MemoryError - 如何使用Python通过Google Drive SDK下载大文件 [英] MemoryError - how to download large file via Google Drive SDK using Python

问题描述

从Google云端硬盘下载大文件时，内存不足。
我假设 tmp = content.read（1024）不起作用，但是如何解决它？
谢谢。

I'm running out of memory when downloading big file from my Google Drive. I assume that tmp = content.read(1024) does not work, but how to fix it? Thank you.

def download_file(service, file_id):
  drive_file = service.files().get(fileId=file_id).execute()
  download_url = drive_file.get('downloadUrl')
  title = drive_file.get('title')
  originalFilename = drive_file.get('originalFilename')
  if download_url:
    resp, content = service._http.request(download_url)
    if resp.status == 200:
      file = 'tmp.mp4'
      with open(file, 'wb') as f:
          while True:
              tmp = content.read(1024)
              if not tmp:
                  break
              f.write(tmp)
      return title, file
    else:
      print 'An error occurred: %s' % resp
      return None
  else:
    return None

推荐答案

正确的解决方案是实施部分下载。通过这个过程，您将请求文件长度不同的块，直到完全下载。以下是该流程的参考资料： https://developers.google.com/drive / web / manage-downloads＃partial_download 。

The right solution would be to implement partial download. With this process, you will request chunks of different length of a file until it is completely downloaded. Here is a reference of the process: https://developers.google.com/drive/web/manage-downloads#partial_download.

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