使用weka来衡量我的分类器的质量

I programmed my own classifier in python, I used a text corpus to test it using F1 measurement, but now I want to test it in other Data Mining tasks, so I have my classifier output file to a given corpus and I want to measure the quality using Weka different measures, how I can past to Weka the output file and get the quality? I programmed my own classifier in python, I use