Capstone Project: Life Expectancy and GDP Data

Hi can some please explain why this error message is coming up?

What does pandas.read_csv expect and what is being passed to it? That error means that there’s no object with that name/identifier in the current scope. It’s no different than a statement like print(x) when no variable named x exists.

Here’s the link to the relevant docs-
https://pandas.pydata.org/pandas-docs/stable/reference/api/pandas.read_csv.html

all.csv should be wrapped in quotation marks like “all.csv” or ‘all.csv’