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What Python regular expression can be used in place of string.replace?

The following code replaces all the characters from given string with ''

Example

import re
line = 'this is a text with<[2> in between</[3> and then there are instances ... where the<[43> number ranges from 0-99</[76>.\
and there are many other lines in the text files \
with<[7> such tags </[8>'
line = re.sub(r"</?\[\d+>", "", line)
print line

Output

This gives the output

this is a text with in between and then there are instances ... where the number ranges from 0-99.and there are many other lines in the text files with such tags