试图用pythonsdk导出文件时出现令人费解的404错误

Question

我正在尝试使用Google的pythonapi客户端库将a public file from Google Drive导出到本地驱动器。你知道吗

我使用的是this script，这是this tutorial的一个改编示例。我已经验证了我的凭据是否正常工作，并且整天都在使用create和update方法，没有任何问题。你知道吗

当我从命令行运行python api_demo.py时，我得到了预期的结果，并将PDF存储到本地驱动器：

aaronpolhamus$ python api_demo.py
  Uploaded "hello.txt" (text/plain)
  Uploaded "hello.txt" (application/vnd.google-apps.document)
  fileId: P110vUov9J9rg2b1XoHMZ3Ssb4Z-FUUPKNQckuyxn_gmo
  mimeType: application/pdf
  Downloaded "hello.pdf" (application/pdf)

然而，当我进入pythonshell以交互方式工作时，我只是无法运行它。下面是它的样子：

In [1]: DRIVE.files().export(fileId='P110vUov9J9rg2b1XoHMZ3Ssb4Z-FUUPKNQckuyxn_gmo', mimeType='application/pdf').execute()

/Users/aaronpolhamus/anaconda/envs/credijusto/lib/python3.6/site-packages/oauth2client/_helpers.py in positional_wrapper(*args, **kwargs)
131                 elif positional_parameters_enforcement == POSITIONAL_WARNING:
132                     logger.warning(message)
--> 133             return wrapped(*args, **kwargs)
134         return positional_wrapper
135 

/Users/aaronpolhamus/anaconda/envs/credijusto/lib/python3.6/site-packages/googleapiclient/http.py in execute(self, http, num_retries)
838       callback(resp)
839     if resp.status >= 300:
--> 840       raise HttpError(resp, content, uri=self.uri)
841     return self.postproc(resp, content)
842 

HttpError: <HttpError 404 when requesting https://www.googleapis.com/drive/v3/files/P110vUov9J9rg2b1XoHMZ3Ssb4Z-FUUPKNQckuyxn_gmo/export?mimeType=application%2Fpdf returned "File not found: P110vUov9J9rg2b1XoHMZ3Ssb4Z-FUUPKNQckuyxn_gmo.">

现在，如果您转到链接，fileId实际上没有前导P1。我试着把前两个字符切掉，结果出现了一个500错误：

In [2]: DRIVE.files().export(fileId='10vUov9J9rg2b1XoHMZ3Ssb4Z-FUUPKNQckuyxn_gmo', mimeType='application/pdf').execute()

HttpError                                 Traceback (most recent call last)
<ipython-input-237-764cc68cfa0e> in <module>()
----> 1 DRIVE.files().export(fileId='10vUov9J9rg2b1XoHMZ3Ssb4Z-FUUPKNQckuyxn_gmo', mimeType='application/pdf').execute()

/Users/aaronpolhamus/anaconda/envs/credijusto/lib/python3.6/site-packages/oauth2client/_helpers.py in positional_wrapper(*args, **kwargs)
131                 elif positional_parameters_enforcement == POSITIONAL_WARNING:
132                     logger.warning(message)
--> 133             return wrapped(*args, **kwargs)
134         return positional_wrapper
135 

/Users/aaronpolhamus/anaconda/envs/credijusto/lib/python3.6/site-packages/googleapiclient/http.py in execute(self, http, num_retries)
838       callback(resp)
839     if resp.status >= 300:
--> 840       raise HttpError(resp, content, uri=self.uri)
841     return self.postproc(resp, content)
842 

HttpError: <HttpError 500 when requesting https://www.googleapis.com/drive/v3/files/10vUov9J9rg2b1XoHMZ3Ssb4Z-FUUPKNQckuyxn_gmo/export?mimeType=application%2Fpdf returned "Internal Error">

命令行和交互式案例之间的差异令人费解，因为我可以产生不同的错误，但还没有更接近于真正弄清楚发生了什么。我正在做完全相同的操作，粘贴在终端中打印的值相同的值。你知道吗

代码和示例数据都是公共的。有什么帮助吗？你知道吗