Why does my Pandas DataFrame not display new order using `sort_values`?

Question

New to Pandas, so maybe I\'m missing a big idea? I have a Pandas DataFrame of register transactions with shape like (500,4):

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Answer 1

My problem, fyi, was that I wasn't returning the resulting dataframe, so PyCharm wasn't bothering to update said dataframe. Naming the dataframe after the return keyword fixed the issue.

Edit: I had return at the end of my method instead of return df, which the debugger must of noticed, because df wasn't being updated in spite of my explicit, in-place sort.