How to use the pyquery.pyquery.PyQuery function in pyquery

def test_rating(self):
        """Submit rating form with and without AJAX."""

        # Empty POST: Count errors
        for ajax in True, False:
            r = self.post_feedback({'type': OPINION_RATING}, ajax=ajax)
            if not ajax:
                doc = pyquery.PyQuery(r.content)
                eq_(doc('article#rate form .errorlist').length, len(RATING_USAGE))
            else:
                eq_(r.status_code, 400)
                errors = json.loads(r.content)
                eq_(len(errors), len(RATING_USAGE))
                for question in RATING_USAGE:
                    assert question.short in errors

        # Submit actual rating
        data = {'type': OPINION_RATING}
        for type in RATING_USAGE:
            data[type.short] = RATING_CHOICES[type.id % len(RATING_CHOICES)][0]

        for ajax in True, False:
            r = self.post_feedback(data, follow=False, ajax=ajax)
            if not ajax:

def test_unicode(self):
        xml = pq(u"<p>é</p>")
        self.assertEqual(type(xml.html()), str)
        self.assertEqual(str(xml), '<p>é</p>')
        self.assertEqual(str(xml('p:contains("é")')), '<p>é</p>')

def test_xhtml_namespace(self):
        expected = 'What'
        d = pq(self.xhtml.encode('utf8'), parser='xml')
        d.xhtml_to_html()
        val = d('div').text()
        self.assertEqual(repr(val), repr(expected))

def extract_upload_errors(html):
    pq = PyQuery(html)
    result = []
    for e in pq.find('.thin > p[style="color: red; text-align: center;"]'):
        result.append(PyQuery(e).text())
    return result

def extract_upload_errors(html):
    pq = PyQuery(html)
    result = []
    for e in pq.find('.thin > p[style="color: red; text-align: center;"]'):
        result.append(PyQuery(e).text())
    return result

def pq(self):
        return PyQuery(self.html)

"data": [],
            "more": False,
            "title": title,
            "total": 0,
            "type": "collection",
            "caption": "优酷视频全集"
        }
        last_num = 1
        while True:
            new_url = ep.format(list_id, last_num)
            json_data = await get_url_service.get_url_async(new_url)[14:-2]
            info = json.loads(json_data)
            if info.get("error", None) == 1 and info.get("message", None) == "success":
                new_html = info.get("html", None)
                if new_html:
                    new_html = PyQuery(new_html)
                    items = new_html("a[target='video'][data-from='2-1']")
                    for item in items:
                        item = PyQuery(item)
                        url = "http:" + item.attr("href")
                        title = item.attr("title")
                        info = {
                            "name": title,
                            "no": title,
                            "subtitle": title,
                            "url": url
                        }
                        data["data"].append(info)
                    last_num += 1
                else:
                    break
            else:

async def Parse_le(self, input_text):
        html = PyQuery(await get_url_service.get_url_async(input_text))
        items = html('dt.d_tit')
        title = "LETV"
        i = 0
        data = {
            "data": [],
            "more": False,
            "title": title,
            "total": i,
            "type": "collection"
        }
        for item in items:
            a = PyQuery(item).children('a')
            name = a.text()
            no = a.text()
            subtitle = a.text()
            url = a.attr('href')
            if url is None:
                continue
            if not re.match('^http://www\.le\.com/.+\.html', url):
                continue
            info = {
                "name": name,
                "no": no,
                "subtitle": subtitle,
                "url": url,
                "caption": "首页地址列表"
            }
            data["data"].append(info)