江jh
2020-02-29 11:27
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python用代码下载文件文件大小为0或只有2KB怎么解决?


#!/usr/bin/env python
# coding=utf-8
#import importlib,sys
#import sys
#sys.setdefaultencoding('gbk')

'''import sys
import imp
import sys
reload(sys)
sys.setdefaultencoding('utf8')
'''
'''
import sys
sys.setdefaultencoding('utf-8')
import jieba
import json'''
from bs4 import BeautifulSoup
import urllib.request

import urllib.parse as parse
import ssl
import re
import os,os.path
import codecs
import requests 

def getHtml(url):
    global html
    page = urllib.request.urlopen(url)
    html = page.read()
    return html

def file(url1,file_name,name):
    print(url1)
    headers = {'Host': 'download.lfd.uci.edu','User-Agent':'Mozilla/5.0 (Windows NT 10.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/57.0.2987.98 Safari/537.36 LBBROWSER','Referer': 'https://www.lfd.uci.edu/~gohlke/pythonlibs/',
    'Connection': 'keep-alive',
    'Upgrade-Insecure-Requests': '1',
    'User-Agent': 'Mozilla/5.0 (Windows NT 10.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/57.0.2987.98 Safari/537.36 LBBROWSER',
    'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8',
    'Accept-Encoding': 'gzip, deflate, sdch, br',
    'Accept-Language': 'zh-CN,zh;q=0.8'} 
    #req = urllib.urlretrieve(download_url,headers=headers)     








    #urllib.request.urlopen('https://www.lfd.uci.edu/~gohlke/pythonlibs/')
    #req = urllib.request.Request(url=url,headers=header)
    request =   requests.get(url=url1,headers=headers)


    #response = urllib.request.urlopen(request)
    global i
    i += 1 
    file = open(name ,'wb+')
    file.write(request.content)


    file.close()
    print(file_name)
    print("Completed : .... %d  ..." % x)

