def _importSNPs_AgnosticSNP(setName, species, genomeSource, snpsFile):
"This function will also create an index on start->chromosomeNumber->setName. Warning : pyGeno wil interpret all positions as 0 based"
printf('importing SNP set %s for species %s...' % (setName, species))
snpData = CSVFile()
snpData.parse(snpsFile, separator="\t")
AgnosticSNP.dropIndex(('start', 'chromosomeNumber', 'setName'))
conf.db.beginTransaction()
pBar = ProgressBar(len(snpData))
pLabel = ''
currChrNumber = None
for snpEntry in snpData:
tmpChr = snpEntry['chromosomeNumber']
if tmpChr != currChrNumber:
currChrNumber = tmpChr
pLabel = 'Chr %s...' % currChrNumber
snp = AgnosticSNP()
snp.species = species
snp.setName = setName
for f in snp.getFields():
try:
setattr(snp, f, snpEntry[f])
except KeyError:
if f != 'species' and f != 'setName':
printf("Warning filetype as no key %s", f)
snp.quality = float(snp.quality)
snp.start = int(snp.start)
snp.end = int(snp.end)
snp.save()
pBar.update(label=pLabel)
pBar.close()
snpMaster = SNPMaster()
snpMaster.set(setName=setName, SNPType='AgnosticSNP', species=species)
snpMaster.save()
printf('saving...')
conf.db.endTransaction()
printf('creating indexes...')
AgnosticSNP.ensureGlobalIndex(('start', 'chromosomeNumber', 'setName'))
printf('importation of SNP set %s for species %s done.' %
(setName, species))
return True
def deleteGenome(species, name):
"""Removes a genome from the database"""
printf('deleting genome (%s, %s)...' % (species, name))
conf.db.beginTransaction()
objs = []
allGood = True
try:
genome = Genome_Raba(name=name, species=species.lower())
objs.append(genome)
pBar = ProgressBar(label='preparing')
for typ in (Chromosome_Raba, Gene_Raba, Transcript_Raba, Exon_Raba,
Protein_Raba):
pBar.update()
f = RabaQuery(typ, namespace=genome._raba_namespace)
f.addFilter({'genome': genome})
for e in f.iterRun():
objs.append(e)
pBar.close()
pBar = ProgressBar(nbEpochs=len(objs), label='deleting objects')
for e in objs:
pBar.update()
e.delete()
pBar.close()
except KeyError as e:
#~ printf("\tWARNING, couldn't remove genome form db, maybe it's not there: ", e)
raise KeyError(
"\tWARNING, couldn't remove genome form db, maybe it's not there: ",
e)
allGood = False
printf('\tdeleting folder')
try:
shutil.rmtree(conf.getGenomeSequencePath(species, name))
except OSError as e:
#~ printf('\tWARNING, Unable to delete folder: ', e)
OSError('\tWARNING, Unable to delete folder: ', e)
allGood = False
conf.db.endTransaction()
return allGood
def _importSNPs_dbSNPSNP(setName, species, genomeSource, snpsFile):
"This function will also create an index on start->chromosomeNumber->setName. Warning : pyGeno positions are 0 based"
snpData = VCFFile(snpsFile, gziped=True, stream=True)
dbSNPSNP.dropIndex(('start', 'chromosomeNumber', 'setName'))
conf.db.beginTransaction()
pBar = ProgressBar()
pLabel = ''
for snpEntry in snpData:
pBar.update(label='Chr %s, %s...' %
(snpEntry['#CHROM'], snpEntry['ID']))
snp = dbSNPSNP()
for f in snp.getFields():
try:
setattr(snp, f, snpEntry[f])
except KeyError:
pass
snp.chromosomeNumber = snpEntry['#CHROM']
snp.species = species
snp.setName = setName
snp.start = snpEntry['POS'] - 1
snp.alt = snpEntry['ALT']
snp.ref = snpEntry['REF']
snp.end = snp.start + len(snp.alt)
snp.save()
pBar.close()
snpMaster = SNPMaster()
snpMaster.set(setName=setName, SNPType='dbSNPSNP', species=species)
snpMaster.save()
printf('saving...')
conf.db.endTransaction()
printf('creating indexes...')
