python怎么处理html中的图片

def imgFile(environ, start_response):
    ext = environ[‘PATH_INFO‘].split(‘.‘)
    for n in ext:
        mime = n
    m = [(‘content-type‘, ‘image/‘+mime)]  
    start_response(‘200 OK‘, m)  
    
    image = open(os.getcwd()+environ[‘PATH_INFO‘], "rb")
    if ‘wsgi.file_wrapper‘ in environ:
        return environ[‘wsgi.file_wrapper‘](image, 1024)
    else:
        return iter(lambda: image.read(1024), ‘‘)