For loop with list?

Question

I have list = ['black', 'red', 'blue', 'green']. How to do proper loop if I want to create 4 variables with names taken from that list?

Answer 1

You should do a try by yourself first. If you still encounter problems, then put your code in playground and link it here. Thanks!

Answer 2

Why do you need it with for loop?

I'm asking because what you want to do sounds unreasonable to me, and I'm wondering if there's a more natural way.

Can you tell us more about what exactly you're trying to do?

Answer 3

Here's without a for loop.
a, b, c, d = ['black', 'red', 'blue', 'green']
print(a, b, c, d)

Answer 4

Yeah, it can be done with exec, but whenever you want to use exec, it's already an indicator that your idea might be what I called 'unreasonable'.

You can always sort out problems like this without the exec bomb.

Answer 5

I can do it without a for loop it will be easy

Answer 6

You could use a second list (instead of variables) and store the result of each calculation there.

Answer 7

Have a look at some of the reply in here.
https://www.sololearn.com/Discuss/2115531/can-i-affect-all-items-of-a-list-into-multiples-variables

Answer 8

I need a version with for loop.

Answer 9

Buttons add elements to list when are pressed.

Next period of the app is definition which create variable for each element in list and do calculations dependent from each name.

Answer 10

I have seen s similar request on here, it was done with a format string and the eval or exec function. If i track it down, ill post the link.

Answer 11

I think that the best solution for your problem is using a dictionary. From there you might be able to objectify it. Maybe redefining the __dict__ attribute of your custom class.

Answer 12

A bit late, but i want to share it anyway:

lst = ['black', 'red', 'blue', 'green']

for ind, i in enumerate(lst,1):
locals()[i] = ind # i can not remember where i saw this: locals()[...] ???
# print all generated variables:
for j in lst:
print(f'{j:6} - {eval(j)}')

# or with zip and 2 iterables:
for num, i in zip(range(1,),lst):
locals()[i] = num
for j in lst:
print(f'{j:6} - {eval(j)}')

Answer 13

I changed the concept.
https://code.sololearn.com/cnG9cjyCuFM3/?ref=app

Answer 14

list = ['black' , 'red', 'blue', 'green']
for x in list:
print(x)