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vikas pal
11,563 Pointscan't understand iterable
can you give me a brief description of what is iterable i cannot understand it .please tell me .
4 Answers
Justin Noor
3,692 PointsHi Vikas Pal.
In simple terms, an iterable is any sequence of values that can be examined one by one, over and over again. For example if you recite the English alphabet you are iterating the alphabet.
Insofar as Python, iterables come in many forms, such as a list ['a', 'b', 'c', 'd'], a dictionary {'letter': 'a', 'b', 'c', 'd'}, or a string 'abcdefg'. Most iterables can be edited or manipulated, while some cannot (such as a tuple). Perhaps the most common way of iterating through a Python iterable is with a 'for loop'.
Let me know if that helps. Good luck!
Jason Anders
Treehouse Moderator 145,858 PointsHi Vikas,
The short answer -- an iterable is anything that can have it's individual items picked out. This can actually be any number of things.
For example, if you had a Dictionary with a bunch of colors in it, that dictionary would be an iterable because you could loop over and pull out each color individually.
I hope this helps some. If your still not sure on the meaning, you could give Google a shot to see other examples. (Hint: if you add "stack overflow" to the search request, you'll get some pretty good examples.)
vikas pal
11,563 Pointsjason tell me your facebook id so i send you friend request
Cosmas Gwenhamo
5,522 PointsFrom my personal research I think
Iteration is a general term for taking each item of something, one after another like what Justin and Vikas have said . Any time you use a loop(In computer programming, a loop is a sequence of instruction s that is continually repeated until a certain condition is reached) explicit or implicit, to go over a group of items, that is iteration.
In Python, iterable and iterator have specific meanings.
An iterable is an object that has an iter method which returns an iterator, or which defines a getitem method that can take sequential indexes starting from zero (and raises an IndexError when the indexes are no longer valid). So an iterable is an object that you can get an iterator from.
An iterator is an object with a next (Python 2) or next (Python 3) method.
Whenever you use a for loop, or map, or a list comprehension, etc. in Python, the next method is called automatically to get each item from the iterator, thus going through the process of iteration.
vikas pal
11,563 Pointsthank you all of you i understand it and i don't have any doubt.i understand it very far month but i forget to thank you and change the comment
vikas pal
11,563 Pointsvikas pal
11,563 Pointscan i know your facebook id to add you in friend
Sky Lu
1,260 PointsSky Lu
1,260 PointsHi Justin, The video said iterable means you can loop through . but what does this mean?