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import sys
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import string
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_ltext = '''
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RADIANCE LICENSE AGREEMENT
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Radiance is a registered copyright of The Regents of the University of
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California ("The Regents"). The Regents grant to you a nonexclusive,
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nontransferable license ("License") to use Radiance source code without
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fee. You may not sell or distribute Radiance to others without the
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prior express written permission of The Regents. You may compile and
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use this software on any machines to which you have personal access,
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and may share its use with others who have access to the same machines.
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NEITHER THE UNITED STATES NOR THE UNITED STATES DEPARTMENT OF ENERGY, NOR ANY
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OF THEIR EMPLOYEES, MAKES ANY WARRANTY, EXPRESS OR IMPLIED, OR ASSUMES ANY
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LEGAL LIABILITY OR RESPONSIBILITY FOR THE ACCURACY, COMPLETENESS, OR USEFULNESS
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OF ANY INFORMATION, APPARATUS, PRODUCT, OR PROCESS DISCLOSED, OR REPRESENTS
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THAT ITS USE WOULD NOT INFRINGE PRIVATELY OWNED RIGHTS. By downloading, using
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or copying this software, you agree to abide by the intellectual property laws
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and all other applicable laws of the United States, and by the terms of this
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License Agreement. Ownership of the software shall remain solely in The
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Regents. The Regents shall have the right to terminate this License
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immediately by written notice upon your breach of, or noncompliance with, any
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of its terms. You shall be liable for any infringement or damages resulting
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from your failure to abide by the terms of this License Agreement.
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'''
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def show_license():
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sys.stderr.write(_ltext)
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sys.stderr.write(
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'Do you understand and accept the terms of this agreement [n]?\n\n')
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answer = ''
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s = 'Please enter "yes" or "no", or use ^C to exit: '
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while answer not in ['y', 'ye', 'yes', 'n', 'no']:
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if answer: sys.stderr.write('invalid input "%s"\n' % answer)
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answer = string.lower(raw_input(s))
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if answer[0] == 'y':
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return
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else:
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sys.stderr.write('\n*** Installation cancelled ***\n')
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sys.exit(1)
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