save_path = os.getcwd()
url = 'https://www.lfd.uci.edu/'
html = getHtml(url)
html='''
<li><a href="javascript:;" onclick=" javascript:dl([101,105,52,56,106,100,50,118,54,95,110,53,119,47,116,99,51,104,113,108,45,112,115,97,46,49,109], &quot;E53AD6:=&lt;F4?C5G5GHC&gt;D?2C&gt;D?2C;098FI471G;@B&quot;); &quot;javascript: dl(&quot;" title="[614 KB] [Oct 17, 2019]">ad3‑2.2.1‑cp38‑cp38‑win_amd64.whl</a></li>
<li><a href="javascript:;" onclick=" javascript:dl([101,108,116,49,47,105,53,99,50,104,97,119,46,115,100,113,51,110,112,118,56,106,45], &quot;&lt;7D&gt;AB5139=?E7;7;2E6A?CE6A?CE:4@?7;:80&quot;); &quot;javascript: dl(&quot;" title="[544 KB] [Oct 17, 2019]">ad3‑2.2.1‑cp38‑cp38‑win32.whl</a></li>
<li><a href="javascript:;" onclick=" javascript:dl([101,52,108,119,95,116,104,109,45,100,47,50,55,51,99,105,46,49,53,97,106,115,113,112,110,54,118], &quot;D:CEFIA49B8&lt;7:?:?@7=F&lt;;7=F&lt;;672&gt;G3B68H0?251&quot;); &quot;javascript: dl(&quot;" title="[609 KB] [Oct 02, 2018]">ad3‑2.2.1‑cp37‑cp37m‑win_amd64.whl</a></li>
<li><a href="javascript:;" onclick=" javascript:dl([101,100,50,106,53,51,116,105,115,49,108,46,97,45,104,118,47,119,113,55,112,110,109,99], &quot;712AC&gt;35?;04&lt;1:1:8&lt;FC4B&lt;FC4BE&lt;@6D41:@=9&quot;); &quot;javascript: dl(&quot;" title="[540 KB] [Oct 02, 2018]">ad3‑2.2.1‑cp37‑cp37m‑win32.whl</a></li>
<li><a href="javascript:;" onclick=" javascript:dl([101,119,50,116,49,54,115,112,106,104,99,51,100,46,108,109,95,97,53,110,118,113,105,47,45,52], &quot;517D6CA2F@;:G1&lt;1&lt;3G96:4G96:4&gt;G0EB?@&gt;;4H&lt;08=&quot;); &quot;javascript: dl(&quot;" title="[598 KB] [Oct 02, 2018]">ad3‑2.2.1‑cp36‑cp36m‑win_amd64.whl</a></li>
<li><a href="javascript:;" onclick=" javascript:dl([101,110,54,49,113,104,45,108,99,53,116,46,106,115,51,112,50,109,97,118,119,105,47,100], &quot;&lt;?;3&gt;B89EAF=5?:?:257&gt;=157&gt;=1@5CD0=?:C46&quot;); &quot;javascript: dl(&quot;" title="[534 KB] [Oct 02, 2018]">ad3‑2.2.1‑cp36‑cp36m‑win32.whl</a></li>
<li><a href="javascript:;" onclick=" javascript:dl([101,53,119,105,112,46,51,104,106,108,95,49,97,47,118,54,109,45,52,99,110,116,113,115,100,50], &quot;FH7E3=0D&lt;B350&lt;;G5@H4H4:@B350@B350?@12C9;?G&gt;A4168&quot;); &quot;javascript: dl(&quot;" title="[596 KB] [Oct 02, 2018]">ad3‑2.2.1‑cp35‑cp35m‑win_amd64.whl</a></li>
<li><a href="javascript:;" onclick=" javascript:dl([101,46,104,53,109,47,99,106,115,50,110,119,100,49,113,118,108,51,45,116,112,97,105], &quot;786=C&gt;2B45C@24D;@A8080&lt;A5C@2A5C@23A:E9@80:1?&quot;); &quot;javascript: dl(&quot;" title="[533 KB] [Oct 02, 2018]">ad3‑2.2.1‑cp35‑cp35m‑win32.whl</a></li>
<li><a href="javascript:;" onclick=" javascript:dl([101,106,45,105,47,112,95,115,104,119,49,109,116,52,51,53,108,118,97,99,110,113,50,46,100,54], &quot;6E0D4@&gt;;3B4=&lt;3AG=1EFEF91B4=&lt;1B4=&lt;:182C5A:GH&lt;F87?&quot;); &quot;javascript: dl(&quot;" title="[599 KB] [Oct 02, 2018]">ad3‑2.2.1‑cp34‑cp34m‑win_amd64.whl</a></li>
<li><a href="javascript:;" onclick=" javascript:dl([101,97,119,113,51,109,49,118,47,110,100,104,50,53,106,112,45,99,108,52,115,46,116,105], &quot;C;=2&gt;6&lt;E7@&gt;3B7093?;D;D5?@&gt;3B?@&gt;3B4?1F83;D1:A&quot;); &quot;javascript: dl(&quot;" title="[539 KB] [Oct 02, 2018]">ad3‑2.2.1‑cp34‑cp34m‑win32.whl</a></li>
<li><a href="javascript:;" onclick=" javascript:dl([101,52,49,116,45,53,100,51,97,109,118,54,113,105,46,50,106,95,112,119,47,55,108,115,110,104,99], &quot;F&gt;?;A942CIA&gt;DC7563&gt;=&gt;=13IA&gt;D3IA&gt;D83B&lt;G@785:0=BHE&quot;); &quot;javascript: dl(&quot;" title="[642 KB] [Oct 02, 2018]">ad3‑2.2.1‑cp27‑cp27m‑win_amd64.whl</a></li>
<li><a href="javascript:;" onclick=" javascript:dl([101,46,53,49,106,110,108,47,50,99,118,105,112,109,116,119,51,97,100,113,45,115,104,55], &quot;D73B;91=68;7F6@A?C70702C8;7FC8;7F&lt;C&gt;:4?70&gt;E5&quot;); &quot;javascript: dl(&quot;" title="[556 KB] [Oct 02, 2018]">ad3‑2.2.1‑cp27‑cp27m‑win32.whl</a></li>
</ul>

