Beispiel #1
0
def init_args(args):
    global new_state, behaviour
    i = 0
    while i < len(args):
        if args[i] in ['-i', '--input']:
            f = fasta.read_from(args[i + 1])
            i += 1
            new_state['SEQUENCE'] = f[0].sequence
        elif args[i] in ['-f', '--fast']:
            behaviour["fast"] = True
        elif args[i] in ['-o', '--output']:
            i += 1
            behaviour["output"] = open(args[i], 'w')
        elif args[i] in ['-h', '--help']:
            print "Query Primer3"
            print "by Damien Leroux <*****@*****.**>"
            print
            print "Usage: %s [-f,--fast] [-o,--output filename]",
            print "[configuration_key=value...]" % args[0]
            print "Configuration keys:"
            for (k, v) in filter(lambda x: ' ' not in x, state.items()):
                if v:
                    print ' ', k.lower(), '(default %s)' % v
                else:
                    print ' ', k.lower()
            sys.exit(0)
        else:
            key, value = args[i].split("=")
            key = key.upper()
            if ' ' not in key and key in state:
                new_state[key] = value
            else:
                print "I don't know nothing about a '%s', I do mean it." % key
                sys.exit(1)
        i += 1
def main(argv):
    lines = files.read_lines(argv[0])
    tree = lines[0]
    strings = fasta.read_from(lines[1:])

    z, L = phylogeny.small_parsimony(tree, strings)

    print z
    print '\n'.join('>%s\n%s' % (key, value) for key, value in L.iteritems())
Beispiel #3
0
def extract(filename):
    global fcount, ftotal
    fcount += 1
    #print "\r%i/%i" % (fcount, ftotal),
    print "%i/%i" % (fcount, ftotal),
    exti = filename.rfind('.')
    ext = filename[exti:]
    path, query = os.path.split(filename[:exti])
    fhits = fasta.read_from(filename)
    print filename, exti, ext, path, query
    if query in fhits:
        fquery = fasta.Fasta()
        fquery.add_seq(fhits[query])
        fhits.remove(query)
        fhits.save_to(os.path.join(path, query + '-hits' + ext))
        fquery.save_to(os.path.join(path, query + '-query' + ext))
Beispiel #4
0
def main(argv):
    lines = files.read_lines(argv[0])
    tree = lines[0]
    strings = fasta.read_from(lines[1:])

    output = []
    for r in phylogeny.reverse_substitutions(tree, strings):
        path = r[0]
        position = r[1]
        original = strings[path[0].name][position]
        substituted = strings[path[1].name][position]
        reverted = strings[path[-1].name][position]
        output.append('%s %s %s %s->%s->%s' %
                      (path[1].name, path[-1].name, position + 1, original,
                       substituted, reverted))

    print '\n'.join(output)
Beispiel #5
0
#!/usr/bin/env python

from query_primer3 import query_primer3
import fasta
import sys
import re
import os

executable = True

if len(sys.argv) < 2:
    print "Usage: %s multi_fasta PRIMER3_ARG=VALUE..."

mfas = fasta.read_from(sys.argv[1])
primer3args = sys.argv[2:]

bad_chr = re.compile("[^a-zA-Z0-9_-]")

basedir, basename = os.path.split(sys.argv[1])

for i, s in enumerate(mfas):
    out = os.path.join(basedir, bad_chr.sub('_', s.header) + '.primer3')
    print '[%i/%i]' % (1 + i, len(mfas)), "Querying", s.header
    query_primer3(['SEQUENCE=' + s.sequence, '-o', out] + primer3args)