How to mention Mac Home folder in yaml file

Question

Can someone tell me how to mention Mac Home folder in yaml file?

I have a settings.yaml file that I use in my Python code to connect to GDrive. It exports the credentials to a JSON file and I want that to extract to GDrive folder in Home directory.

settings.yaml

    client_config_backend: 'settings'
    client_config:
      client_id: "something"
      client_secret: "something"
      auth_uri: "https://accounts.google.com/o/oauth2/auth"
      token_uri: "https://oauth2.googleapis.com/token"

    save_credentials: True
    save_credentials_backend: 'file'
    save_credentials_file: '/Users/machinename/GDrive/credentials.json'

And in the python file, it is mentioned like this:

gauth = GoogleAuth(settings_file='settings.yaml')
gauth.LoadCredentialsFile('/Users/machinename/GDrive/credentials.json')

So, different people will run this in different machines and the machinename will vary, so I am trying to provide the dynamic version for Home directory. I tried ~/GDrive/credentials.json but it did not work.

Can someone help how to declare home directory in the yaml file?

Answer 1

The home folder is denoted as ~ .
The problem is you need to expand, and you can do by using os :

import os

os.path.expanduser("~/GDrive/credentials.json")

UPDATE

If you want to store it in the yaml code, it's the same thing:

settings.yaml

client_config_backend: 'settings'
client_config:
  client_id: "something"
  client_secret: "something"
  auth_uri: "https://accounts.google.com/o/oauth2/auth"
  token_uri: "https://oauth2.googleapis.com/token"

save_credentials: True
save_credentials_backend: 'file'
save_credentials_file: '~/GDrive/credentials.json'

Then, in the python:

credentials_file = "settings.yaml"
with open(credentials_file, "r") as f:
    credentials_info = yaml.load(f)
gauth = GoogleAuth(settings_file=credentials_file)
gauth.LoadCredentialsFile(os.path.expanduser(credentials_info['save_credentials_file'))

Answer 2

This may achieve what you wanted

In settings.yaml
    save_credentials_file: '$HOME/GDrive/credentials.json'
...
In python, put '$HOME/GDrive/credentials.json' into variable save_credentials_file,

gauth.LoadCredentialsFile(os.path.expandvars(save_credentials_file))