[Tutor] help please
__peter__ at web.de
Wed Oct 10 04:44:21 EDT 2018
Michael Schmitt wrote:
> To whom it may concern:
> I am trying to teach myself Python and ran into a problem. This is my code
> I am getting the following error
> for rivers in rivers.values():
> AttributeError: 'str' object has no attribute 'values'
> # prints river name
> for rivers in rivers.keys():
> print (rivers)
Look closely at the loop above. What is the value of the "rivers" variable
after the first iteration?
To resolve the problem simply use a different name as the loop variable.
Pro tip: When you loop over a dict you get the keys by default. So:
for river in rivers:
> # prints statement " The (river) is in the country of (country)
> for rivers in rivers:
> print ("The " + rivers.keys() + "is in the country of " +
Here's a logic (and a spelling) error: rivers.keys() comprises all rivers
and rivers.values() all countries in the dict. You want to loop over
rivers.items() which gives you (river, country) pairs.
Tip: print() automatically inserts spaces between its arguments. So:
for river, country in rivers.items():
print("River", river, "is in", country)
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