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Library for parsing and writing Breath of the Wild Event Flow files

Project description

Library for parsing and writing Nintendo EventFlow binary files

evfl is able to parse and rewrite every single event flow found in Breath of the Wild, both flowcharts (bfevfl) and timelines (bfevtm).


import evfl

flow = evfl.EventFlow()
with open('Animal_Master.bfevfl', 'rb') as file:

flowchart = flow.flowchart
# Real documentation is nonexistent at the moment. I'm sorry.

with open('Animal_Master_Modified.bfevfl', 'wb') as modified_file:


Unit and integration tests can be executed by running python3 -m unittest discover.


This software is licensed under the terms of the GNU General Public License, version 2 or later.

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Files for evfl, version 1.1.1
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