Google Drive API无法找到文件求助：凭据文件路径问题排查

Absolutely, switching to an absolute file path should resolve that frustrating error—here's why it works, plus a few other reliable solutions to try:

Why your absolute path fix works #

Python looks for files in your current working directory by default. If your client_secret.json is stored somewhere else (like your Documents folder) but you're running the script from a different folder, Python can't locate it. Using a raw string (the r prefix) ensures Windows path backslashes don't get misinterpreted as escape characters. As long as you finish typing the full, correct path to your client_secret.json file, this method will definitely fix the issue.

Other actionable solutions #

• Move the credentials file to your script's working directory
  First, check where your script is running from by adding this line to your code:

  import os
  print(os.getcwd())
  

  Copy client_secret.json into that directory, and your original relative path code will work without any changes.

• Use an environment variable
  Set a system environment variable named GOOGLE_APPLICATION_CREDENTIALS with the full absolute path to your client_secret.json file. Then update your code to pull the path from the environment:

  import os
  creds_path = os.environ.get('GOOGLE_APPLICATION_CREDENTIALS')
  flow = client.flow_from_clientsecrets(creds_path, SCOPES)
  

  This keeps your code clean and makes it easier to switch between machines or environments.

• Leverage Pathlib (Python 3.4+)
  For a more modern, cross-platform-friendly approach, use Python's Pathlib module to handle paths seamlessly:

  from pathlib import Path
  creds_path = Path(r'C:\Users\FIEND\Documents\Google Sheets Scripts\client_secret.json')
  flow = client.flow_from_clientsecrets(str(creds_path), SCOPES)
  

  Pathlib automatically handles Windows/macOS/Linux path separators, so you won't have to worry about escape characters or path format differences.

内容的提问来源于stack exchange，提问作者Le Dude