>>> from wsgiproxy.exactproxy import proxy_exact_request
    >>> from webtest import TestApp
    >>> app = TestApp(proxy_exact_request)
    >>> resp = app.get('http://python.org')
    >>> resp
    <200 OK text/html body='<!DOCTYPE...\n\n'/15978>
    >>> print resp
    Response: 200 OK
    Date: ...
    Server: Apache/2.2.3 (Debian) DAV/2 SVN/1.4.2 mod_ssl/2.2.3 OpenSSL/0.9.8c
    Last-Modified: ...
    ETag: ...
    Accept-Ranges: bytes
    Content-Type: text/html
    Content-Length: ...
    ...
    >>> from wsgifilter.proxyapp import DebugHeaders
    >>> app = TestApp(DebugHeaders(proxy_exact_request))
    >>> app.get('http://python.org/')
    Incoming headers: (GET http://python.org/ SCRIPT_NAME='')
      Host: python.org:80
    Outgoing headers: (200 OK)
      Date: ...
      Server: Apache/2.2.3 (Debian) DAV/2 SVN/1.4.2 mod_ssl/2.2.3 OpenSSL/0.9.8c
      Last-Modified: ...
      Etag: ...
      Accept-Ranges: bytes
      Content-Length: ...
      Content-Type: text/html
    <200 OK text/html body='<!DOCTYPE...\n\n'/15978>
    >>> app = TestApp(proxy_exact_request)
    >>> resp = app.get('http://python.org')
    >>> resp.lxml
    <Element html at ...>
    >>> for a in resp.lxml.xpath('//a'):
    ...     if a.get('href').startswith('http:'):
    ...         continue
    ...     print a.get('href'), a.text_content()
    / 
    #left-hand-navigation 
    #content-body 
    /search Advanced Search
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    /download/ Download
    /community/ Community
    /psf/ Foundation
    /dev/ Core Development
    /links/ Links
    /download/releases/2.5.1 Quick Links (2.5.1)
    /ftp/python/2.5.1/python-2.5.1.msi Windows Installer
    /ftp/python/2.5.1/Python-2.5.1.tar.bz2 Source Distribution
    /community/jobs Python Jobs
    /psf/donations/ Donate to the PSF
    /about/success/usa 
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    about/success and many others
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    /about/website Website maintained by the Python community
    /psf Python Software Foundation
    /about/legal Legal Statements
    >>> resp = resp.click('Legal Statements')
    >>> resp.request.url
    'http://python.org/about/legal'
    >>> resp.status
    '301 Moved Permanently'
    >>> resp = resp.follow()
    >>> #resp.showbrowser()
    >>> resp.html.html.head.title
    <title>Legal Statements</title>
    >>> import re
    >>> re.search(r'<title>(.*?)</title>', resp.body).group(1)
    'Legal Statements'