Printing all the values from multiple lists at the same time

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Suppose I have 3 lists such as these

l1 = [1,2,3]
l2 = [4,5,6]
l3 = [7,8,9]

how do I get to print out everything from these lists at the same time ? What's the pythonic way to do something like that ?

for f in l1,l2 and l3:
    print f 

This only seems to be taking 2 lists into account.

Desired output: for each element in all the lists, I'm printing them out using a different function

def print_row(filename, status, Binary_Type):
    print " %-45s %-15s %25s " % (filename, status, Binary_Type)

and I Call the above function inside the for loop.


I think you might want zip:

for x,y,z in zip(l1,l2,l3):
    print x,y,z  #1 4 7
                 #2 5 8
                 #3 6 9

What you're doing:

for f in l1,l2 and l3:

is a little strange. It is basically equivalent to for f in (l1,l3): since l2 and l3 returns l3 (assuming that l2 and l3 are both non-empty -- Otherwise, it will return the empty one.)

If you just want to print each list consecutively, you can do:

for lst in (l1,l2,l3):  #parenthesis unnecessary, but I like them...
    print lst   #[ 1, 2, 3 ]
                #[ 4, 5, 6 ]
                #[ 7, 8, 9 ]

Looping Through Multiple Lists - Python Cookbook [Book], Looping Through Multiple Lists Credit: Andy McKay Problem You need to loop print "List comprehension:" for x, y in [(x,y) for x in a for y in b]: print x, y list consisting of tuples that contain the corresponding items from all lists (in other words, The list arguments may be any kind of sequence, and the result is always a list. Output: 1 2 3 4 5 Without using loops: * symbol is use to print the list elements in a single line with space. To print all elements in new lines or separated by


No need to use zip, just add them together using the + operator. l1 + l2 + l3 creates a new list that is the combination of l1, l2 and l3 so you can simply loop through that, like so:

for f in l1+l2+l3:
    print(f)

Your use of the and operator is incorrect. The other reason why your code doesn't work is using commas (like l1, l2, l3) creates a tuple, which is a container that now holds your 3 lists. So when you try to loop through l1, l2, l3 it will loop through every element in that tuple (which are the lists) and not through every element in the lists as you intend.

Python, Similar logic is extended in case of multiple lists. adding mutiple list at once print ( "The extended and modified list is : " + str (test_list1))� For better understanding of iteration of multiple lists, we are iterating over 3 lists at a time. We can iterate over lists simultaneously in ways: zip() : In Python 3, zip returns an iterator. zip() function stops when anyone of the list of all the lists gets exhausted.


If you want to print

1 4 7
2 5 8
3 6 9

Do:

for i,j,k in zip(l1,l2,l3):
    print i,j,k

Print lists in Python (4 Different Ways), Python | Iterating two lists at once � Python | Using 2D arrays/lists the right way � Python | Union of Value Lists � Striver. Check out� Code doesn’t have to appear on multiple lines. This example takes two lines of code and places it on just a single line. However, it also demonstrates the use of the rjust() method, which right justifies the string. Numerous methods of this sort are described here. Even though they continue to work, Python may stop using them at any time.


It depends on what you want to achieve,

>>> #Given
>>> l1,l2,l3 = [1,2,3],[4,5,6],[7,8,9]
>>> #To print row wise
>>> import itertools
>>> for f in itertools.chain(l1,l2,l3):
    print(f,end=" ")


1 2 3 4 5 6 7 8 9 
>>> #To print column wise
>>> for f in itertools.izip(l1,l2,l3):
    print(*f,end=" ")


1 4 7 2 5 8 3 6 9 
>>> 

or the following implementation which will work in Python 2.7

>>> for f in itertools.chain(*itertools.izip(l1,l2,l3)):
    print f,


1 4 7 2 5 8 3 6 9 
>>> 

How To Iterate Over Two (or More) Lists at the Same Time, If you have had multiple data sets that needed to be jointly computed or a forms a set) in order for the dictionary to contain and display all items of list b (or c as How To Iterate Over Two (or More) Lists at the Same Time Notice that the function returns a zip object, meaning you cannot print it right away. Python Lists. The list is the most versatile datatype available in Python, which can be written as a list of comma-separated values (items) between square brackets. Important thing about a list is that the items in a list need not be of the same type. Creating a list is as simple as putting different comma-separated values between square brackets.


It you're lists are not all the same length it is often better to use map:

>>> l1 = [1, 2, 3]
>>> l2 = [4, 5, 6]
>>> l3 = [7, 8, 9, 2]
>>> for x, y, z in map( None, l1, l2, l3):
...     print x, y, z
...
1 4 7
2 5 8
3 6 9
None None 2

Lists and Tuples, We use a loop to access all the elements in a list. dogs = ['border collie', ' australian cattle dog', 'labrador retriever'] for dog in dogs: print(dog) These last two lines make up a loop, and the The first time through the loop, the value of " dog" will be 'border collie'. There can be an application requirement to append elements of 2-3 lists to one list. This kind of application has a potential to come into the domain of Machine Learning or sometimes in web development as well.


Printing Lists Using Python, Printing Lists Using Python Python outputs the list one item at a time. This example takes two lines of code and places it on just a single line. The {0} and {1} entries represent placeholders for the values supplied from *Colors . The essential goal is to use a technique that's easy to read, works well with all anticipated� In some of my code I put a series of objects in a list and I build an additional list out of their attributes, which is a string. I need to determine if all the items in this second list have the


Storing Multiple Values in Lists – Programming with Python, print('first element:', odds[0]) print('last element:', odds[3]) print('"-1" element:', If we loop over a list, the loop variable is assigned to its elements one at a time: We can change individual elements, append new elements, or reorder the whole list. If two variables refer to the same list, and you modify the list value, it will� How can I print a character multiple times in a single line? This means I cannot use a loop. I'm trying to print " _" multiple times. I tried this method but it's not working: System.out.println (" _" , s); s is the variable.


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