Learning Modules, Arguments, Parameters (imma noob)
John Gordon
gordon at panix.com
Thu Sep 24 15:32:14 EDT 2015
In <7ad8941d-04aa-42c5-82e9-10cdf02ab695 at googlegroups.com> codywcox at gmail.com writes:
> I seem to be having a problem understanding how arguments and parameters
> work, Most likely why my code will not run. Can anyone elaborate on what
> I am doing wrong?
> def get_input(kilo):
> kilo = float(input('Enter Kilometers: '))
> return kilo
get_input() gets all its input from the keyboard. It doesn't need any
arguments.
> def convert_kilo(kilo,miles):
> miles = float(kilo * 0.6214)
> print( kilo,' kilometers converts to ',miles,' miles')
convert_kilo() calculates miles on its own, so you don't need to pass it
as an argument.
> def main():
> get_input()
> convert_kilo()
>
> main()
When calling get_input, you need to save the return value in a variable,
and then pass that variable as an argument to convert_kilo.
The updated code would look like this:
def main():
kilo = get_input()
convert_kilo(kilo)
def get_input():
kilo = float(input('Enter Kilometers: '))
return kilo
def convert_kilo(kilo):
miles = float(kilo * 0.6214)
print( kilo,' kilometers converts to ',miles,' miles')
main()
--
John Gordon A is for Amy, who fell down the stairs
gordon at panix.com B is for Basil, assaulted by bears
-- Edward Gorey, "The Gashlycrumb Tinies"
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