text stringlengths 1 81 | start float64 0 10.1k | duration float64 0 24.9 |
|---|---|---|
unrelatedly for whatever reason enter | 6,783.8 | 5.52 |
that is not their Twitter username so we | 6,787.28 | 4.359 |
need to have some conditional logic I | 6,789.32 | 4.44 |
would argue so that for this program's | 6,791.639 | 5 |
sake we're only printing out or in a | 6,793.76 | 4.76 |
backend system we're only saving into | 6,796.639 | 4.56 |
our database or a CSV file the username | 6,798.52 | 4.96 |
if we actually match matched the proper | 6,801.199 | 5.681 |
pattern so rather than use re.sub which | 6,803.48 | 6.08 |
is useful for cleaning up data as we've | 6,806.88 | 4.4 |
done here to get rid of something we | 6,809.56 | 4.24 |
don't want there why don't we go back to | 6,811.28 | 6.56 |
re. search where we began today and use | 6,813.8 | 6.12 |
it to solve the same problem but in a | 6,817.84 | 4.04 |
way that's conditional whereby I can | 6,819.92 | 3.84 |
confidently say yes or no at the end of | 6,821.88 | 4.4 |
my program here's the username or here | 6,823.76 | 4.56 |
it is not so let me go ahead now and | 6,826.28 | 4.16 |
I'll clear my terminal window here I'm | 6,828.32 | 4.399 |
going to keep most of uh the I'm going | 6,830.44 | 4.12 |
to keep the first two lines the same | 6,832.719 | 4.081 |
where I import re and I get the URL from | 6,834.56 | 4.519 |
the user but this time let's do this | 6,836.8 | 5.12 |
let's this time search for using re. | 6,839.079 | 5.401 |
search instead of re.sub the following | 6,841.92 | 3.799 |
I'm going to start matching at the | 6,844.48 | 3.88 |
beginning of the UR of the string | 6,845.719 | 5.121 |
https uh question mark to make the S | 6,848.36 | 5.12 |
optional colon SL slash then I'm going | 6,850.84 | 4.96 |
to make my uh | 6,853.48 | 5.08 |
www uh optional by putting that in | 6,855.8 | 5.399 |
question marks there then a twitter.com | 6,858.56 | 4.599 |
with a literal do there so I'll stay | 6,861.199 | 5.4 |
ahead of that issue too then a slash and | 6,863.159 | 5.841 |
then well this is where David J ma is | 6,866.599 | 5.201 |
supposed to go how do I detect this well | 6,869 | 4.36 |
I think I'll just tolerate anything at | 6,871.8 | 4.6 |
the end of the URL here all right dollar | 6,873.36 | 5.68 |
sign at the very end close quote for the | 6,876.4 | 4.08 |
moment I'm going to stipulate that we're | 6,879.04 | 3.159 |
not going to worry about question marks | 6,880.48 | 4 |
at the end or hashes like for fragment | 6,882.199 | 4.241 |
IDs and URLs we're going to assume for | 6,884.48 | 4.4 |
Simplicity now that the URL just ends | 6,886.44 | 5.08 |
with the username alone now what am I | 6,888.88 | 4.319 |
going to do well I want search for this | 6,891.52 | 3.52 |
URL specifically and I'm going to ignore | 6,893.199 | 5.52 |
case so re. ignore case uh applying that | 6,895.04 | 6.52 |
same lesson learned from before re. | 6,898.719 | 5.641 |
search recall will return to you the | 6,901.56 | 4.519 |
matches you've captured well what do I | 6,904.36 | 3.719 |
want to capture well I want to capture | 6,906.079 | 4.481 |
everything to the right of the | 6,908.079 | 5.56 |
twitter.com URL here so let me surround | 6,910.56 | 6.039 |
what should be the user's username with | 6,913.639 | 5.44 |
parentheses not for making them optional | 6,916.599 | 4.201 |
but to say capture this set of | 6,919.079 | 4.801 |
characters now are search recall returns | 6,920.8 | 5.399 |
and answer matches will be my variable | 6,923.88 | 3.799 |
name again but I could call it anything | 6,926.199 | 5.52 |
I want and then I can do this if matches | 6,927.679 | 6.44 |
now I know I can do this let's print out | 6,931.719 | 5.36 |
the format string username colon and | 6,934.119 | 6.241 |
then uh what do I want to print out well | 6,937.079 | 5.361 |
I think I want to print out matches. | 6,940.36 | 5.56 |
group one for my matched username all | 6,942.44 | 5.6 |
right so what am I doing just to recap | 6,945.92 | 4.239 |
line one I'm importing the library line | 6,948.04 | 4.32 |
two I'm getting the URL from the user so | 6,950.159 | 4.881 |
nothing new there line five I'm | 6,952.36 | 5.92 |
searching the user's URL as indicated | 6,955.04 | 5.76 |
here as the second argument for this | 6,958.28 | 5.399 |
regular expression this pattern I have | 6,960.8 | 7.12 |
surrounded the dot plus with parentheses | 6,963.679 | 6.601 |
so that they are captured ultimately so | 6,967.92 | 5.12 |
I can extract in this final scenario the | 6,970.28 | 5.879 |
user's username if I indeed got a match | 6,973.04 | 6.4 |
and matches is non none it is actually | 6,976.159 | 5.801 |
containing some match then and only then | 6,979.44 | 5.159 |
print out username in this way let me | 6,981.96 | 5.279 |
try this now if I run python of twitter. | 6,984.599 | 5.841 |
and type in HTTPS | 6,987.239 | 6.081 |
www.google.com now nothing gets printed | 6,990.44 | 4.84 |
so I've at least solved the mistake we | 6,993.32 | 3.839 |
just saw where I was just assuming that | 6,995.28 | 4.399 |
my code worked now I'm making sure that | 6,997.159 | 4.801 |
I have searched for and found the | 6,999.679 | 5.121 |
Twitter URL prefix all right well let's | 7,001.96 | 6.639 |
run this for real now python of twitter. | 7,004.8 | 7.76 |
https twitter.com davidj maen but note I | 7,008.599 | 7.401 |
could use HTTP I could use www I'm just | 7,012.56 | 5.639 |
going to go ahead here and hit | 7,016 | 4.92 |
enter huh | 7,018.199 | 6.321 |
none what has gone | 7,020.92 | 6.279 |
wrong this one's a bit more | 7,024.52 | 6.92 |
subtle but why does matches. group one | 7,027.199 | 6.761 |
contain nothing wait a minute let me | 7,031.44 | 4.759 |
maybe I maybe I did this wrong maybe | 7,033.96 | 4.239 |
maybe do we need the www let me run it | 7,036.199 | 4.96 |
again so here we go https let's add it | 7,038.199 | 9.361 |
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