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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 get_string(self):
 """Make a string reprentation of the error stats. :returns: error profile :rtype: string """

    ostr = ''
    ostr += str(len(self._alignment_errors))+" Alignments\n"
    ostr += 'Target: '+"\n"
    totbases = sum([len(x.get_target_sequence()) for x in self._alignment_errors])
    ostr += '  '+str(totbases)+" Target Bases\n"
    adjerror = sum([sum([y.get_error_probability() for y in x.get_target_errors()]) for x in self._alignment_errors])
    ostr += '  '+str(adjerror)+" Approximate error count\n"
    ostr += '  '+str(float(adjerror)/float(totbases))+" Error rate\n"
    ostr += 'Query: '+"\n"
    totbases = sum([len(x.get_query_sequence()) for x in self._alignment_errors])
    ostr += '  '+str(totbases)+" Query Bases\n"
    adjerror = sum([sum([y.get_error_probability() for y in x.get_query_errors()]) for x in self._alignment_errors])
    ostr += '  '+str(adjerror)+" Approximate error count\n"
    ostr += '  '+str(float(adjerror)/float(totbases))+" Error rate\n"
    return ostr