dbSNPSNP.ensureGlobalIndex(('start', 'chromosomeNumber', 'setName'))
printf('importation of SNP set %s for species %s done.' %
(setName, species))
return True
if __name__ == '__main__' :
from pyGeno.tools.ProgressBar import ProgressBar
#v = VCFFile('/u/daoudat/py/pySrc/pyGeno_stuff/V2/packages/dbSNP/human/dbSNP138/00-All.vcf.gz', gziped = True, stream = True)
v = VCFFile('/u/daoudat/py/pySrc/pyGeno_stuff/V2/packages/dbSNP/human/dbSNP138/test/00-All-test.vcf.gz', gziped = True, stream = True)
startTime = time.time()
i = 0
pBar = ProgressBar()
for f in v :
#print f
pBar.update('%s' % i)
if i > 1000000 :
break
i += 1
pBar.close()
#v = VCFFile('/u/daoudat/py/pySrc/pyGeno_stuff/V2/packages/dbSNP/human/dbSNP138/00-All.vcf', gziped = False, stream = True)
v = VCFFile('/u/daoudat/py/pySrc/pyGeno_stuff/V2/packages/dbSNP/human/dbSNP138/test/00-All-test.vcf', gziped = False, stream = False)
startTime = time.time()
i = 0
pBar = ProgressBar()
for f in v :
pBar.update('%s' % i)
if i > 1000000 :
break
i += 1
#print f
pBar.close()
#print v.lines
def save_chros(self):
pBar = ProgressBar(nbEpochs=len(self.chromosomes))
for c in self.chromosomes.itervalues():
pBar.update(label='Chr %s' % c.number)
c.save()
pBar.close()
def _importGenomeObjects(gtfFilePath, chroSet, genome, batchSize, verbose=0):
"""verbose must be an int [0, 4] for various levels of verbosity"""
class Store(object):
def __init__(self, conf):
self.conf = conf
self.chromosomes = {}
self.genes = {}
self.transcripts = {}
self.proteins = {}
self.exons = {}
def batch_save(self):
self.conf.db.beginTransaction()
for c in self.genes.itervalues():
c.save()
conf.removeFromDBRegistery(c)
for c in self.transcripts.itervalues():
c.save()
conf.removeFromDBRegistery(c.exons)
conf.removeFromDBRegistery(c)
for c in self.proteins.itervalues():
c.save()
conf.removeFromDBRegistery(c)
self.conf.db.endTransaction()
del (self.genes)
del (self.transcripts)
del (self.proteins)
del (self.exons)
self.genes = {}
self.transcripts = {}
self.proteins = {}
self.exons = {}
gc.collect()
def save_chros(self):
pBar = ProgressBar(nbEpochs=len(self.chromosomes))
for c in self.chromosomes.itervalues():
pBar.update(label='Chr %s' % c.number)
c.save()
pBar.close()
printf('Importing gene set infos from %s...' % gtfFilePath)
printf('Backuping indexes...')
indexes = conf.db.getIndexes()
printf(
"Droping all your indexes, (don't worry i'll restore them later)...")
Genome_Raba.flushIndexes()
Chromosome_Raba.flushIndexes()
Gene_Raba.flushIndexes()
Transcript_Raba.flushIndexes()
Protein_Raba.flushIndexes()
Exon_Raba.flushIndexes()
printf("Parsing gene set...")
gtf = GTFFile(gtfFilePath, gziped=True)
printf('Done. Importation begins!')
