python - 如何有条件地传递不同的参数

Question

我希望能够在满足条件时将参数更改为函数。

目前我正在这样做，但我正在重复第一个参数，有没有办法只改变第二个参数？

credential = './credentials.json'

if os.path.exists(credential):
  account = authenticate(client_config=secrets, credentials=credential)
else:
  account = authenticate(client_config=secrets, serialize=credential)

Answer 1

一种优雅的方法是使用 kwargs:

credential = './credentials.json'
key = "credentials" if os.path.exists(credentials) else "serialize"
auth_kwargs = {"client_config": secrets, key: credential}    

account = authenticate(**auth_kwargs)