How to decode string with unicode in python?

Question

I have the following line:

%7B%22appVersion%22%3A1%2C%22modulePrefix%22%3A%22web-experience-app%22%2C%22environment%22%3A%22production%22%2C%22rootURL%22%3A%22/%22%2C%22

Expected Result:

{"appVersion":1,"modulePrefix":"web-experience-app","environment":"production","rootURL":"/","

You can check it out here. What I tried:

foo = '%7B%22appVersion%22%3A1%2C%22modulePrefix%22%3A%22web-experience-app%22%2C%22environment%22%3A%22production%22%2C%22rootURL%22%3A%22/%22%2C%22'

codecs.decode(foo, 'unicode-escape')

foo.encode('utf-8').decode('utf-8')

This does not work. What other options are there?

snakecharmerb · Accepted Answer · 2019-12-05 19:05:27Z

2

The string is urlencoded. You can convert it by reversing the urlencoding.

from urllib import parse

s = '%7B%22appVersion%22%3A1%2C%22modulePrefix%22%3A%22web-experience-app%22%2C%22environment%22%3A%22production%22%2C%22rootURL%22%3A%22/%22%2C%22'

unquoted = parse.unquote(s)
unquoted
'{"appVersion":1,"modulePrefix":"web-experience-app","environment":"production","rootURL":"/","'

This looks like part of a larger JSON string. The complete object can be de-serialised with json.loads.

answered Dec 5, 2019 at 19:05

snakecharmerb

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2 Comments

kshnkvn Over a year ago

Thanks. Is there another way, without using a urllib?

snakecharmerb Over a year ago

Not that I know of. I wouldn't be too difficult to write your own decoder, using the information here, but given that urllib is in the standard library it seems rather pointless.

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