I'm trying to read a c3d file on Python with the btk library but I didn't succeed. I downloaded the library here https://code.google.com/archive/p/b-tk/download
windows-shell
gtfs
sublimerepl
nodes
non-exhaustive-patterns
long-path
dbgrid
cocoscreator
xerces2-j
member-enumeration
cprofile
eid
viewmodelfactory
malformedurlexception
symfony-sonata
tshark
offsetwidth
dependency-parsing
partial-classes
region-monitoring
service-level-agreement
emftext
gnome-shell-extensions
aio
clplacemark
innerhtml
asyncsequence
swiftui-button
file-import
opendj