Migrate removed DataFrame.append() to pd.concat()
ProprietaryDataFrame.append() no longer exists in pandas 2.0+. This recipe rewrites df.append(other) to pd.concat([df, other]) where both df and other are a pandas DataFrame, so it only fires where their types resolve. It leaves alone a call with keyword arguments, comments, or a Series, dict or list argument, which concat treats differently.
org.mod run .Install it once, then run it on every repository under the current directory. New to the Moderne CLI? Set it up.