store = Store(conf)
chroNumber = None
pBar = ProgressBar(nbEpochs=len(gtf))
for line in gtf:
chroN = line['seqname']
pBar.update(label="Chr %s" % chroN)
if (chroN.upper() in chroSet or chroN.lower() in chroSet):
strand = line['strand']
gene_biotype = line['gene_biotype']
regionType = line['feature']
frame = line['frame']
start = int(line['start']) - 1
end = int(line['end'])
if start > end:
start, end = end, start
chroNumber = chroN.upper()
if chroNumber not in store.chromosomes:
store.chromosomes[chroNumber] = Chromosome_Raba()
store.chromosomes[chroNumber].set(genome=genome,
number=chroNumber)
try:
geneId = line['gene_id']
geneName = line['gene_name']
except KeyError:
geneId = None
geneName = None
if verbose:
printf('Warning: no gene_id/name found in line %s' %
gtf[i])
if geneId is not None:
if geneId not in store.genes:
if len(store.genes) > batchSize:
store.batch_save()
if verbose > 0:
printf('\tGene %s, %s...' % (geneId, geneName))
store.genes[geneId] = Gene_Raba()
store.genes[geneId].set(
genome=genome,
id=geneId,
chromosome=store.chromosomes[chroNumber],
name=geneName,
strand=strand,
biotype=gene_biotype)
if start < store.genes[geneId].start or store.genes[
geneId].start is None:
store.genes[geneId].start = start
if end > store.genes[geneId].end or store.genes[
geneId].end is None:
store.genes[geneId].end = end
try:
transId = line['transcript_id']
transName = line['transcript_name']
except KeyError:
transId = None
transName = None
if verbose > 2:
printf(
'\t\tWarning: no transcript_id, name found in line %s'
% gtf[i])
if transId is not None:
if transId not in store.transcripts:
if verbose > 1:
printf('\t\tTranscript %s, %s...' %
(transId, transName))
store.transcripts[transId] = Transcript_Raba()
store.transcripts[transId].set(
genome=genome,
id=transId,
chromosome=store.chromosomes[chroNumber],
gene=store.genes.get(geneId, None),
name=transName)
if start < store.transcripts[
transId].start or store.transcripts[
transId].start is None:
store.transcripts[transId].start = start
if end > store.transcripts[transId].end or store.transcripts[
transId].end is None:
store.transcripts[transId].end = end
try:
protId = line['protein_id']
except KeyError:
protId = None
if verbose > 2:
printf('Warning: no protein_id found in line %s' %
gtf[i])
if protId is not None and protId not in store.proteins:
if verbose > 1:
printf('\t\tProtein %s...' % (protId))
store.proteins[protId] = Protein_Raba()
store.proteins[protId].set(
genome=genome,
id=protId,
chromosome=store.chromosomes[chroNumber],
gene=store.genes.get(geneId, None),
transcript=store.transcripts.get(transId, None),
name=transName)
store.transcripts[transId].protein = store.proteins[protId]
try:
exonNumber = int(line['exon_number']) - 1
exonKey = (transId, exonNumber)
except KeyError:
exonNumber = None
exonKey = None
if verbose > 2:
printf(
'Warning: no exon number or id found in line %s' %
gtf[i])
if exonKey is not None:
if verbose > 3:
printf('\t\t\texon %s...' % (exonId))
if exonKey not in store.exons:
store.exons[exonKey] = Exon_Raba()
store.exons[exonKey].set(
genome=genome,
chromosome=store.chromosomes[chroNumber],
gene=store.genes.get(geneId, None),
transcript=store.transcripts.get(transId, None),
protein=store.proteins.get(protId, None),
strand=strand,
number=exonNumber,
start=start,
end=end)
store.transcripts[transId].exons.append(
store.exons[exonKey])
try:
store.exons[exonKey].id = line['exon_id']
except KeyError:
pass
if regionType == 'exon':
if start < store.exons[exonKey].start or store.exons[
exonKey].start is None:
store.exons[exonKey].start = start
if end > store.transcripts[transId].end or store.exons[
exonKey].end is None:
store.exons[exonKey].end = end
elif regionType == 'CDS':
store.exons[exonKey].CDS_start = start
store.exons[exonKey].CDS_end = end
store.exons[exonKey].frame = frame
elif regionType == 'stop_codon':
if strand == '+':
store.exons[exonKey].end += 3
if store.exons[exonKey].CDS_end != None:
store.exons[exonKey].CDS_end += 3
if strand == '-':
if store.exons[exonKey].CDS_start != None:
store.exons[exonKey].CDS_start -= 3
pBar.close()
store.batch_save()
conf.db.beginTransaction()
printf('almost done saving chromosomes...')
store.save_chros()
printf('saving genome object...')
genome.save()
conf.db.endTransaction()
conf.db.beginTransaction()
printf('restoring core indexes...')
