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- #!/usr/bin/env python
- import sys
- if __name__ == '__main__':
- if len(sys.argv) != 3:
- print(sys.argv[0], 'input_file output_file')
- sys.exit(1)
- with open(sys.argv[1]) as f:
- ifile = f.read()
- if ifile != 'This is a text only input file.\n':
- print('Malformed input')
- sys.exit(1)
- with open(sys.argv[2], 'w') as ofile:
- ofile.write('This is a binary output file.\n')
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