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1 #
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2 # Copyright INRA-URGI 2009-2010
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3 #
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4 # This software is governed by the CeCILL license under French law and
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5 # abiding by the rules of distribution of free software. You can use,
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6 # modify and/ or redistribute the software under the terms of the CeCILL
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7 # license as circulated by CEA, CNRS and INRIA at the following URL
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8 # "http://www.cecill.info".
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9 #
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10 # As a counterpart to the access to the source code and rights to copy,
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11 # modify and redistribute granted by the license, users are provided only
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12 # with a limited warranty and the software's author, the holder of the
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13 # economic rights, and the successive licensors have only limited
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14 # liability.
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15 #
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16 # In this respect, the user's attention is drawn to the risks associated
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17 # with loading, using, modifying and/or developing or reproducing the
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18 # software by the user in light of its specific status of free software,
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19 # that may mean that it is complicated to manipulate, and that also
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20 # therefore means that it is reserved for developers and experienced
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21 # professionals having in-depth computer knowledge. Users are therefore
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22 # encouraged to load and test the software's suitability as regards their
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23 # requirements in conditions enabling the security of their systems and/or
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24 # data to be ensured and, more generally, to use and operate it in the
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25 # same conditions as regards security.
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26 #
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27 # The fact that you are presently reading this means that you have had
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28 # knowledge of the CeCILL license and that you accept its terms.
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29 #
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30
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31 class TranscriptListIterator(object):
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32 """A class that iterates on a list of transcript"""
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33
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34 def __init__(self, transcriptList, verbosity = 0):
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35 self.transcriptList = transcriptList
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36 self.verbosity = verbosity
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37 self.chromosomes = self.transcriptList.transcripts.keys()
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38 self.currentChromosome = 0
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39 self.currentTranscript = -1
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40
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41
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42 def __iter__(self):
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43 return self
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44
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45
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46 def next(self):
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47 self.currentTranscript += 1
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48 while True:
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49 if self.currentChromosome >= len(self.transcriptList.transcripts):
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50 raise StopIteration
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51 elif self.currentTranscript >= len(self.transcriptList.transcripts[self.chromosomes[self.currentChromosome]]):
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52 self.currentTranscript = 0
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53 self.currentChromosome += 1
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54 elif self.transcriptList.transcripts[self.chromosomes[self.currentChromosome]][self.currentTranscript] == None:
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55 self.currentTranscript += 1
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56 else:
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57 return self.transcriptList.transcripts[self.chromosomes[self.currentChromosome]][self.currentTranscript]
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58
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