python打开文件太多

Question

I'm trying to resize images. It works fine, but my ImageField , which is to_field , is opening but not closing. So I have an error too many open files . I tried some work-around solutions but I wasn't able to fix the problem. Here is the code:

if( to_field.width != size[0] and to_field.height != size[1] ):
   to_field.open()
   image = Image.open(StringIO(to_field.read()))
   old_file_path = to_field.path
   image.resize(size).save(to_field.path)

Any advice??

Answer 1

老问题，但我认为是django字段to_field需要关闭：

to_field.close()