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aaronmk
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#!/usr/bin/env python
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# Intersects two map spreadsheets A0->B and A1->C to A->B, with B overwriting C
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import csv
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import os.path
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import sys
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sys.path.append(os.path.dirname(__file__)+"/../lib")
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import maps
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1525
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aaronmk
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import util
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aaronmk
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def main():
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aaronmk
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try: _prog_name, map_1_path = sys.argv[:2]
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aaronmk
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except ValueError:
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raise SystemExit('Usage: '+sys.argv[0]+' <map_0 map_1 '
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'[compare_col_num...] [| '+sys.argv[0]
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aaronmk
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+' map_2]... >intersect_map')
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compare_col_nums = map(int, sys.argv[2:]) # 0-based
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if compare_col_nums == []:
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compare_col_nums = None # list_subset() value for all columns
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aaronmk
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aaronmk
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def compare_on(row): return tuple(util.list_subset(row, compare_col_nums))
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headers = [None]*2
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# Get map 1
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compare_cols = set()
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stream = open(map_1_path, 'rb')
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reader = csv.reader(stream)
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headers[1] = reader.next()
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for row in reader:
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if row[0] != '':
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compare_cols.add(compare_on(row))
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aaronmk
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stream.close()
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# Open map 0
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reader = csv.reader(sys.stdin)
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headers[0] = reader.next()
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# Check col labels
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combinable = maps.combinable(*headers)
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if not combinable and not ignore:
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raise SystemExit('Map error: '
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'Map 0 column 0 label doesn\'t contain map 1 column 0 label')
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# Add map 0 to map 1, overwriting existing entries
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writer = csv.writer(sys.stdout)
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writer.writerow(headers[0])
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for row in reader:
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if not combinable or compare_on(row) in compare_cols:
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# not combinable, or in map 1
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writer.writerow(row)
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aaronmk
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main()
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