forked from Jack-Cherish/python-spider
-
Notifications
You must be signed in to change notification settings - Fork 0
/
downloader.py
59 lines (53 loc) · 2.24 KB
/
downloader.py
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
#-*- coding: UTF-8 -*-
import requests
from contextlib import closing
class ProgressBar(object):
def __init__(self, title, count=0.0, run_status=None, fin_status=None, total=100.0, unit='', sep='/', chunk_size=1.0):
super(ProgressBar, self).__init__()
self.info = "[%s] %s %.2f %s %s %.2f %s"
self.title = title
self.total = total
self.count = count
self.chunk_size = chunk_size
self.status = run_status or ""
self.fin_status = fin_status or " " * len(self.status)
self.unit = unit
self.seq = sep
def __get_info(self):
#[名称] 状态 进度 单位 分割线 总数 单位
_info = self.info % (self.title, self.status, self.count/self.chunk_size, self.unit, self.seq, self.total/self.chunk_size, self.unit)
return _info
def refresh(self, count = 1, status = None):
self.count += count
self.status = status or self.status
end_str = "\r"
if self.count >= self.total:
end_str = '\n'
self.status = status or self.fin_status
print(self.__get_info(), end=end_str, )
if __name__ == '__main__':
#url = 'http://www.demongan.com/source/game/二十四点.zip'
#filename = '二十四点.zip'
print('*' * 100)
print('\t\t\t\t欢迎使用文件下载小助手')
print('作者:Jack-Cui\n博客:http://blog.csdn.net/c406495762')
print('*' * 100)
url = input('请输入需要下载的文件链接:\n')
filename = url.split('/')[-1]
with closing(requests.get(url, stream=True)) as response:
chunk_size = 1024
content_size = int(response.headers['content-length'])
if response.status_code == 200:
print('文件大小:%0.2f KB' % (content_size / chunk_size))
progress = ProgressBar("%s下载进度" % filename
, total = content_size
, unit = "KB"
, chunk_size = chunk_size
, run_status = "正在下载"
, fin_status = "下载完成")
with open(filename, "wb") as file:
for data in response.iter_content(chunk_size=chunk_size):
file.write(data)
progress.refresh(count=len(data))
else:
print('链接异常')