Using a for loop to combine lists with similar names

Question

I have some lists with common names and I'd like to use a for loop to concatenate them.

Bitcoin_2014 = [457.00, 639.80, 386.94, 320.19]
Bitcoin_2015 = [244.22, 263.07, 236.06, 430.57]
Bitcoin_2016 = [416.73, 673.34, 609.74, 963.74]

I'd like the for loop to be able to print all lists (since the only thing that changes are the last two digits) with the logic of the following but I know the syntax isn't correct.

for i in range(14, 17):
   print(Bitcoin_20,i)

Are you able to do this in Python?

You really shouldn't do that though. If you have only these three variables, just use their names. If you have lots more variables, use a dictionary. See [How do I create a variable number of variables](//stackoverflow.com/q/1373164/843953) — Pranav Hosangadi, Feb 03 '23 at 21:10

score 1 · Answer 1 · answered Feb 03 '23 at 21:14

You can put all the lists in a tuple and loop over that.

for b in (Bitcoin_2014, Bitcoin_2015, Bitcoin_2016):
    print(b)

Consider using a dict instead if you have many such lists.

bitcoin = {
    2014 : [457.00, 639.80, 386.94, 320.19],
    2015 : [244.22, 263.07, 236.06, 430.57],
    2016 : [416.73, 673.34, 609.74, 963.74]
}
for year, val in bitcoin.items():
    print(year, val)

Using a for loop to combine lists with similar names

1 Answers1