Python 3.4 crash when retrieving frame data

[PeterN]

I've been trying to follow the instructions to be able to access the leap motion from Python 3.4 and everything seems to work fine until it has started up and then in crashes with no error message. Using the Sample.py (with some small changes to get it to work with 3.4) I've narrowed the crash down to:

print("Frame id: %d, timestamp: %d, hands: %d, fingers: %d, tools: %d, gestures: %d" % (frame.id, frame.timestamp, len(frame.hands), len(frame.fingers), len(frame.tools), len(frame.gestures())))

When I split out the different parts of this line it is able to get frame.id and frame.timestamp but then crashes after getting frame.hands.

I can run the Java sample without any problems so I'm pretty certain it isn't a hardware issue.

To create the library I used the latest version of swig (3.0.5) and Visual Studio Community 2013 (compiled as x64). I would like to be able to integrate this with an existing project which uses Python 3.4 so reverting to 2.7 isn't really ideal.

[upretirementman]

I just typed the following code in Blender.app's text window which uses python 3.4 and got this:
Note this is just dummy Leap data, not real.

frame = {
  'id':2343212,
  'hands':2,
  'fingers':3,
  'tools':0,
  'gestures':0,
  'timestamp':1256934552,
  }

print("frame id: %d" % frame['id'])
print("hands:%d" % frame['hands'])
print("fingers: %d" % frame['fingers'])
print("tools: %d" % frame['tools'])
print("gestures: %d" % frame['gestures'])
print("timestamp: %d" % frame['timestamp'])  
print("Frame id: %d, timestamp: %d, hands: %d, fingers: %d, tools: %d, gestures: %d" % (frame['id'], frame['timestamp'], frame['hands'], frame['fingers'], frame['tools'], frame['gestures']))



# AS RUN: 
frame id: 2343212
hands:2
fingers: 3
tools: 0
gestures: 0
timestamp: 1256934552
Frame id: 2343212, timestamp: 1256934552, hands: 2, fingers: 3, tools: 0, gestures: 0

[upretirementman]

Yes it would!
I had to change mine to:
hands = frame.hands
numHands = len(hands)
print("Frame id: %d, timestamp: %d, hands: %d, fingers: %d, tools: %d" % (
frame.id, frame.timestamp, numHands, len(frame.fingers), len(frame.tools)))

[upretirementman]

I have a problem with the Mac and python 3.4 or greater:
I used the Mac software provided: the _LeapPython.so file and the Sample33 file. There seems to be a result like this:

Sample35.py", line 9, in
import Leap, sys, thread, time
File "/Users/paulcoones/Desktop/Sample_python3_displayer_testing/Leap.py", line 31, in
import _LeapPython
ImportError: dlopen(/Users/paulcoones/Desktop/Sample_python3_displayer_testing/_LeapPython.so, 2): Symbol not found: __ZNK4Leap10FingerList5emptyEv
Referenced from: /Users/paulcoones/Desktop/Sample_python3_displayer_testing/_LeapPython.so
Expected in: /Users/paulcoones/Desktop/Sample_python3_displayer_testing/libLeap.dylib
in /Users/paulcoones/Desktop/Sample_python3_displayer_testing/_LeapPython.so

What is going on and how do I fix it? Thanks for any help.