In Python 3.5 typing module was added and type hinting is now supported. Right now our code still need to support Python 3.4, so this is not a problem in reality yet, but its going to be. When doing some tests, I added this into a file that will be obfuscated: > def greeting(name: str) -> str: > return 'Hello ' + name The build passed without any sign that something went wrong. But the installed file (the one I modified) was empty. I tested to manually run pyobfuscate3-install and I got: > Traceback (most recent call last): > File "/usr/bin/pyobfuscate3", line 1168, in <module> > main() > File "/usr/bin/pyobfuscate3", line 1155, in main > ce = ColumnExtractor(source, cw.names) > File "/usr/bin/pyobfuscate3", line 812, in __init__ > self.parse(f) > File "/usr/bin/pyobfuscate3", line 852, in parse > if occurancelist[seen_times]: > IndexError: list index out of range