string from single-element tuple    stackoverflow.com

I'm using yield to process each element of a list. However, if the tuple only has a single string element, yield returns the characters of the string, instead of the whole ...

10. Sorting list that has tuple as an element with Python    stackoverflow.com

I have a list as follows.

[(5,), (2,), (4,), (1,), (3,), (6,), (7,), (8,)]
How can I sort the list to get
[1,2,3,4,5,6,7,8]
or
[8,7,6,5,4,3,2,1]
?

11. Collect every pair of elements from a list into tuples in Python    stackoverflow.com

Possible Duplicate:
Pairs from single list
I have a list of small integers, say:
[1, 2, 3, 4, 5, 6]
I wish to collect the sequential pairs and ...

12. Python (Enthought) Tuple / List Trait: how to access a specific element?    stackoverflow.com

Let's say I have a HasTraits object with a Tuple or a List attribute. Is there a way to set up an editor that would display (or allow to edit, ...

13. Reference an Element in a List of Tuples    stackoverflow.com

Sorry in advance, but I'm new to Python. I have a list of tuples, and I was wondering how I can reference, say, the first element of each tuple within ...

14. Naturally sort a list of alpha-numeric tuples by the tuple's first element in Python    stackoverflow.com

A previous stackoverflow question explains how to sort a list of strings alpha-numerically. I would like to sort a list of tuples alphanumerically by the tuple's first element. Example 1:

>>> ...

15. length of a tuple or a list containing only one element    bytes.com

Hi everybody, I have a question about the difference of behavior of "len" when applied on tuples or on lists. I mean: $ len( ( 'foo', 'bar' ) ) 2 $ len( ( 'foo' ) ) 3 $ len( [ 'foo', 'bar' ] ) 2 $ len( [ 'foo' ] ) 1 Why this behavior for the length computation of a ...

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