Vfrdtyky

fruits=["apple","banana","melon"]

for fruit in fruits:

    print fruit #print1

    print len(fruit) #print2

I know output of this script will be like below

apple

5

banana

6

melon

5

but I want to run this script like

#print1 > #print1 > #print1 > #print2 > #print2 > #print2

so the output will be like

apple

banana

melon

5

6

5

Is there any good way for this?
(point is that I want to use for function one time)
(Sorry for bad expanation)

The simplest way to do this is to iterate the loop twice:

fruits = ["apple", "banana", "melon"]



for _ in range(2):

    for fruit in fruits:

        print fruit

which gives:

apple

banana

melon

apple

banana

melon

This avoids duplicating the list object, avoids duplicating code, and scales easily.

Edit: to iterate over two different functions, separately, you can just iterate over the list twice:

fruits = ["apple", "banana", "melon"]



for fruit in fruits:

    print fruit

for fruit in fruits:

    print len(fruit)

For more complex situations you could also make a list of your functions and iterate through those:

def print_name(item):

    print(string)



def print_name_length(item):

    print(len(item))



fruits = ["apple", "banana", "melon"]



for func in (print_name, print_name_length):

    for fruit in fruits: 

        func(fruit)

You can create a list of functions you want to call and loop over them first, and then loop over fruits:

fruits = ["apple", "banana", "melon"]



for func in [lambda x: x, len]:

    for fruit in fruits:

        print(func(fruit))

Output

apple

banana

melon

5

6

5

It looks like you could just loop through the same list twice to achieve the desired logging:

for i in range(2):

    for fruit in fruits:

        print(fruit)

You can use generator expressions:

fruits=["apple","banana","melon"]



def getfruits(fruits):

    for f in fruits:

        print(f)

        yield str(len(f)) + 'n'



print(*list(getfruits(fruits)))

Output:

apple

banana

melon

5

6

5

fruits=["apple","banana","melon"]



for lists in (fruits, (len(fruit) for fruit in fruits)):

    for each_list in lists:

        print(each_list)

I make a loop iterating over two lists; fruits and a list containing the lengths of the fruit in fruits.

Then I print out each list.

This could probably be more memory efficient, but this makes the most sense to me. I was going for readability.

You can just run the same loop twice.

fruits = ["apple","banana","melon"]

for f in fruits:

  print f

for f in fruits:

  print f

Which will get you the result. It may be ugly but it gets the job done.

There is no way to do this in one loop. Is there any reason why this would not work:

for fruit in fruits:

    print fruit #print1

for fruit in fruits:

    print fruit #print2