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- #!/usr/bin/env python3
- import os
- import sys
- assert(os.path.exists(sys.argv[3]))
- args = sys.argv[:-1]
- if __name__ == '__main__':
- if len(args) != 3 or not args[1].startswith('--input') or \
- not args[2].startswith('--output'):
- print(args[0], '--input=input_file --output=output_file')
- sys.exit(1)
- with open(args[1].split('=')[1]) as f:
- ifile = f.read()
- if ifile != 'This is a text only input file.\n':
- print('Malformed input')
- sys.exit(1)
- with open(args[2].split('=')[1], 'w') as ofile:
- ofile.write('This is a binary output file.\n')
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