如何在Python中计算相对路径？

Question

If I write

current_path = os.path.dirname(os.path.abspath(__file__))

Then I get the path to the current file running.

What I need is the absolute path from the current file to:

'../Data/my_data.csv'

How do I use os to output the absolute path to '../Data/my_data.csv' without changing my working directory or anything else?

Answer 1

You can use os.path.join:

current_path = os.path.dirname(os.path.abspath(__file__))
new_path = os.path.join(current_path, '..', 'Data', 'my_data.csv')

Answer 2

你可以做类似的事情

'{}/../Data/my_data.csv'.format(current_path)