'''
print('html done')
#html.decode('utf-8')
#print(html)
'''headers = {'User-Agent':'Mozilla/5.0 (Windows NT 6.1)AppleWebKit/537.11 (KHTML, like Gecko) Chrome/23.0.1271.64 Safari/537.11'} 
r = requests.get(url, headers = headers)

r.encoding = "utf-8"

soup = BeautifulSoup(r.text, "html.parser")
#html_mod=re.sub(pattern=".",repl=".",string=html.decode('utf-8'))
for link in soup.find_all('a'): #soup.find_all返回的为列表
    print(link.get('href'))
    #name_list+=link

'''

name_list = html#soup.find_all('a')#re.findall(r']">*-cp38-win_amd64.whl',html.decode('utf-8'))
x=1

files=os.listdir(save_path)
print(files)
print(type(name_list))
name_list=str(name_list)
name_list1=[]
#print(name_list)
#for name in name_list:


k=0
   # name[k]=str(name1[k])
for i in range(len(name_list)):
    j=0
    if name_list[i-2:i+1]==']">':

        name_list1.append(name_list[i+1:i+60])

        global m

        if k<len(name_list1):
            for l in range(len(name_list1[k])):
                if l-9>=0:
                    if name_list1[k][l-4:l]=='.whl' or name_list1[k][l-3:l]=='.gz' or name_list1[k][l-4:l]=='.zip':

                        j=1

                        m=l
        if j==1:
            name_list1[k]=name_list1[k][0:m]
            k+=1



    '''if j==0:
    name_list.remove(name)'''


 #file_name = os.path.join(save_path ,name)

    i=0

#print(name)
print(name_list1)
for name in name_list1:
    j=0
    for l in range(len(name)):
        if l-9>=0:
             if name[l-4:l]=='.whl' or name[l-3:l]=='.gz' or name[l-4:l]=='.zip':

                 j=1

                 m=l
    if j==1:
        name=name[0:m]
        k+=1


    if name in files:
        continue
    '''if name=='Delny‑0.4.1‑cp27‑none‑win_amd64.whl</a></li>\n<li>' or name==Delny‑0.4.1‑cp27‑none‑win32.whl</a></li>
</ul>
</:
        continue

    '''

    print('no:'+str(x))
    print('\ndownload '+name)
   # importlib.reload(sys)
    #imp.reload(sys)
    for l in range(len(name)):
        if l-9>=0:
             if name[l-4:l]=='.whl' or name[l-3:l]=='.gz' or name[l-4:l]=='.zip':

                 j=1

                 m=l
    if j==1:
        name=name[0:m]
        k+=1


    string='https://download.lfd.uci.edu/pythonlibs/s2jqpv5t/' + name#[0:4+name.find('.whl')]#https://download.lfd.uci.edu/pythonlibs/s2jqpv5t/
    print('00'+save_path)
    file(string,save_path,name)

    x=x+1
print('09'+name_list)
print('finished')

#!/usr/bin/env python
# coding=utf-8
#import importlib,sys
#import sys
#sys.setdefaultencoding('gbk')

'''import sys
import imp
import sys
reload(sys)
sys.setdefaultencoding('utf8')
'''
'''

import sys
sys.setdefaultencoding('utf-8')
import jieba
import json'''

#from bs4 import BeautifulSoup
import urllib.request

import urllib.parse as parse
import ssl
import re
import os,os.path
import codecs
import requests 

def getText(html):

