Regex - regular expressions in Python | real world examples for Web Scraping and extracting PDF text

regex examples - Sooner or later you will need to resort to using regular expressions if you are scraping text. This video will show you some useful Python (version 3) examples which you can use over and over again.

The first 2 regex examples, "look behind" and "look ahead" and this makes them very useful, and worth learning, even if you don't want to learn the nitty gritty of regular expressions.


Also, the code below is shown working at 23:46

Note 'd' means 'digit' and not 'decimal' in regex (my bad!)

Example regex made in the video, to get just the 'digits' of the 'height' (and not the 'm') :
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import re

tx = "The apple tree is small to medium in size, measuring up to 10m high. \
Look out for: its leaves, which are slightly woolly above and densely \
woolly below; and its large green to 5 cm high red fruits."

print(treeheight)

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#python #regex #lookbehind #lookahead

[samiullah]

Hello Dr pi, i have a list whose all values are strings. L = [ 'file2', 'file3', 'file1' 'file_witout_number']

I want to sort them like L = [ 'file1', 'file2', 'file3' 'file_witout_number']