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Minor corrections to docs, and an explanation comentary

This commit is contained in:
Facundo Batista 2007-03-05 16:31:54 +00:00
parent 391e27d146
commit ca90ca81a4
1 changed files with 14 additions and 13 deletions
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27
Lib/urllib2.py
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@ -14,36 +14,36 @@ 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
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
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
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.
install_opener -- Installs a new opener as the default opener.
objects of interest:
OpenerDirector --
OpenerDirector --
Request -- an object that encapsulates the state of a request. the
state can be a simple as the URL. it can also include extra HTTP
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 --
exceptions:
URLError-- a subclass of IOError, individual protocols have their own
specific subclass
URLError -- A subclass of IOError, individual protocols have their own
specific subclass.
HTTPError-- also a valid HTTP response, so you can treat an HTTP error
as an exceptional event or valid response
HTTPError -- Also a valid HTTP response, so you can treat an HTTP error
as an exceptional event or valid response.
internals:
BaseHandler and parent
@ -334,7 +334,8 @@ class OpenerDirector:
added = True
if added:
# XXX why does self.handlers need to be sorted?
# the handlers must work in an specific order, the order
# is specified in a Handler attribute
bisect.insort(self.handlers, handler)
handler.add_parent(self)