    '''headers = {'Host': 'https://pypi.org','User-Agent':'Mozilla/5.0 (Windows NT 10.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/57.0.2987.98 Safari/537.36 LBBROWSER','Referer': 'https://pypi.org/search/?c=Programming+Language+%3A%3A+Python+%3A%3A+3',
    'Connection': 'keep-alive',
    'Upgrade-Insecure-Requests': '1',
    'User-Agent': 'Mozilla/5.0 (Windows NT 10.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/57.0.2987.98 Safari/537.36 LBBROWSER',
    'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8',
    'Accept-Encoding': 'gzip, deflate, sdch, br',
    'Accept-Language': 'zh-CN,zh;q=0.8'} 
    #req = urllib.urlretrieve(download_url,headers=headers)     






    '''

    #urllib.request.urlopen('https://www.lfd.uci.edu/~gohlke/pythonlibs/')
    #req = urllib.request.Request(url=url,headers=header)


    #headers = {'User-Agent':'Mozilla/5.0 (Windows NT 6.1; WOW64; rv:23.0) Gecko/20100101 Firefox/23.0'}  

    #import requests
    res = requests.get(html)
    res.encoding = 'utf-8'
    #print(res.text)
    words=res.text
    '''
    soup = BeautifulSoup(res.text, "html.parser")

    words = ""

    for a1 in soup.find_all("a"):

        words = words + str(a1.string)
    '''
    return words
def file(url1,file_name,name):
    print(url1)
    headers = {'Host': 'https://files.pythonhosted.org/packages/','User-Agent':'Mozilla/5.0 (Windows NT 10.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/57.0.2987.98 Safari/537.36 LBBROWSER','Referer': 'https://pypi.org/',
    'Connection': 'keep-alive',
    'Upgrade-Insecure-Requests': '1',
    'User-Agent': 'Mozilla/5.0 (Windows NT 10.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/57.0.2987.98 Safari/537.36 LBBROWSER',
    'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8',
    'Accept-Encoding': 'gzip, deflate, sdch, br',
    'Accept-Language': 'zh-CN,zh;q=0.8'} 
    #req = urllib.urlretrieve(download_url,headers=headers)
    #urllib.request.urlopen('https://www.lfd.uci.edu/~gohlke/pythonlibs/')
    #req = urllib.request.Request(url=url,headers=header)
    request =   requests.get(url=url1,headers=headers)
    #response = urllib.request.urlopen(request)
    global i
    i += 1 
    file = open(name ,'wb+')
    file.write(request.content) 
    file.close()
    print(file_name)
    print("Completed : .... %d  ..." % x)
    '''for i in range(len(name_list)):

        j=0
        if name_list[i-24:i+1]=='https://pypi.org/project/':

             name_list1.append(name_list[i+1:i+60])'''

def get(url):
    global name_list1

    res=getText(url)
    #print('\n\n\n\n\n\nok\n\n\n\n\n\n\n\n\n\n')
    #name_list = getText(url)
    #print(res)
    print('html done,page:'+str(count)+'\n')

    for i in range(len(res)):
        #j=0

        if (res[i-8:i+1]=='/project/')==True:

            name_list1.append('https://pypi.org'+res[i-8:i+20])
    #print(name_list1)

def trim(list1):
    k=0
    list2=[]
    for i in list1:
        j=25
        while j<len(list1[k]):
            if list1[k][j]=='/':
                list2.append(list1[k][0:j])
                break
            j+=1
        k+=1
    return list2

def get1(url):
    """o=0
    for n in len(url):
        if url[n]=='"':
            url=url[0:n-1]+'#files'
    """
    global namelist

    url=url+'#files'
    #import requests
    res = requests.get(url)
    res.encoding = 'utf-8'
    #print(res.text)

    html=res.text

    for p in range(len(html)):
        stri='https://files'
        if html[p-len(stri):p]==stri:
            namelist.append(html[p-len(stri):p+170])

