What is the method to confirm if a Pandas column exists?

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To confirm if a Pandas column exists, you can use the in operator to check if the column name is present in the list of column names:

if column_name in df.columns:
    print("Column exists!")
else:
    print("Column does not exist.")

Here, df is the Pandas DataFrame and column_name is the name of the column that you want to check. df.columns returns a list of all the column names in the DataFrame. The in operator checks if column_name is present in this list, and returns True if it is.