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  • leaving sockets open which can trigger a ResourceWarning in some # cases, and look like a memory leak in others

    # -*- coding: utf-8 -*-
    
    """
    requests.api
    ~~~~~~~~~~~~
    
    This module implements the Requests API.
    
    :copyright: (c) 2012 by Kenneth Reitz.
    :license: Apache2, see LICENSE for more details.
    """
    
    from . import sessions
    
    
    def request(method, url, **kwargs):
        """Constructs and sends a :class:`Request <Request>`.
    
        :param method: method for the new :class:`Request` object: ``GET``, ``OPTIONS``, ``HEAD``, ``POST``, ``PUT``, ``PATCH``, or ``DELETE``.
        :param url: URL for the new :class:`Request` object.
        :param params: (optional) Dictionary, list of tuples or bytes to send
            in the query string for the :class:`Request`.
        :param data: (optional) Dictionary, list of tuples, bytes, or file-like
            object to send in the body of the :class:`Request`.
        :param json: (optional) A JSON serializable Python object to send in the body of the :class:`Request`.
        :param headers: (optional) Dictionary of HTTP Headers to send with the :class:`Request`.
        :param cookies: (optional) Dict or CookieJar object to send with the :class:`Request`.
        :param files: (optional) Dictionary of ``'name': file-like-objects`` (or ``{'name': file-tuple}``) for multipart encoding upload.
            ``file-tuple`` can be a 2-tuple ``('filename', fileobj)``, 3-tuple ``('filename', fileobj, 'content_type')``
            or a 4-tuple ``('filename', fileobj, 'content_type', custom_headers)``, where ``'content-type'`` is a string
            defining the content type of the given file and ``custom_headers`` a dict-like object containing additional headers
            to add for the file.
        :param auth: (optional) Auth tuple to enable Basic/Digest/Custom HTTP Auth.
        :param timeout: (optional) How many seconds to wait for the server to send data
            before giving up, as a float, or a :ref:`(connect timeout, read
            timeout) <timeouts>` tuple.
        :type timeout: float or tuple
        :param allow_redirects: (optional) Boolean. Enable/disable GET/OPTIONS/POST/PUT/PATCH/DELETE/HEAD redirection. Defaults to ``True``.
        :type allow_redirects: bool
        :param proxies: (optional) Dictionary mapping protocol to the URL of the proxy.
        :param verify: (optional) Either a boolean, in which case it controls whether we verify
                the server's TLS certificate, or a string, in which case it must be a path
                to a CA bundle to use. Defaults to ``True``.
        :param stream: (optional) if ``False``, the response content will be immediately downloaded.
        :param cert: (optional) if String, path to ssl client cert file (.pem). If Tuple, ('cert', 'key') pair.
        :return: :class:`Response <Response>` object
        :rtype: requests.Response
    
        Usage::
    
          >>> import requests
          >>> req = requests.request('GET', 'https://httpbin.org/get')
          >>> req
          <Response [200]>
        """
    
        # By using the 'with' statement we are sure the session is closed, thus we
        # avoid leaving sockets open which can trigger a ResourceWarning in some
        # cases, and look like a memory leak in others.
        with sessions.Session() as session:
            return session.request(method=method, url=url, **kwargs)
    
    
    def get(url, params=None, **kwargs):
        r"""Sends a GET request.
    
        :param url: URL for the new :class:`Request` object.
        :param params: (optional) Dictionary, list of tuples or bytes to send
            in the query string for the :class:`Request`.
        :param **kwargs: Optional arguments that ``request`` takes.
        :return: :class:`Response <Response>` object
        :rtype: requests.Response
        """
    
        kwargs.setdefault('allow_redirects', True)
        return request('get', url, params=params, **kwargs)
    
    
    def options(url, **kwargs):
        r"""Sends an OPTIONS request.
    
        :param url: URL for the new :class:`Request` object.
        :param **kwargs: Optional arguments that ``request`` takes.
        :return: :class:`Response <Response>` object
        :rtype: requests.Response
        """
    
        kwargs.setdefault('allow_redirects', True)
        return request('options', url, **kwargs)
    
    
    def head(url, **kwargs):
        r"""Sends a HEAD request.
    
        :param url: URL for the new :class:`Request` object.
        :param **kwargs: Optional arguments that ``request`` takes. If
            `allow_redirects` is not provided, it will be set to `False` (as
            opposed to the default :meth:`request` behavior).
        :return: :class:`Response <Response>` object
        :rtype: requests.Response
        """
    
        kwargs.setdefault('allow_redirects', False)
        return request('head', url, **kwargs)
    
    
    def post(url, data=None, json=None, **kwargs):
        r"""Sends a POST request.
    
        :param url: URL for the new :class:`Request` object.
        :param data: (optional) Dictionary, list of tuples, bytes, or file-like
            object to send in the body of the :class:`Request`.
        :param json: (optional) json data to send in the body of the :class:`Request`.
        :param **kwargs: Optional arguments that ``request`` takes.
        :return: :class:`Response <Response>` object
        :rtype: requests.Response
        """
    
        return request('post', url, data=data, json=json, **kwargs)
    
    
    def put(url, data=None, **kwargs):
        r"""Sends a PUT request.
    
        :param url: URL for the new :class:`Request` object.
        :param data: (optional) Dictionary, list of tuples, bytes, or file-like
            object to send in the body of the :class:`Request`.
        :param json: (optional) json data to send in the body of the :class:`Request`.
        :param **kwargs: Optional arguments that ``request`` takes.
        :return: :class:`Response <Response>` object
        :rtype: requests.Response
        """
    
        return request('put', url, data=data, **kwargs)
    
    
    def patch(url, data=None, **kwargs):
        r"""Sends a PATCH request.
    
        :param url: URL for the new :class:`Request` object.
        :param data: (optional) Dictionary, list of tuples, bytes, or file-like
            object to send in the body of the :class:`Request`.
        :param json: (optional) json data to send in the body of the :class:`Request`.
        :param **kwargs: Optional arguments that ``request`` takes.
        :return: :class:`Response <Response>` object
        :rtype: requests.Response
        """
    
        return request('patch', url, data=data, **kwargs)
    
    
    def delete(url, **kwargs):
        r"""Sends a DELETE request.
    
        :param url: URL for the new :class:`Request` object.
        :param **kwargs: Optional arguments that ``request`` takes.
        :return: :class:`Response <Response>` object
        :rtype: requests.Response
        """
    
        return request('delete', url, **kwargs)
    

      

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  • 原文地址:https://www.cnblogs.com/rsapaper/p/12819214.html
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