testapp.py 文件源码

def render_testapp(req):
    try:
        import pkg_resources
    except ImportError:
        eggs = ()
    else:
        eggs = sorted(pkg_resources.working_set,
                      key=lambda x: x.project_name.lower())
    python_eggs = []
    for egg in eggs:
        try:
            version = egg.version
        except (ValueError, AttributeError):
            version = 'unknown'
        python_eggs.append('<li>%s <small>[%s]</small>' % (
            escape(egg.project_name),
            escape(version)
        ))

    wsgi_env = []
    sorted_environ = sorted(req.environ.items(),
                            key=lambda x: repr(x[0]).lower())
    for key, value in sorted_environ:
        wsgi_env.append('<tr><th>%s<td><code>%s</code>' % (
            escape(str(key)),
            ' '.join(wrap(escape(repr(value))))
        ))

    sys_path = []
    for item, virtual, expanded in iter_sys_path():
        class_ = []
        if virtual:
            class_.append('virtual')
        if expanded:
            class_.append('exp')
        sys_path.append('<li%s>%s' % (
            class_ and ' class="%s"' % ' '.join(class_) or '',
            escape(item)
        ))

    return (TEMPLATE % {
        'python_version':   '<br>'.join(escape(sys.version).splitlines()),
        'platform':         escape(sys.platform),
        'os':               escape(os.name),
        'api_version':      sys.api_version,
        'byteorder':        sys.byteorder,
        'werkzeug_version': werkzeug.__version__,
        'python_eggs':      '\n'.join(python_eggs),
        'wsgi_env':         '\n'.join(wsgi_env),
        'sys_path':         '\n'.join(sys_path)
    }).encode('utf-8')