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| Name | Type | Size | Last Modified | Actions |
|---|---|---|---|---|
| __init__.cpython-33.pyc | File | 147 bytes | April 17 2024 16:58:26. | |
| __init__.cpython-33.pyo | File | 147 bytes | April 17 2024 16:58:26. | |
| error.cpython-33.pyc | File | 3738 bytes | April 17 2024 16:58:26. | |
| error.cpython-33.pyo | File | 3738 bytes | April 17 2024 16:58:26. | |
| parse.cpython-33.pyc | File | 41220 bytes | April 17 2024 16:58:26. | |
| parse.cpython-33.pyo | File | 41220 bytes | April 17 2024 16:58:26. | |
| request.cpython-33.pyc | File | 107612 bytes | April 17 2024 16:58:26. | |
| request.cpython-33.pyo | File | 107414 bytes | April 17 2024 16:58:22. | |
| response.cpython-33.pyc | File | 5987 bytes | April 17 2024 16:58:26. | |
| response.cpython-33.pyo | File | 5987 bytes | April 17 2024 16:58:26. | |
| robotparser.cpython-33.pyc | File | 9389 bytes | April 17 2024 16:58:26. | |
| robotparser.cpython-33.pyo | File | 9389 bytes | April 17 2024 16:58:26. |
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An extensible library for opening URLs using a variety of protocols
The simplest way to use this module is to call the urlopen function,
which accepts a string containing a URL or a Request object (described
below). It opens the URL and returns the results as file-like
object; the returned object has some extra methods described below.
The OpenerDirector manages a collection of Handler objects that do
all the actual work. Each Handler implements a particular protocol or
option. The OpenerDirector is a composite object that invokes the
Handlers needed to open the requested URL. For example, the
HTTPHandler performs HTTP GET and POST requests and deals with
non-error returns. The HTTPRedirectHandler automatically deals with
HTTP 301, 302, 303 and 307 redirect errors, and the HTTPDigestAuthHandler
deals with digest authentication.
urlopen(url, data=None) -- Basic usage is the same as original
urllib. pass the url and optionally data to post to an HTTP URL, and
get a file-like object back. One difference is that you can also pass
a Request instance instead of URL. Raises a URLError (subclass of
IOError); for HTTP errors, raises an HTTPError, which can also be
treated as a valid response.
build_opener -- Function that creates a new OpenerDirector instance.
Will install the default handlers. Accepts one or more Handlers as
arguments, either instances or Handler classes that it will
instantiate. If one of the argument is a subclass of the default
handler, the argument will be installed instead of the default.
install_opener -- Installs a new opener as the default opener.
objects of interest:
OpenerDirector -- Sets up the User Agent as the Python-urllib client and manages
the Handler classes, while dealing with requests and responses.
Request -- An object that encapsulates the state of a request. The
state can be as simple as the URL. It can also include extra HTTP
headers, e.g. a User-Agent.
BaseHandler --
internals:
BaseHandler and parent
_call_chain conventions
Example usage:
import urllib.request
# set up authentication info
authinfo = urllib.request.HTTPBasicAuthHandler()
authinfo.add_password(realm='PDQ Application',
uri='https://mahler:8092/site-updates.py',
user='klem',
passwd='geheim$parole')
proxy_support = urllib.request.ProxyHandler({"http" : "http://ahad-haam:3128"})
# build a new opener that adds authentication and caching FTP handlers
opener = urllib.request.build_opener(proxy_support, authinfo,
urllib.request.CacheFTPHandler)
# install it
urllib.request.install_opener(opener)
f = urllib.request.urlopen('http://www.python.org/')
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Retrieve a URL into a temporary location on disk.
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the temporary file location. The reporthook argument should be
a callable that accepts a block number, a read size, and the
total file size of the URL target. The data argument should be
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>>> _parse_proxy('proxy.example.com')
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>>> _parse_proxy('joe:password@proxy.example.com')
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(None, 'joe', 'password', 'proxy.example.com:3128')
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>>> _parse_proxy('http://proxy.example.com/')
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>>> _parse_proxy('http://joe:password@proxy.example.com:3128')
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('ftp', 'joe', 'password', 'proxy.example.com')
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