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ztools_web.py
#coding=utf-8
# -*- coding: utf-8 -*-
'''
Top极宽量化(原zw量化)，Python量化第一品牌
Top极宽·量化开源工具箱 系列软件
by Top极宽·量化开源团队 2016.12.25 首发
文件名:ztools_web.py
默认缩写：import ztools_web as zweb
简介：Top极宽web网络与htm网页常用工具函数集
'''
import os,sys,io,re
import arrow,bs4,random
import pandas as pd
import tushare as ts
#
import requests
import bs4
from bs4 import BeautifulSoup
#from robobrowser import RoboBrowser
from concurrent import futures
#from concurrent.futures import ProcessPoolExecutor, as_completed
from concurrent.futures import ThreadPoolExecutor, as_completed
#
import zsys
import ztools as zt
import ztools_str as zstr
import ztools_data as zdat
#
#-----------------------
'''
xxx.var&const
misc
#
web_get_xxx
web_get_xxx.site...
#
#--web_dz.xxx ,discuz
#----zdz.zwx.xxx zdz.zwx-->zdzx
#---bs4.xxx
'''
#-----------------------
#------------web.var&const
zt_headers = {'User-Agent':"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.1 (KHTML, like Gecko) Chrome/22.0.1207.1 Safari/537.1"}
zt_xagent='Mozilla/5.0 (Windows; U; Windows NT 5.1; it; rv:1.8.1.11) Gecko/20071127 Firefox/2.0.0.11'
#-----------------------
#---web_get_xxx
def web_get001sub(url):
try:
rx= requests.get(url,headers=zt_headers) #获得网页,headers
except:
rx=None
return None
finally:
return rx
#
return rx
def web_get001(url):
rx,xc=None,0
while (rx is None)or(xc<3):
rx=web_get001sub(url)
xc+=1
#
return rx
def web_get001txt(url,ucod='gb18030',ftg='',fcod='gbk'):
htm,rx='',web_get001(url)
if rx!=None:
xcod=rx.apparent_encoding;#print(xcod,uss)
rx.encoding =xcod #gb-18030
#dss=rx.text
htm=rx.text;#print(htm)
if xcod.upper()=='UTF-8':
#print('@@u8a');#print(htm)
htm=htm.replace(' ',' ')
css = htm.encode("UTF-8",'ignore').decode("UTF-8",'ignore')
css=css.replace(u'\xfffd ', u' ')
css=css.replace(u'\xa0 ', u' ')
htm = css.encode("GBK",'ignore').decode("GBK",'ignore')
#
if ftg!='':zt.f_add(ftg,htm,True,cod=fcod)
#
return htm
def web_get001txtFg(uss,fss):
fsiz=zt.f_size(fss)
if zsys.web_get001txtFg or(fsiz<1000):
#print(zsys.sgnSP8,fss,fsiz)
#uss=xtfb.us0_extOuzhi+xtfb.kgid+'.shtml';#print(uss)
htm=web_get001txt(uss,ftg=fss,fcod='GB18030');#print(fss)
else:
htm=zt.f_rd(fss,cod='GB18030')
#
return htm
def web_get001txtXFg(uss,fss,downFg=True):
fsiz=zt.f_size(fss)
if downFg or(fsiz<1000):
#print(zsys.sgnSP8,fss,fsiz)
#uss=xtfb.us0_extOuzhi+xtfb.kgid+'.shtml';#print(uss)
htm=web_get001txt(uss,ftg=fss,fcod='GB18030');#print(fss)
else:
htm=zt.f_rd(fss,cod='GB18030')
#
return htm
def web_getXLnks(url,ckn=10,kget=None,kflt=None,uget=None,uflt=None,ucod='gbk'):
#rx= requests.get(url,headers=zt_headers) #获得网页,headers
#print(url)
df=pd.DataFrame(columns=['hdr','url'])
rx=web_get001(url)
if rx==None:return df
#
#rx.encoding =ucod #gb-18030
bs=BeautifulSoup(rx.text,'html5lib') # 'lxml'
#bs=bs0.prettify('utf-8')
xlnks=bs.find_all('a');#print(xlnks)
ds=pd.Series(['',''],index=['hdr','url'])
#print('\ncss,xss:',klnk,kflt)
for lnk in xlnks:
css,uss=lnk.text,lnk.get('href')
#print('cs0,',css,uss)
#
if uflt!=None and uss!=None and zstr.str_xor(uss,uflt):uss=None
if uget!=None and uss!=None and (not zstr.str_xor(uss,uget)):uss=None
#
if kflt!=None and uss!=None and zstr.str_xor(css,kflt):uss=None
if kget!=None and uss!=None and (not zstr.str_xor(css,kget)):uss=None
#print('cs2,',css,uss)
#
if uss==None:css=''
css=zstr.str_fltHtmHdr(css)
if len(css)>ckn:
css=css.replace(',','，')
#print('css,xss:',css,uss)
ds['hdr'],ds['url']=css,uss
df=df.append(ds.T,ignore_index=True)
#
#print(df)
return df
#--- web_get_xxx.site...
