annotate SMART/Java/Python/wrongFastqToQual.py @ 6:769e306b7933

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author yufei-luo
date Fri, 18 Jan 2013 04:54:14 -0500
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1 #! /usr/bin/env python
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2 #
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3 # Copyright INRA-URGI 2009-2010
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4 #
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5 # This software is governed by the CeCILL license under French law and
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6 # abiding by the rules of distribution of free software. You can use,
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7 # modify and/ or redistribute the software under the terms of the CeCILL
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8 # license as circulated by CEA, CNRS and INRIA at the following URL
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9 # "http://www.cecill.info".
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10 #
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11 # As a counterpart to the access to the source code and rights to copy,
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12 # modify and redistribute granted by the license, users are provided only
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13 # with a limited warranty and the software's author, the holder of the
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14 # economic rights, and the successive licensors have only limited
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15 # liability.
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16 #
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17 # In this respect, the user's attention is drawn to the risks associated
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18 # with loading, using, modifying and/or developing or reproducing the
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19 # software by the user in light of its specific status of free software,
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20 # that may mean that it is complicated to manipulate, and that also
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21 # therefore means that it is reserved for developers and experienced
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22 # professionals having in-depth computer knowledge. Users are therefore
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23 # encouraged to load and test the software's suitability as regards their
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24 # requirements in conditions enabling the security of their systems and/or
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25 # data to be ensured and, more generally, to use and operate it in the
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26 # same conditions as regards security.
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27 #
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28 # The fact that you are presently reading this means that you have had
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29 # knowledge of the CeCILL license and that you accept its terms.
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30 #
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31 """Convert a pseudo-FASTQ file to QUAL files"""
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32
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33 import os
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34 from optparse import OptionParser
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35 from SMART.Java.Python.misc.Progress import *
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36 from math import *
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37
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38 if __name__ == "__main__":
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39
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40 # parse command line
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41 description = "Wrong FastQ to Qual v1.0.1: Convert a pseudo-FastQ (i.e. a FastQ file with a wrong format) into a Qual file. [Category: Personnal]"
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42
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43 parser = OptionParser(description = description)
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44 parser.add_option("-i", "--input", dest="inputFileName", action="store", type="string", help="input file [compulsory] [format: file in FASTQ format]")
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45 parser.add_option("-o", "--output", dest="outputFileName", action="store", type="string", help="output file [compulsory] [format: output file in QUAL format]")
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46 parser.add_option("-v", "--verbosity", dest="verbosity", action="store", default=1, type="int", help="trace level [format: int] [default: 1]")
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47 (options, args) = parser.parse_args()
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48
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49 inputFile = open(options.inputFileName)
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50 outputFastaFile = open("%s.fasta" % (options.outputFileName), "w")
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51 outputQualFile = open("%s.qual" % (options.outputFileName), "w")
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52
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53 inSequence = False
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54 inQuality = True
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55 sequenceName = None
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56 for line in inputFile:
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57 line = line.strip()
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58 if line[0] == "@":
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59 if inQuality == False:
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60 sys.exit("Quality of %s is missing" % (sequenceName))
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61 inSequence = True
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62 inQuality = False
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63 sequenceName = line[1:]
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64 outputFastaFile.write(">%s\n" % (sequenceName))
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65 elif line[0] == "+":
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66 if inSequence == False:
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67 sys.exit("Sequence of %s is missing" % (line[1:]))
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68 inSequence = False
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69 inQuality = True
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70 if sequenceName != line[1:]:
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71 sys.exit("Names in sequence and qual are different (%s, %s)" % (sequenceName, line[1:]))
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72 outputQualFile.write(">%s\n" % (sequenceName))
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73 else:
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74 if inSequence:
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75 outputFastaFile.write("%s\n" % (line))
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76 elif inQuality:
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77 outputQualFile.write("%s\n" % (line))
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78
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79 inputFile.close()
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80 outputFastaFile.close()
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81 outputQualFile.close()