r13 Not work with python 3.6.

[changhao fu]

vapoursynth r1935 python 3.6.0 Vsedit r13

vspipe worked fine,example.

vspipe.exe --y4m test.vpy - | x265.exe --y4m --preset slow --crf 19.5 --output "test.hevc" -

but vsedit reports:Failed to initialize VapourSynth environment!

[Aleksey Lyashin]

I'm not touching this ticket until stable VapourSynth version that requires Python 3.6 comes out.

[Aleksey Lyashin]

Works perfectly fine with official Python 3.6 for Windows and VapourSynth r36 test1.