def beforeRender (self, sourceImage, tempFilename, outputConfig, pluginConfig, computedFilename):
    print 'beforeRender ', sourceImage
close all open files.
dataset/ETHPy150Open rf/renderizer/example_plugin.py/plugin.beforeRender--crossover with--dataset/ETHPy150Open CGATOxford/cgat/CGAT/IOTools.py/FilePoolMemory.__del__