Python: невозможно развернуть список - PullRequest
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Python: невозможно развернуть список

0 голосов
/ 13 февраля 2020

Я извлекаю информацию с веб-сайта и могу получить данные. однако я не могу использовать данные для «K», но успешно для «J» и «L». 

print "hello from python 2"
from lxml import html
import requests
import csv
import pandas as pd
import MySQLdb as mdb
import sys
reload(sys)
sys.setdefaultencoding('utf-8')

bursa = ['J','K','L']
bursalist = []
print bursalist
for x in range (len(bursa)):
    try:
        page = requests.get('https://www.malaysiastock.biz/Listed-Companies.aspx?type=A&value='+bursa[x])

        tree = html.fromstring(page.content)
        tree1 = tree.xpath('//td/h3/a[contains(text(),"(")][not(contains(text(),"(F"))]/text()')
        tree2 = tree.xpath('.//td/h3/text()')
        len(tree1)
        alist = []
        for y in range (len(tree1)):
            a = tree1[y].split('(')
            b = a[1].split(')')
            alist.append(a[0])
            alist.append(b[0])
            alist.append(tree2[2*y])
            alist.append(tree2[2*y+1])

            a = alist

        bursalist.extend(alist)

        print bursalist
    except Exception:
        print "no data"

Обратите внимание, что при печати бурсалиста показываются только данные из «J» и «L», в то время как « K 'отсутствует. Но если я получаю данные из alist, данные' K 'отображаются, но не могут быть расширены. Пожалуйста, сообщите, если есть надежный способ сделать это

