typeError: unsetopt() is not supported for this option

Question

class ContentCallback:
        def __init__(self):
                self.contents = ''

        def content_callback(self, buf):
                self.contents = self.contents + buf

def exploitdb_search(name):
    if len(name) != 0:

        query = str(name) + ' ' + 'site:https://www.exploit-db.com/'
        for data in search(query, num_results=1):
            if "https://www.exploit-db.com/exploits" in data:
                x = ContentCallback()
                c = pycurl.Curl()
                c.setopt(c.URL, '{}'.format(data))
                c.setopt(c.WRITEFUNCTION, x.content_callback(data))
                c.perform()
                c.close()
                print(t.content)

Answer 1

c.WRITEFUNCTION 选项的值应该是一个函数。您正在传递调用函数的结果，即 None 因为 content_callback() 没有 return 任何东西。将选项设置为 None 被解释为试图取消设置该选项，此选项不允许这样做。

您应该去掉函数的参数列表，以便传递对函数的引用。

c.setopt(c.WRITEFUNCTION, x.content_callback)

typeError: unsetopt() is not supported for this option

typeError: unsetopt() is not supported for this option

python

pycurl