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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 from_file(filepath, delimiter='', blanklines=False):
 """Imports userdata from a file. :type filepath: string :param filepath The absolute path to the file. :type delimiter: string :param: delimiter Delimiter to use with the troposphere.Join(). :type blanklines: boolean :param blanklines If blank lines shoud be ignored rtype: troposphere.Base64 :return The base64 representation of the file. """

    data = []

    try:
        with open(filepath, 'r') as f:
            for line in f:
                if blanklines and line.strip('\n\r ') == '':
                    continue

                data.append(line)
    except IOError:
        raise IOError('Error opening or reading file: {}'.format(filepath))

    return Base64(Join(delimiter, data))