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Naivedya Bansal5,483 Points
Not sure whether this is ignoring any of the characters g,o,v or all the characters . Also why is the \t so important here , if I remove it the output changes radically and it picks up a lot of unuseful data. also how do u ensure that these characers are ignore after the '.' symbol and not before it?
So as it stands this regex [^gov\t] ignores anyone one of those the characters g, o, v, or a tab. Not being able to see all the code it is hard to remeber why \t is important in this case but I'm guessing it is because you are trying to skip along to the next word ignoring the tab in-between.
The \b defines a word boundary as a white space or non-word character (which could be at the beginning of the string or the end).
A great place to test out your regex, and get an explanation of why it works is regex101. I'm pretty enamored with it. You can even have it show you the python specific version of the code which is nice at times.