text stringlengths 1 81 | start float64 0 10.1k | duration float64 0 24.9 |
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on this use of classes and in it and now | 3,557.799 | 5.32 |
this ability to raise exceptions when | 3,560.96 | 3.96 |
something goes wrong inside of the | 3,563.119 | 5.161 |
initialization so what if user has a | 3,564.92 | 6.04 |
middle name name middle name and last | 3,568.28 | 4.6 |
name how would you fix that a good | 3,570.96 | 4.32 |
question if you wanted the user to if | 3,572.88 | 4.28 |
you wanted the student to have a first | 3,575.28 | 3.799 |
name middle name and last name we could | 3,577.16 | 4.199 |
do this in a bunch of different ways the | 3,579.079 | 4.361 |
simplest though if Let Me Clear My | 3,581.359 | 3.96 |
screen here and let me just temporarily | 3,583.44 | 4.2 |
do this let me propose that the init | 3,585.319 | 5.361 |
method take in a first argument a middle | 3,587.64 | 5.64 |
argument and a last argument and then | 3,590.68 | 4.439 |
what I think I would do down here here | 3,593.28 | 4.64 |
is ultimately have first equals first | 3,595.119 | 4.44 |
and then I would do the same thing for | 3,597.92 | 5.6 |
middle and last so middle and middle and | 3,599.559 | 7.04 |
then last and last and then what I would | 3,603.52 | 6.2 |
have to do here is when I actually ask | 3,606.599 | 5.24 |
the user for their name I might need to | 3,609.72 | 3.76 |
really go all out I might need to ask | 3,611.839 | 3.441 |
them first for their first name and | 3,613.48 | 3.8 |
store that in a variable called First | 3,615.28 | 4.12 |
and therefore pass in first I might | 3,617.28 | 3.72 |
similarly need to ask them for their | 3,619.4 | 4.08 |
middle name and store that in a variable | 3,621 | 4.039 |
and then pass in a second argument | 3,623.48 | 3.96 |
middle and then lastly if you will let | 3,625.039 | 4.08 |
me go ahead and create a third variable | 3,627.44 | 4.08 |
called last get the input for their last | 3,629.119 | 5.44 |
name and pass that in as well I could | 3,631.52 | 5.48 |
instead just use one input and just ask | 3,634.559 | 4.121 |
them for their whole name so type in | 3,637 | 4.88 |
David uh men enter or David J ma all | 3,638.68 | 5.359 |
three of them and maybe I could use | 3,641.88 | 4.56 |
Python split function maybe a regular | 3,644.039 | 4.04 |
expression to tease it apart that's | 3,646.44 | 2.919 |
probably going to be messy because | 3,648.079 | 2.48 |
there's going to be people who don't | 3,649.359 | 2.921 |
have just two or three names they might | 3,650.559 | 3.641 |
have four or five so maybe sometimes | 3,652.28 | 3.88 |
it's better to have multiple prompts but | 3,654.2 | 3.48 |
that's not a problem because with a | 3,656.16 | 4.439 |
class we have the expressiveness to take | 3,657.68 | 4.679 |
in more arguments if we want we could | 3,660.599 | 3.561 |
even take a list if we wanted but I | 3,662.359 | 3 |
think we'd probably want to have even | 3,664.16 | 3 |
more error checking then not just for | 3,665.359 | 5.2 |
name but for first and then maybe for | 3,667.16 | 5.199 |
middle and then maybe for last so it | 3,670.559 | 3.56 |
just is more and more code though there | 3,672.359 | 3.801 |
would be ways to perhaps consolidate | 3,674.119 | 4.44 |
that too let me undo all of that and see | 3,676.16 | 5.159 |
if there are other questions now on | 3,678.559 | 5.201 |
classes I assume this is classes are | 3,681.319 | 4 |
something I might at the beginning of a | 3,683.76 | 3.12 |
project can I just put them in a | 3,685.319 | 4 |
different file and import them into my | 3,686.88 | 5.719 |
project or or or my main code as needed | 3,689.319 | 4.76 |
absolutely a really good question you | 3,692.599 | 2.921 |
could imagine wanting to use this | 3,694.079 | 4.28 |
student class not just in studenty but | 3,695.52 | 4.72 |
in other files or other projects of | 3,698.359 | 4 |
yours and absolutely you can create your | 3,700.24 | 5.16 |
own library of classes by putting the | 3,702.359 | 5.081 |
student class in your own module or | 3,705.4 | 3.8 |
package per our discussion in the past | 3,707.44 | 3.56 |
about libraries more generally and | 3,709.2 | 3.399 |
absolutely you can do that and later | 3,711 | 3.72 |
today will we see that we've actually | 3,712.599 | 4.321 |
been using classes you and I before in | 3,714.72 | 4.119 |
third party librar so you too can | 3,716.92 | 3.879 |
absolutely do the same how about one | 3,718.839 | 5.52 |
more question on classes can you have | 3,720.799 | 6.401 |
optional variables in classes and two | 3,724.359 | 5.2 |
can you have your own error names like | 3,727.2 | 4.96 |
let's be ego and say I want to raise | 3,729.559 | 6.48 |
Eric error short answer yes so you can | 3,732.16 | 6.28 |
uh these init functions are just like | 3,736.039 | 3.841 |
python functions more generally even | 3,738.44 | 2.48 |
though they're special and that they're | 3,739.88 | 2.64 |
going to get called automatically by | 3,740.92 | 3.679 |
python for you but if you want to make | 3,742.52 | 3.519 |
house optional you could do something | 3,744.599 | 3.041 |
like this you could give it a default | 3,746.039 | 5.641 |
value in the init functions uh signature | 3,747.64 | 5.679 |
so to speak in that first line of code | 3,751.68 | 3.76 |
on line two and that would allow me to | 3,753.319 | 4.161 |
not have to pass in house in this case | 3,755.44 | 3.56 |
I'm going to continue to always pass in | 3,757.48 | 3.319 |
name and house but you could make things | 3,759 | 3.96 |
optional and yes to your second question | 3,760.799 | 4.201 |
if you wanted to have your own error | 3,762.96 | 4.359 |
message like an Eric error you could | 3,765 | 5.319 |
actually create your own Eric error | 3,767.319 | 4.921 |
exception and we'll see in a little bit | 3,770.319 | 3.48 |
that there's actually a whole Suite of | 3,772.24 | 3.359 |
exceptions that exist and you too can | 3,773.799 | 5.32 |
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