def web_get_bdnews010(kstr,pn=1):
url_bdnews0='http://news.baidu.com/ns?cl=2&ct=0&rn=50&ie=gbk&word={0}&pn={1}' #pn=50x
#
df9=pd.DataFrame(columns=['hdr','url'])
for xc in range(0,pn):
uss=url_bdnews0.format(kstr,xc*50);print(uss)
df=web_getXLnks(uss);
df9=df9.append(df,ignore_index=True)
#
df9=df9.drop_duplicates(['hdr'])
return df9
def web_get_cnblog010(kstr,timSgn='OneWeek',npg=2):
us0='http://zzk.cnblogs.com/s/blogpost?DateTimeRange='+timSgn+'&Keywords={0}&pageindex={1}'
df9=pd.DataFrame(columns=['hdr','url'])
for xc in range(0,npg):
uss=us0.format(kstr,xc);print(uss)
df=web_getXLnks(uss);
df9=df9.append(df,ignore_index=True)
#
df9=df9.drop_duplicates(['hdr'])
return df9
def web_get_zhihu010(kstr):
#1d=day;1w=week
uss='https://www.zhihu.com/search?type=content&range=1w&q={0}'.format(kstr);
#print( uss)
df=web_getXLnks(uss,uget=['/question'],uflt=['/answer']);#print(df)
#https://www.zhihu.com/question/21063634
if len(df['hdr'])>0:
df['url']='https://www.zhihu.com'+df['url']
print(df)
return df
#-----------------------
#---------------------zmul.web.xxx
def zmul_finx2urls(pn9=9,finx='dat/zw_bbs30k.csv',us0='http://ziwang.com/'):
df_inx=pd.read_csv(finx,index_col=False,encoding='gbk') #print(df_inx.tail())
urls=[]
for i, row in df_inx.iterrows():
fid=row['uid']
us2=''.join([us0,'forum.php?mod=forumdisplay&fid=',str(fid)])
for xc in range(0,pn9):
uss=''.join([us2,'&page=',str(xc)]);#print(uss);
urls.append(uss)
#
return urls
def zmul_getHtm(df9,urls,xfun,nwork=10,ftg='tmp/mul100.csv'):
#u100=list(map(lambda x : ''.join([us0,x,'/']),x100))
pool=ThreadPoolExecutor(max_workers = nwork)
#pool=ProcessPoolExecutor(max_workers = nwork)
xsubs = [pool.submit(xfun,uss) for uss in urls]
#
for xsub in as_completed(xsubs):
[df,coinsgn,uss]=xsub.result(timeout=60);
print('@mx.u9:',uss,'@dn',len(df.index))
if len(df.index)>0:
df9=df9.append(df,ignore_index=True)
#
if ftg!='':zdat.fdf_wr(df9,ftg,kn=9,fgFlt=True)
#
return df9
#
#------bs4.xxx
def bs_get_ktag(tag):
#return tag.has_attr('isend')
#print('k',fb_get_ktag_kstr)
return tag.has_attr(zsys.bs_get_ktag_kstr)
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