text stringlengths 1 81 | start float64 0 10.1k | duration float64 0 24.9 |
|---|---|---|
like that yourself it's a lot easier to | 158 | 4 |
stand on the shoulders of others who've | 160.4 | 3.52 |
already solved that problem for you so | 162 | 3.84 |
you can focus on the problem that you | 163.92 | 4.399 |
yourself want to solve so for | 165.84 | 5.119 |
documentation on most any python module | 168.319 | 4.56 |
you go to the official python docs and | 170.959 | 3.761 |
you go to a url like this where the | 172.879 | 4 |
documentation for that specific module | 174.72 | 4.159 |
lives and within the documentation | 176.879 | 3.521 |
you'll see a list of the functions or | 178.879 | 3.44 |
other functionality that some module | 180.4 | 4.479 |
provides but how do you go about loading | 182.319 | 4 |
a module | 184.879 | 3.44 |
into your own program so that you can | 186.319 | 4.321 |
use the functions in that module well we | 188.319 | 4.801 |
need a new keyword in python and namely | 190.64 | 5.92 |
its import the import keyword in python | 193.12 | 6.8 |
allows you to import the contents of the | 196.56 | 4.72 |
functions from | 199.92 | 4.319 |
some module in python well how might i | 201.28 | 4.879 |
go about using this in practice well let | 204.239 | 4.161 |
me propose that there exists in that | 206.159 | 4.881 |
random module this function among others | 208.4 | 4.24 |
so i have copied and pasted from the | 211.04 | 3.199 |
documentation | 212.64 | 2.48 |
this | 214.239 | 3.92 |
summary of a function called choice now | 215.12 | 6.56 |
the function exists in the random module | 218.159 | 6.08 |
so to speak not a random module the | 221.68 | 4.639 |
random module and so generally the | 224.239 | 4 |
documentation describes it fully like | 226.319 | 2.601 |
this | 228.239 | 2.64 |
random.choice is how you would | 228.92 | 3.399 |
technically call this function though | 230.879 | 3.28 |
we'll see alternatives to that in | 232.319 | 4.161 |
parentheses there is a parameter called | 234.159 | 5.28 |
seq for sequence and sequence generally | 236.48 | 5.28 |
means a list or something that is list | 239.439 | 4.16 |
like if you have a list of numbers or | 241.76 | 3.44 |
strings or anything else and the | 243.599 | 3.84 |
documentation elaborates well how can i | 245.2 | 4.08 |
go about using this function to solve | 247.439 | 3.761 |
perhaps a familiar problem well let me | 249.28 | 4 |
go ahead and open up vs code here and | 251.2 | 3.759 |
let me propose that we implement a | 253.28 | 4.4 |
program that simulates flipping a coin a | 254.959 | 5.68 |
coin that in the us heads heads or tails | 257.68 | 6.079 |
the idea of which is to pick a decision | 260.639 | 6.081 |
with 50 50 probability 50 probability of | 263.759 | 5.681 |
heads 50 probability of tails or you can | 266.72 | 4.72 |
use some other mechanism like that well | 269.44 | 4 |
let me go ahead and open a program with | 271.44 | 4.479 |
code called generate dot pi because i | 273.44 | 4.08 |
want to start generating a whole bunch | 275.919 | 3.601 |
of random information the first of which | 277.52 | 3.92 |
is just going to be a coin toss now how | 279.52 | 4.399 |
do i go about using that function well i | 281.44 | 5.12 |
first have to import the random library | 283.919 | 4.161 |
so literally the first or among the | 286.56 | 4.16 |
first lines of my file should be import | 288.08 | 4.8 |
random and that just gives me access to | 290.72 | 4.4 |
all of the functions in that specific | 292.88 | 5.84 |
module now suppose i want to flip a coin | 295.12 | 6.32 |
well i can do random dot choice per the | 298.72 | 4.8 |
documentation a moment ago and that | 301.44 | 4.16 |
again takes a sequence what's a sequence | 303.52 | 3.6 |
it's a list or something that's list | 305.6 | 3.68 |
like and we know about lists we've used | 307.12 | 4.079 |
lists to iterate over numbers we've used | 309.28 | 3.28 |
lists to iterate over students at | 311.199 | 3.361 |
hogwarts let's go ahead now and let's | 312.56 | 4.639 |
iterate over just a list of two sides of | 314.56 | 6.079 |
a coin heads quote unquote or tails now | 317.199 | 5.121 |
i could call these anything i want these | 320.639 | 4.081 |
are my strings i just want to simulate a | 322.32 | 3.84 |
tossing a coin so i'm just going to say | 324.72 | 3.919 |
in all lower case heads and tails but | 326.16 | 4.96 |
notice the syntax i have heads and tails | 328.639 | 3.84 |
and double quotes that's because they're | 331.12 | 3.2 |
strings i could also use single quotes | 332.479 | 3.521 |
so long as i'm consistent there's a | 334.32 | 3.2 |
comma between them which means the list | 336 | 4.24 |
has two elements there's square brackets | 337.52 | 4.64 |
to the right and the left which | 340.24 | 3.92 |
indicates that this is indeed a list | 342.16 | 4.08 |
that's the syntax recall for defining a | 344.16 | 4.08 |
list in python and then lastly there's | 346.24 | 3.36 |
something more familiar there's the | 348.24 | 3.36 |
parentheses outside of those square | 349.6 | 3.039 |
brackets but those are just the | 351.6 | 3.12 |
parentheses that belong to the choice | 352.639 | 4.801 |
function and specify where its parameter | 354.72 | 5.28 |
gets passed in but again unlike past | 357.44 | 6 |
functions i have to specify what module | 360 | 5.52 |
this function is in at least for now and | 363.44 | 4.64 |
so i do random dot choice to call this | 365.52 | 4.32 |
specific function all right well it's | 368.08 | 3.92 |
one thing to flip a coin picking between | 369.84 | 3.52 |
those with 50 | 372 | 2.4 |
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