print alist покажет 

['K1 ', '0111', 'K-ONE TECHNOLOGY BERHAD', 'Technology Equipment ', 'KAB ', '0193', 'KEJURUTERAAN ASASTERA BERHAD', 'Industrial Engineering ', 'KAMDAR ', '8672', 'KA
MDAR GROUP (M) BERHAD', 'Retailers ', 'KANGER ', '0170', 'KANGER INTERNATIONAL BERHAD', 'Household Goods ', 'KAREX ', '5247', 'KAREX BERHAD', 'Personal Goods ', 'KAR
YON ', '0054', 'KARYON INDUSTRIES BERHAD', 'Chemicals ', 'KAWAN ', '7216', 'KAWAN FOOD BERHAD', 'Food & Beverages ', 'KEINHIN ', '7199', 'KEIN HING INTERNATIONAL BER
HAD', 'Metals ', 'KEN ', '7323', 'KEN HOLDINGS BERHAD', 'Property ', 'KENANGA ', '6483', 'KENANGA INVESTMENT BANK BERHAD', 'Other Financials ', 'KERJAYA ', '7161', '
KERJAYA PROSPEK GROUP BERHAD', 'Construction ', 'KESM ', '9334', 'KESM INDUSTRIES BERHAD', 'Semiconductors ', 'KEYASIC ', '0143', 'KEY ASIC BERHAD', 'Semiconductors 
', 'KFIMA ', '6491', 'KUMPULAN FIMA BERHAD', 'Diversified Industrials ', 'KGB ', '0151', 'KELINGTON GROUP BERHAD', 'Industrial Engineering ', 'KGROUP ', '0036', 'KEY
 ALLIANCE GROUP BERHAD', 'Technology Equipment ', 'KHEESAN ', '6203', 'KHEE SAN BERHAD', 'Food & Beverages ', 'KHIND ', '7062', 'KHIND HOLDINGS BERHAD', 'Household G
oods ', 'KHJB ', '0210', 'KIM HIN JOO (MALAYSIA) BERHAD', 'Retailers ', 'KIALIM ', '6211', 'KIA LIM BERHAD', 'Building Materials ', 'KIMHIN ', '5371', 'KIM HIN INDUS
TRY BERHAD', 'Building Materials ', 'KIMLUN ', '5171', 'KIMLUN CORPORATION BERHAD', 'Construction ', 'KINSTEL ', '5060', 'KINSTEEL BHD', 'Metals ', 'KIPREIT ', '5280
', 'KIP REAL ESTATE INVESTMENT TRUST', 'Real Estate Investment Trusts ', 'KKB ', '9466', 'KKB ENGINEERING BERHAD', 'Industrial Engineering ', 'KLCC ', '5235SS', 'KLC
C PROPERTY HOLDINGS BERHAD', 'Real Estate Investment Trusts ', 'KLCI1XI ', '0835EA', 'KENANGA KLCI DAILY (-1X) INVERSE ETF', 'KENANGA KLCI DAILY 2X LEVERAGED ETF', '
NUSFOR ', '5035', 'KOBAY TECHNOLOGY BERHAD', 'Industrial Materials, Components & Equipment ', 'KOBAY ', '6971', 'KOMARKCORP BERHAD', 'Packaging Materials ', 'KOMARK 
KLCI2XL ', '0834EA', 'KUALA LUMPUR KEPONG BERHAD', 'Plantation ', 'KLK ', '2445', 'KLUANG RUBBER COMPANY (MALAYA) BERHAD', 'Plantation ', 'KLUANG ', '2453', 'KIM LOONG RESOURCES BERHAD', 'Plantation ', 'KMLOONG ', '5027', 'KNM GROUP BERHAD', 'Other Energy Resources ', 'KNM ', '7164', 'KNUSFORD BERHAD', 'Industrial Services ', 'KNUSFOR ', '5035', 'KOBAY TECHNOLOGY BERHAD', 'Industrial Materials, Components & Equipment ', 'KOBAY ', '6971', 'KOMARKCORP BERHAD', 'Packaging Materials ', 'KOMARK ', '7017', 'KOSSAN RUBBER INDUSTRIES BERHAD', 'Health Care Equipment & Services ', 'KOSSAN ', '7153', 'KOTRA INDUSTRIES BERHAD', 'Pharmaceuticals ', 'KOTRA ', '0002', 'KPJ HEALTHCARE BERHAD', 'Health Care Providers ', 'KPJ ', '5878', 'KUMPULAN POWERNET BERHAD', 'Personal Goods ', 'KPOWER ', '7130', 'KERJAYA PROSPEK PROPERTY BERHAD', 'Property ', 'KPPROP ', '7077', 'KUMPULAN PERANGSANG SELANGOR BERHAD', 'Diversified Industrials ', 'KPS ', '5843', 'KPS CONSORTIUM BERHAD', 'Wood & Wood Products ', 'KPSCB ', '9121', 'KRETAM HOLDINGS BERHAD', 'Plantation ', 'KRETAM ', '1996', 'KRONOLOGI ASIA BERHAD', 'Digital Services ', 'KRONO ', '0176', 'KECK SENG (MALAYSIA) BERHAD', 'Diversified Industrials ', 'KSENG ', '3476', 'KSL HOLDINGS BERHAD', 'Property ', 'KSL ', '5038', 'K.SENG SENG CORPORATION BERHAD', 'Industrial Materials, Components & Equipment ', 'KSSC ', '5192', 'K-STAR SPORTS LIMITED', 'Personal Goods ', 'KSTAR ', '5172', 'KONSORTIUM TRANSNASIONAL BERHAD', 'Travel, Leisure & Hospitality ', 'KTB ', '4847', 'KIM TECK CHEONG CONSOLIDATED BERHAD', 'Consumer Services ', 'KTC ', '0180', 'KUB MALAYSIA BERHAD', 'Industrial Services ', 'KUB ', '6874', 'KUCHAI DEVELOPMENT BERHAD', 'Other Financials ', 'KUCHAI ', '2186', 'KWANTAS CORPORATION BERHAD', 'Plantation ', 'KWANTAS ', '6572', 'KYM HOLDINGS BERHAD', 'Pack
aging Materials ', 'KYM ', '8362']
...