Changing languages on the fly

If your program needs to support many languages at the same time, you may want to create multiple translation instances and then switch between them explicitly, like so:

import gettext

lang1 = gettext.translation(languages=['en'])
lang2 = gettext.translation(languages=['fr'])
lang3 = gettext.translation(languages=['de'])

# start by using language1

# ... time goes by, user selects language 2

# ... more time goes by, user selects language 3

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