[Tutor] stuck

[Mats Wichmann]

On 4/7/24 19:06, Robert Towne wrote:
> Im unable to figure out what I am doing wrong
> 
> def convert_distance(miles):
> km = miles * 1.6
> result = "{:.1f} miles equals {:.1f} km".format(miles,km)
> return result
> 
> 
> print(convert_distance(12)) # Should be: 12 miles equals 19.2 km
> print(convert_distance(5.5)) # Should be: 5.5 miles equals 8.8 km
> print(convert_distance(11)) # Should be: 11 miles equals 17.6 km

Your code should work - if you indent it properly.  We can't always tell 
here whether this is your mistake or some mail system trying to be 
clever about what it thinks your writing should look like. Indentation 
is part of Python syntax. It's ignored in many other programming 
languages, but used anyway as an aid to readability.  In Python a 
statement ending in a colon is followed by a statement block (one line 
or more) that must be indented to tell the interpreter which lines are 
part of the block. For the block that forms the function definition it's 
the lines up to the ending "return", so your function needs to look like 
this:


def convert_distance(miles):
     km = miles * 1.6
     result = "{:.1f} miles equals {:.1f} km".format(miles,km)
     return result


And yes, as Klaus says, many people prefer the "f-string" syntax - short 
for formatted string literals - largely because it puts the interpolated 
variables right there with their formatting instructions and you don't 
have to keep looking to the right to match up variables with 
placeholders in the string. But the format() method of strings is still 
a valid part of the language.