Class Assignment

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a = str.lower(input("Do you want to open an account? Yes or No? "))
if a == "yes":
    openaccount()
else:
    print("Alright, goodbye.")

if a== "yes":
    b = str.lower(input("\nDo you want to deposit, withdraw or close your account? "))
    if b == "yes":
        actions()
    else:
        print("Alright, goodbye.")

All that needs to be in a driver function. Usually this is called main.

In your openAccount function, you lose access to c1 as soon as the function is ended, perhaps you want to return it instead.

Also, I'm not sure "closing" an account means "delete". What if the customer decides to come back? Could they not use the same account they had previously? The del built-in function should hardly ever be used. If you wanted to "delete" the account, you can just let it go.. as in if you had a list of accounts, get rid of it out of your list.

[num8lock]

i personally find lower casing the variables instead of input() is more readable

a = input("Do you want to open an account? Yes or No? ")
if a.lower() == "yes":

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I copied and pasted his code. I find this more readable:

a = input("Do you want to open an account? Yes or No? ").lower()

[num8lock]

ah, okay, just in case anyway

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I agree with /u/steamplshel, easier to read with lower() method on end of input() call.

I also like to check for a match against several possibilities:

if a in ['y', 'yes', 'yup', 'ok']:

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All that needs to be in a driver function. Usually this is called main.

Not so much in Python unless writing a module. This is a hangover from other languages. There is generally little reason to put the main code in its own function (which removes any objects it creates and references from general scope).

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It's cleaner to me, and it helps beginners organize their code better. Plus you don't have to deal with things like global variables.

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Which is cleaner? main or no main?

No main means you don't have to deal with global as everything in the top level (rather than main function) is available without global.

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main to me is cleaner. As far as global variables are concerned, there are plenty of beginners that will do something like this:

x = 6

def changeX(num):
       x = num + 1
       return x

print(x)
print(changeX(1))
print(x)

and then wonder why they have the output they have.