comparison tools/maf/maf_to_interval.py @ 0:9071e359b9a3

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author xuebing
date Fri, 09 Mar 2012 19:37:19 -0500
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-1:000000000000 0:9071e359b9a3
1 #!/usr/bin/env python
2
3 """
4 Read a maf and output intervals for specified list of species.
5 """
6 import sys, os
7 from galaxy import eggs
8 import pkg_resources; pkg_resources.require( "bx-python" )
9 from bx.align import maf
10 from galaxy.tools.util import maf_utilities
11
12 assert sys.version_info[:2] >= ( 2, 4 )
13
14 def __main__():
15 input_filename = sys.argv[1]
16 output_filename = sys.argv[2]
17 output_id = sys.argv[3]
18 #where to store files that become additional output
19 database_tmp_dir = sys.argv[4]
20 primary_spec = sys.argv[5]
21 species = sys.argv[6].split( ',' )
22 all_species = sys.argv[7].split( ',' )
23 partial = sys.argv[8]
24 keep_gaps = sys.argv[9]
25 out_files = {}
26
27 if "None" in species:
28 species = []
29
30 if primary_spec not in species:
31 species.append( primary_spec )
32 if primary_spec not in all_species:
33 all_species.append( primary_spec )
34
35 all_species.sort()
36 for spec in species:
37 if spec == primary_spec:
38 out_files[ spec ] = open( output_filename, 'wb+' )
39 else:
40 out_files[ spec ] = open( os.path.join( database_tmp_dir, 'primary_%s_%s_visible_interval_%s' % ( output_id, spec, spec ) ), 'wb+' )
41 out_files[ spec ].write( '#chrom\tstart\tend\tstrand\tscore\tname\t%s\n' % ( '\t'.join( all_species ) ) )
42 num_species = len( all_species )
43
44 file_in = open( input_filename, 'r' )
45 maf_reader = maf.Reader( file_in )
46
47 for i, m in enumerate( maf_reader ):
48 for j, block in enumerate( maf_utilities.iter_blocks_split_by_species( m ) ):
49 if len( block.components ) < num_species and partial == "partial_disallowed": continue
50 sequences = {}
51 for c in block.components:
52 spec, chrom = maf_utilities.src_split( c.src )
53 if keep_gaps == 'remove_gaps':
54 sequences[ spec ] = c.text.replace( '-', '' )
55 else:
56 sequences[ spec ] = c.text
57 sequences = '\t'.join( [ sequences.get( spec, '' ) for spec in all_species ] )
58 for spec in species:
59 c = block.get_component_by_src_start( spec )
60 if c is not None:
61 spec2, chrom = maf_utilities.src_split( c.src )
62 assert spec2 == spec, Exception( 'Species name inconsistancy found in component: %s != %s' % ( spec, spec2 ) )
63 out_files[ spec ].write( "%s\t%s\t%s\t%s\t%s\t%s\t%s\n" % ( chrom, c.forward_strand_start, c.forward_strand_end, c.strand, m.score, "%s_%s_%s" % (spec, i, j), sequences ) )
64 file_in.close()
65 for file_out in out_files.values():
66 file_out.close()
67
68 if __name__ == "__main__": __main__()