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1 import sys
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2 import argparse
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3
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4 def Parser():
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5 the_parser = argparse.ArgumentParser(description="add label to last column of file")
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6 the_parser.add_argument('--input', required=True, action="store", type=str, help="input tabular file")
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7 the_parser.add_argument('--output', required=True, action="store", type=str, help="output file path")
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8 the_parser.add_argument('--label', required=True, action="store", type=str, help="label to add in last column")
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9 the_parser.add_argument('--header', action="store", type=str, help="column label for last column")
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10 args = the_parser.parse_args()
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11 return args
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12
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13 args=Parser()
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14
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15 input=open(args.input)
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16 output=open(args.output, 'w')
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17 for i,line in enumerate(input):
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18 line=line.strip('\n')
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19 if (i==0) and (args.header!=None):
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20 line=line+'\t'+args.header
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21 else:
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22 line=line+'\t'+args.label
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23 print >>output, line
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24 input.close()
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25 output.close()
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