# Genome.ensureGlobalIndex(('name', 'species'))
# Chromosome.ensureGlobalIndex('genome')
# Gene.ensureGlobalIndex('genome')
# Transcript.ensureGlobalIndex('genome')
# Protein.ensureGlobalIndex('genome')
# Exon.ensureGlobalIndex('genome')
Transcript.ensureGlobalIndex('exons')
printf('commiting changes...')
conf.db.endTransaction()
conf.db.beginTransaction()
printf('restoring user indexes')
pBar = ProgressBar(label="restoring", nbEpochs=len(indexes))
for idx in indexes:
pBar.update()
conf.db.execute(idx[-1].replace('CREATE INDEX',
'CREATE INDEX IF NOT EXISTS'))
pBar.close()
printf('commiting changes...')
conf.db.endTransaction()
return store.chromosomes.values()
def importGenome(packageFile, batchSize=50, verbose=0):
"""Import a pyGeno genome package. A genome packages is a tar.gz ball that contains at it's root:
* gziped fasta files for all chromosomes, or URLs from where them must be downloaded
* gziped GTF gene_set file from Ensembl, or an URL from where it must be downloaded
* a manifest.ini file such as::
[package_infos]
description = Test package. This package installs only chromosome Y of mus musculus
maintainer = Tariq Daouda
maintainer_contact = tariq.daouda [at] umontreal
version = GRCm38.73
[genome]
species = Mus_musculus
name = GRCm38_test
source = http://useast.ensembl.org/info/data/ftp/index.html
[chromosome_files]
Y = Mus_musculus.GRCm38.73.dna.chromosome.Y.fa.gz / or an url such as ftp://... or http://
[gene_set]
gtf = Mus_musculus.GRCm38.73_Y-only.gtf.gz / or an url such as ftp://... or http://
All files except the manifest can be downloaded from: http://useast.ensembl.org/info/data/ftp/index.html
A rollback is performed if an exception is caught during importation
batchSize sets the number of genes to parse before performing a database save. PCs with little ram like
small values, while those endowed with more memory may perform faster with higher ones.
Verbose must be an int [0, 4] for various levels of verbosity
"""
def reformatItems(items):
s = str(items)
s = s.replace('[', '').replace(']', '').replace("',", ': ').replace(
'), ', '\n').replace("'", '').replace('(', '').replace(')', '')
return s
printf('Importing genome package: %s... (This may take a while)' %
packageFile)
packageDir = _decompressPackage(packageFile)
parser = SafeConfigParser()
parser.read(os.path.normpath(packageDir + '/manifest.ini'))
packageInfos = parser.items('package_infos')
genomeName = parser.get('genome', 'name')
species = parser.get('genome', 'species')
genomeSource = parser.get('genome', 'source')
seqTargetDir = conf.getGenomeSequencePath(species.lower(), genomeName)
if os.path.isdir(seqTargetDir):
raise KeyError(
"The directory %s already exists, Please call deleteGenome() first if you want to reinstall"
% seqTargetDir)
gtfFile = _getFile(parser.get('gene_set', 'gtf'), packageDir)
chromosomesFiles = {}
chromosomeSet = set()
for key, fil in parser.items('chromosome_files'):
chromosomesFiles[key] = _getFile(fil, packageDir)
chromosomeSet.add(key)
try:
genome = Genome(name=genomeName, species=species)
except KeyError:
pass
else:
raise KeyError(
"There seems to be already a genome (%s, %s), please call deleteGenome() first if you want to reinstall it"
% (genomeName, species))
genome = Genome_Raba()
genome.set(name=genomeName,
species=species,
source=genomeSource,
packageInfos=packageInfos)
printf("Importing:\n\t%s\nGenome:\n\t%s\n..." %
(reformatItems(packageInfos).replace('\n', '\n\t'),
reformatItems(parser.items('genome')).replace('\n', '\n\t')))
chros = _importGenomeObjects(gtfFile, chromosomeSet, genome, batchSize,
verbose)
os.makedirs(seqTargetDir)
startChro = 0
pBar = ProgressBar(nbEpochs=len(chros))
for chro in chros:
pBar.update(label="Importing DNA, chro %s" % chro.number)
length = _importSequence(chro, chromosomesFiles[chro.number.lower()],
seqTargetDir)
chro.start = startChro
chro.end = startChro + length
startChro = chro.end
pBar.close()
shutil.rmtree(packageDir)
#~ objgraph.show_most_common_types(limit=20)
return True
