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Diffstat (limited to 'Doc/library')
| -rw-r--r-- | Doc/library/urllib.request.rst | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/Doc/library/urllib.request.rst b/Doc/library/urllib.request.rst index 6493a29..f4f8692 100644 --- a/Doc/library/urllib.request.rst +++ b/Doc/library/urllib.request.rst @@ -161,6 +161,14 @@ The :mod:`urllib.request` module defines the following functions: cannot find it, looks for proxy information from Mac OSX System Configuration for Mac OS X and Windows Systems Registry for Windows. + .. note:: + + If the environment variable ``REQUEST_METHOD`` is set, which usually + indicates your script is running in a CGI environment, the environment + variable ``HTTP_PROXY`` (uppercase ``_PROXY``) will be ignored. This is + because that variable can be injected by a client using the "Proxy:" HTTP + header. If you need to use an HTTP proxy in a CGI environment use + ``ProxyHandler`` explicitly. The following classes are provided: @@ -265,6 +273,11 @@ The following classes are provided: To disable autodetected proxy pass an empty dictionary. + .. note:: + + ``HTTP_PROXY`` will be ignored if a variable ``REQUEST_METHOD`` is set; + see the documentation on :func:`~urllib.request.getproxies`. + .. class:: HTTPPasswordMgr() |