python教程分享python入门之scrapy框架中Request对象和Response对象的介绍

目录

• 一、request对象
• 二、发送post请求
• 三、response对象

class request(object_ref):        def __init__(self, url, callback=none, method='get', headers=none, body=none,                   COOKIEs=none, meta=none, encoding='utf-8', priority=0,                   dont_filter=false, errback=none, flags=none, cb_kwargs=none):            self._encoding = encoding  # this one has to be set first          self.method = str(method).upper()          self._set_url(url)          self._set_body(body)          if not isinstance(priority, int):              raise typeerror(f"request priority not an integer: {priority!r}")          self.priority = priority            if callback is not none and not callable(callback):              raise typeerror(f'callback must be a callable, got {type(callback).__name__}')          if errback is not none and not callable(errback):              raise typeerror(f'errback must be a callable, got {type(errback).__name__}')          self.callback = callback          self.errback = errback            self.COOKIEs = COOKIEs or {}          self.headers = headers(headers or {}, encoding=encoding)          self.dont_filter = dont_filter            self._meta = dict(meta) if meta else none          self._cb_kwargs = dict(cb_kwargs) if cb_kwargs else none          self.flags = [] if flags is none else list(flags)