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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def notes(path):
 """This function extracts any experimental notes from a ProCoDA data file. :param path: The file path of the ProCoDA data file. If the file is in the working directory, then the file name is sufficient. :type path: string :return: The rows of the data file that contain text notes inserted during the experiment. Use this to identify the section of the data file that you want to extract. :rtype: pandas.Dataframe """

    df = pd.read_csv(path, delimiter='\t')
    text_row = df.iloc[0:-1, 0].str.contains('[a-z]', '[A-Z]')
    text_row_index = text_row.index[text_row].tolist()
    notes = df.loc[text_row_index]
    return notes