Requests 源码阅读笔记

models.py

class Request(RequestHooksMixin):
    def __init__(self,
            method=None, url=None, headers=None, files=None, data=None,
            params=None, auth=None, cookies=None, hooks=None, json=None):

        # Default empty dicts for dict params.
        data = [] if data is None else data
        files = [] if files is None else files
        headers = {} if headers is None else headers
        params = {} if params is None else params
        hooks = {} if hooks is None else hooks

class Response(object):
    __attrs__ = [
        '_content', 'status_code', 'headers', 'url', 'history',
        'encoding', 'reason', 'cookies', 'elapsed', 'request'
    ]

    def __init__(self):
        self._content = False
        self._content_consumed = False
        self._next = None

        #: Integer Code of responded HTTP Status, e.g. 404 or 200.
        self.status_code = None

        #: Case-insensitive Dictionary of Response Headers.
        #: For example, ``headers['content-encoding']`` will return the
        #: value of a ``'Content-Encoding'`` response header.
        self.headers = CaseInsensitiveDict()

        #: File-like object representation of response (for advanced usage).
        #: Use of ``raw`` requires that ``stream=True`` be set on the request.
        # This requirement does not apply for use internally to Requests.
        self.raw = None

        #: Final URL location of Response.
        self.url = None

        #: Encoding to decode with when accessing r.text.
        self.encoding = None

        #: A list of :class:`Response <Response>` objects from
        #: the history of the Request. Any redirect responses will end
        #: up here. The list is sorted from the oldest to the most recent request.
        self.history = []

        #: Textual reason of responded HTTP Status, e.g. "Not Found" or "OK".
        self.reason = None

        #: A CookieJar of Cookies the server sent back.
        self.cookies = cookiejar_from_dict({})

        #: The amount of time elapsed between sending the request
        #: and the arrival of the response (as a timedelta).
        #: This property specifically measures the time taken between sending
        #: the first byte of the request and finishing parsing the headers. It
        #: is therefore unaffected by consuming the response content or the
        #: value of the ``stream`` keyword argument.
        self.elapsed = datetime.timedelta(0)

        #: The :class:`PreparedRequest <PreparedRequest>` object to which this
        #: is a response.
        self.request = None

git grep -n requests.get tests/test_requests.py

tests/confest.py

def prepare_url(value):
    # Issue #1483: Make sure the URL always has a trailing slash
    httpbin_url = value.url.rstrip('/') + '/'

place a debugger in adapters.py

py.test test_requsts.py::TestRequests::test_DIGEST_HTTP_200_OK_GET

• lets-read-code-pythonrequests-library