Fix for Python 3
Fix for Python 3

mcpv/PyAV,mcpv/PyAV,pupil-labs/PyAV,xxr3376/PyAV,xxr3376/PyAV,pupil-labs/PyAV,PyAV-Org/PyAV,PyAV-Org/PyAV,pupil-labs/PyAV,xxr3376/PyAV,markreidvfx/PyAV,mikeboers/PyAV,pupil-labs/PyAV,mikeboers/PyAV,mcpv/PyAV,markreidvfx/PyAV,markreidvfx/PyAV