[Tutor] I don't know why this program doesn't run

[Gina]

Thank you so much! That worked!

On 9/21/2012 7:17 PM, Dave Angel wrote:
> Hi, you forgot to do a reply-all, so it didn't go to the list.  I'm
> correcting that now, so don't worry about it.   if your email doesn't
> support reply-all, then just add a cc of tutor at python.org
>
>
> On 09/21/2012 08:09 PM, Gina wrote:
>> On 9/21/2012 6:47 PM, Dave Angel wrote:
>>> On 09/21/2012 07:34 PM, Gina wrote:
>>>> I don't know why this program doesn't run, but if you know, please
>>>> tell me.
>>>> -thanks
>>>>
>>> So what happens when you try?  "Doesn't run" covers a multitude of
>>> possibilities.
>>>
>>> First one:
>>>
>>> python Car Salesperson.py
>>> python: can't open file 'Car': [Errno 2] No such file or directory
>>> davea at think:~/temppython$
>>>
>>> The fix for this one is to put quotes around the script name.  Or to
>>> escape the blanks.  Or even better to rename the file so it doesn't have
>>> spaces in it.
>>>
>>>
>>> Please be specific.  You're running some OS, you launch some particular
>>> version of Python, you give it some commandline, and you get some
>>> unexpected result.  Use a lot of copy/paste and it's not too painful.
>>>
>> I have version 3 of python.
>>
>> it will let me type in the type of car and then enter
>> then i type in the base price and when i hit enter, it says error
>>
> The problem is in your input statement:  base_price = input("What is the
> base price?")
>
> input (on Python version 3.x) always returns a string.  Sometimes that's
> what you want, sometimes it's not.  In this case, just change to:
>
> base_price = int(input("What is the base price?"))
>
>
>> This is the error message:
>> tax = base_price / 25
>> TypeError: unsupported operand type(s) for /: 'str' and 'int'
>>
>> I tried adding int() in front of base_price but it still didn't work
> Again, please be specific.  If you really tried this:
>
>     tax = int() base_price /25
>
> then it naturally won't work.  But if you tried
>      tax = int(base_price) / 25
>
> it should have worked.  What error did you get?  Did it give the wrong
> answer, or another exception traceback?
>
> Anyway, I showed you my preference.  Convert data to their final type as
> soon as possible after getting it from the user.  Not later when you're
> trying to use it.
>
>
>