def phred_13_to_18(self, new_path=None, in_place=True):
<EOL>if new_path is None: new_fastq = self.__class__(new_temp_path(suffix=self.extension))<EOL>else:                new_fastq = self.__class__(new_path)<EOL>self.format = '<STR_LIT>'<EOL>new_fastq.open('<STR_LIT:w>')<EOL>new_fastq.handle.writelines(seq.format('<STR_LIT>') for seq in self)<EOL>new_fastq.close()<EOL>self.format = '<STR_LIT>'<EOL>if in_place:<EOL><INDENT>os.remove(self.path)<EOL>shutil.move(new_fastq, self.path)<EOL>return self<EOL><DEDENT>else: return new_fastq<EOL>
Illumina-1.3 format conversion to Illumina-1.8 format via BioPython.