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Bug #947571: By default, urllib.urlopen() does not raise IOErrors

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on server error codes. Make this clear.
This commit is contained in:
Georg Brandl 2006-02-20 21:26:18 +00:00
parent a223d2cb29
commit 124a4e58c4
1 changed files with 8 additions and 1 deletions
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9
Doc/lib/liburllib.tex
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@ -23,7 +23,7 @@ Open a network object denoted by a URL for reading. If the URL does
not have a scheme identifier, or if it has \file{file:} as its scheme not have a scheme identifier, or if it has \file{file:} as its scheme
identifier, this opens a local file (without universal newlines); identifier, this opens a local file (without universal newlines);
otherwise it opens a socket to a server somewhere on the network. If otherwise it opens a socket to a server somewhere on the network. If
the connection cannot be made, or if the server returns an error code, the connection cannot be made
the \exception{IOError} exception is raised. If all went well, a the \exception{IOError} exception is raised. If all went well, a
file-like object is returned. This supports the following methods: file-like object is returned. This supports the following methods:
\method{read()}, \method{readline()}, \method{readlines()}, \method{fileno()}, \method{read()}, \method{readline()}, \method{readlines()}, \method{fileno()},
@ -274,6 +274,9 @@ Additional keyword parameters, collected in \var{x509}, are used for
authentication with the \file{https:} scheme. The keywords authentication with the \file{https:} scheme. The keywords
\var{key_file} and \var{cert_file} are supported; both are needed to \var{key_file} and \var{cert_file} are supported; both are needed to
actually retrieve a resource at an \file{https:} URL. actually retrieve a resource at an \file{https:} URL.
\class{URLopener} objects will raise an \exception{IOError} exception
if the server returns an error code.
\end{classdesc} \end{classdesc}
\begin{classdesc}{FancyURLopener}{...} \begin{classdesc}{FancyURLopener}{...}
@ -285,6 +288,10 @@ response codes (authentication required), basic HTTP authentication is
performed. For the 30x response codes, recursion is bounded by the performed. For the 30x response codes, recursion is bounded by the
value of the \var{maxtries} attribute, which defaults to 10. value of the \var{maxtries} attribute, which defaults to 10.
For all other response codes, the method \method{http_error_default()}
is called which you can override in subclasses to handle the error
appropriately.
\note{According to the letter of \rfc{2616}, 301 and 302 responses to \note{According to the letter of \rfc{2616}, 301 and 302 responses to
POST requests must not be automatically redirected without POST requests must not be automatically redirected without
confirmation by the user. In reality, browsers do allow automatic confirmation by the user. In reality, browsers do allow automatic