text stringlengths 1 81 | start float64 0 10.1k | duration float64 0 24.9 |
|---|---|---|
with the library and the last step which | 5,455.56 | 3.9 |
is really just one line of code broken | 5,457.96 | 3.779 |
onto three so that it all fits I'm going | 5,459.46 | 4.62 |
to save the first image but I'm asking | 5,461.739 | 5.281 |
the library to append this other image | 5,464.08 | 4.86 |
to it as well not bracket zero but | 5,467.02 | 3.6 |
bracket one and if I had more I could | 5,468.94 | 4.199 |
express those as well I want to save all | 5,470.62 | 4.44 |
of these files together I want to pause | 5,473.139 | 4.861 |
200 milliseconds a fifth of a second in | 5,475.06 | 5.099 |
between each frame and I want it to Loop | 5,478 | 6.239 |
infinitely many times so now if I cross | 5,480.159 | 7.201 |
my fingers as always hit enter | 5,484.239 | 5.221 |
nothing bad happened and that's almost | 5,487.36 | 5.1 |
always a good thing let me now run code | 5,489.46 | 7.56 |
of costumes dot Jif to open up in vs | 5,492.46 | 7.08 |
code the final image and what I think I | 5,497.02 | 6.119 |
should see is a very happy cat and | 5,499.54 | 5.46 |
indeed so now we've seen not only that | 5,503.139 | 3.661 |
we can read and write files be it | 5,505 | 4.08 |
textually we can read and now write | 5,506.8 | 4.74 |
files that are binary zeros and ones | 5,509.08 | 4.079 |
we've just scratched the surface this is | 5,511.54 | 3.78 |
using the library called pillow But | 5,513.159 | 3.601 |
ultimately this is going to give us the | 5,515.32 | 3.18 |
ability to read and write files however | 5,516.76 | 4.379 |
we want so we've now seen that via file | 5,518.5 | 4.44 |
i o we can manipulate not just textual | 5,521.139 | 4.321 |
files be it txt files or csvs but even | 5,522.94 | 4.739 |
binary files as well in this case they | 5,525.46 | 4.199 |
happen to be images but if we dived in | 5,527.679 | 3.96 |
deeper we could find explore audio and | 5,529.659 | 4.261 |
video and so much more all by way of | 5,531.639 | 3.781 |
these simple Primitives this ability | 5,533.92 | 4.799 |
somehow to read and write files that's | 5,535.42 | 7.16 |
it for now we'll see you next time | 5,538.719 | 3.861 |
so | 5.6 | 7.639 |
[Music] | 7.35 | 5.889 |
[Music] | 15.28 | 6.869 |
all right this is cs50s introduction to | 24.16 | 4.959 |
programming with python my name is david | 27.119 | 4.4 |
maylin and this is our week on libraries | 29.119 | 5.361 |
so libraries are generally files of code | 31.519 | 4.481 |
that other people have written that you | 34.48 | 3.919 |
can use in your own programs or a | 36 | 4.079 |
library's code that you've written that | 38.399 | 3.121 |
you can use in your own program but | 40.079 | 3.281 |
maybe not just this program but another | 41.52 | 4.719 |
and another as well so python supports | 43.36 | 5.12 |
exactly this idea this ability to share | 46.239 | 4.64 |
code with others share code across your | 48.48 | 4.32 |
own projects and it does so by way of | 50.879 | 4.481 |
what it calls module a module in python | 52.8 | 5.12 |
is just a library that typically has one | 55.36 | 4.879 |
or more functions or other features | 57.92 | 4.479 |
built into it generally the purpose of a | 60.239 | 4.481 |
library or a module specifically is to | 62.399 | 4.4 |
encourage reusability of code if you | 64.72 | 4.48 |
find yourself using the same types of | 66.799 | 4 |
functions again and again the same | 69.2 | 3.52 |
functionality if you find yourself | 70.799 | 4.881 |
copying and pasting from an old project | 72.72 | 4.8 |
into your new project odds are there's | 75.68 | 4.4 |
an opportunity there to factor out that | 77.52 | 4.48 |
code that you keep copying and pasting | 80.08 | 4.32 |
that you keep reusing and put it into a | 82 | 4.799 |
library that you can then load into your | 84.4 | 4.48 |
programs moving forward so as to not | 86.799 | 3.601 |
just copy and paste it and have all | 88.88 | 3.36 |
these different copies all over | 90.4 | 3.759 |
so what are some of the modules or | 92.24 | 3.919 |
libraries that python comes with well | 94.159 | 4.241 |
python comes with a random library | 96.159 | 3.92 |
literally which is to say that when you | 98.4 | 3.84 |
install the python interpreter on your | 100.079 | 4.641 |
mac or pc or somewhere in the cloud not | 102.24 | 4.08 |
only do you get python you get a whole | 104.72 | 3.84 |
bunch of modules as well now these | 106.32 | 4.079 |
modules provide you with functions that | 108.56 | 4 |
you don't have access to just by default | 110.399 | 4.881 |
like you do print and input print and | 112.56 | 4.72 |
input and other such functions just work | 115.28 | 4.56 |
in python but sometimes functions are | 117.28 | 4.879 |
tucked away in these modules so you have | 119.84 | 4.4 |
to be more deliberate about loading them | 122.159 | 4.481 |
into the computer's memory so somewhere | 124.24 | 3.92 |
on the computer's hard drive once you've | 126.64 | 3.679 |
installed python there is also it turns | 128.16 | 5.439 |
out a file probably called random.pi | 130.319 | 5.121 |
that someone else wrote probably long | 133.599 | 4.081 |
ago but that you have access to and in | 135.44 | 4.48 |
that random.pi file there's probably one | 137.68 | 4.16 |
or more functions that you yourself can | 139.92 | 5.2 |
use in order to do things randomly that | 141.84 | 5.759 |
is to say how could you flip a coin in a | 145.12 | 4.8 |
program in python how could you pick a a | 147.599 | 5.28 |
random number between 1 and 10 in python | 149.92 | 4.48 |
well you need a bit of randomness and | 152.879 | 3.121 |
while you could figure out | 154.4 | 3.6 |
mathematically how to write functions | 156 | 4.4 |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.