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Python

Posted by Rodrigo Muñoz
Rodrigo Muñoz
Courses Plus Student 20,171 Points

Should I use Regexp to turn a youtube link into an embed one?

I need to convert this:

https://www.youtube.com/watch?v=X3iFhLdWjqc

into this:

https://www.youtube.com/embed/X3iFhLdWjqc

Should I use Regexp or is there any Flask method to convert the urls?

3 Answers

Chris Freeman
MOD
Chris Freeman
Treehouse Moderator 68,468 Points
Chris Freeman
Chris Freeman
Treehouse Moderator 68,468 Points

Are you looking in use this in the route? There is Philip Southam's StackOverflow answer on using regex in a route. Copied below:

from flask import Flask
from werkzeug.routing import BaseConverter

app = Flask(__name__)

class RegexConverter(BaseConverter):
    def __init__(self, url_map, *items):
        super(RegexConverter, self).__init__(url_map)
        self.regex = items[0]


app.url_map.converters['regex'] = RegexConverter

@app.route('/<regex("[abcABC0-9]{4,6}"):uid>-<slug>/')
def example(uid, slug):
    return "uid: %s, slug: %s" % (uid, slug)


if __name__ == '__main__':
    app.run(debug=True, host='0.0.0.0', port=5000)

Otherwise, for general use, you could do:

string = "https://www.youtube.com/watch?v=X3iFhLdWjqc"

re.sub('/watch\?v=', '/embed/', string)
'https://www.youtube.com/embed/X3iFhLdWjqc'
Rodrigo Muñoz
Rodrigo Muñoz
Courses Plus Student 20,171 Points

Thank to you both!

ellie adam
ellie adam
26,377 Points
ellie adam
ellie adam
26,377 Points

Hi, Are you using iframe? Try this it will help you.

def youtube_embed(youtube_url)
  if youtube_url[/youtu\.be\/([^\?]*)/]
    youtube_id = $1
  else
    # Regex from # http://stackoverflow.com/questions/3452546/javascript-regex-how-to-get-youtube-video-id-from-url/4811367#4811367
    youtube_url[/^.*((v\/)|(embed\/)|(watch\?))\??v?=?([^\&\?]*).*/]
    youtube_id = $1
  end

  %Q{<iframe title="YouTube video player" width="640" height="390" src="http://www.youtube.com/embed/#{ youtube_id }" frameborder="0" allowfullscreen></iframe>}
end

youtube_embed('youtu.be/jJrzIdDUfT4')
# => <iframe title="YouTube video player" width="640" height="390" src="http://www.youtube.com/embed/jJrzIdDUfT4" frameborder="0" allowfullscreen></iframe>
ellie adam
ellie adam
26,377 Points
ellie adam
ellie adam
26,377 Points

you welcome!