save_path = os.getcwd()
'''
url = 'https://pypi.org/search/?c=Programming+Language+%3A%3A+Python+%3A%3A+3'

name_list = getText(url)
print(name_list)
print('html done')
#html.decode('utf-8')
print(name_list)'''
x=1
files=os.listdir(save_path)
#print(files)
#print(type(name_list))
name_list1=[]
#print(name_list)
#for name in name_list:
k=0
   # name[k]=str(name1[k])
'''for i in range(len(name_list)):
    j=0
    if name_list[i-25:i+1]=='https://pypi.org/project/':

        name_list1.append(name_list[i-25:i+20])
        for u in range(len(name_list1[len(name_list1)])):
            if name_list1[len(name_list1)][u]==' ':
                name_list1[len(name_list1)]=name_list1[len(name_list1)][0:u-1]
'''
global count
count=2
name_list1=[]
for count in range(1):
    get('https://pypi.org/search/?c=Programming+Language+%3A%3A+Python+%3A%3A+3&page='+str(count))


"""        global m

        if k<len(name_list1):
            for l in range(len(name_list1[k])):
                if l-9>=0:
                    if name_list1[k][l-4:l]=='.whl' or name_list1[k][l-3:l]=='.gz' or name_list1[k][l-4:l]=='.zip':

                        j=1

                        m=l
        if j==1:
            name_list1[k]=name_list1[k][0:m]
            k+=1"""
'''if j==0:
    name_list.remove(name)'''
 #file_name = os.path.join(save_path ,name)

#i=0

#print(name)
#print(name_list1)
namelist=[]
h=0
for y in trim(name_list1):
    get1(y)
    print(namelist)
    if h==3:
        break
    h+=1
i=0
for name in namelist:
    j=0
    for l in range(len(name)):
        if l-9>=0:
            if name[l-4:l]=='.whl' or name[l-3:l]=='.gz' or name[l-4:l]=='.zip':

                j=1

                m=l
                break

    if j==1:
        name=name[0:m]
        k+=1
    while m>0:
        if m<len(name):
            if name[m]=='/':
                filename=name[m+1:len(name)]#p]
                break
        m-=1

    if filename in files:
        continue
    '''if name=='Delny‑0.4.1‑cp27‑none‑win_amd64.whl</a></li>\n<li>' or name==Delny‑0.4.1‑cp27‑none‑win32.whl</a></li>
</ul>
</:
        continue

    '''
    print('no:'+str(x))
    print('\ndownload '+name)
   # importlib.reload(sys)
    #imp.reload(sys)
    for l in range(len(name)):
        if l-9>=0:
            if name[l-4:l]=='.whl' or name[l-3:l]=='.gz' or name[l-4:l]=='.zip':

                j=1

                m=l
                break
    if j==1:
        name=name[0:m]
        k+=1
    p=m

  #string='https://download.lfd.uci.edu/pythonlibs/s2jqpv5t/' + name#[0:4+name.find('.whl')]#https://download.lfd.uci.edu/pythonlibs/s2jqpv5t/
    print('00'+save_path)
    file(name,save_path,filename)
    print('\n........'+filename+'..........complete\n')
    x=x+1
print('09')
print('finished')

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2条回答 默认 最新

  • zqbnqsdsmd 2020-02-29 12:16
    已采纳
    已采纳该答案
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    解决 无用
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  • threenewbee 2020-02-29 12:06

    用记事本之类的工具打开2kb的文件,按照我的推测,应该是一个告诉你错误原因的网页。看看具体什么提示信息。

    可能的原因是,你的参数不正确,请求的地址不对,网页需要登录才允许你下载,或者境外网站被拦截了。

    你可以用浏览器先下载,同时f12抓包看看,对比user-agent cookie referer host postdata url这些部分,特别检查你的程序,尤其是cookie,登录状态是否保持

    评论
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