标签:class ane contex object col lse logs stream self
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__‘: print(‘*‘ * 100) print(‘\t\t\t\t欢迎使用文件下载小助手‘) print(‘作者:muzihuaner https://www.cnblogs.com/HGNET/‘) 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‘)
标签:class ane contex object col lse logs stream self
原文地址:https://www.cnblogs.com/HGNET/p/12002930.html