annotate 2.00/problem.py @ 31:fe1463e7e24d

Clean up try-except clauses More try-except-else goodness (with the stress on else). Bug fix: compat.py now creates zip_longest in Python 2.5 instead of raising an exception.
author Oleg Oshmyan <chortos@inbox.lv>
date Thu, 25 Nov 2010 00:03:29 +0000
parents 5bbb68833868
children 2b459f9743b4
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1 #! /usr/bin/env python
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2 # Copyright (c) 2010 Chortos-2 <chortos@inbox.lv>
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3
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4 from __future__ import division, with_statement
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5
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6 try:
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7 from compat import *
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8 import config, testcases
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9 except ImportError:
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10 import __main__
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11 __main__.import_error(sys.exc_info()[1])
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12 else:
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13 from __main__ import clock, options
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14
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15 import os, re, sys
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16
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17 try:
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18 import signal
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19 except ImportError:
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20 signalnames = ()
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21 else:
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22 # Construct a cache of all signal names available on the current
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23 # platform. Prefer names from the UNIX standards over other versions.
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24 unixnames = frozenset(('HUP', 'INT', 'QUIT', 'ILL', 'ABRT', 'FPE', 'KILL', 'SEGV', 'PIPE', 'ALRM', 'TERM', 'USR1', 'USR2', 'CHLD', 'CONT', 'STOP', 'TSTP', 'TTIN', 'TTOU', 'BUS', 'POLL', 'PROF', 'SYS', 'TRAP', 'URG', 'VTALRM', 'XCPU', 'XFSZ'))
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25 signalnames = {}
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26 for name in dir(signal):
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27 if re.match('SIG[A-Z]+$', name):
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28 value = signal.__dict__[name]
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29 if isinstance(value, int) and (value not in signalnames or name[3:] in unixnames):
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30 signalnames[value] = name
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31 del unixnames
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32
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33 __all__ = 'Problem',
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34
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35 def strerror(e):
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36 s = getattr(e, 'strerror')
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37 if not s: s = str(e)
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38 return ' (%s%s)' % (s[0].lower(), s[1:]) if s else ''
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39
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40 class Cache(object):
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41 def __init__(self, mydict):
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42 self.__dict__ = mydict
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43
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44 class Problem(object):
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45 __slots__ = 'name', 'config', 'cache', 'testcases'
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46
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47 def __init__(prob, name):
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48 if not isinstance(name, basestring):
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49 # This shouldn't happen, of course
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50 raise TypeError('Problem() argument 1 must be string, not ' + type(name).__name__)
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51 prob.name = name
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52 prob.config = config.load_problem(name)
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53 if not getattr(prob.config, 'kind', None): prob.config.kind = 'batch'
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54 prob.cache = Cache({'padoutput': 0, 'usegroups': False})
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55 prob.testcases = testcases.load_problem(prob)
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56
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57 # TODO
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58 def build(prob):
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59 raise NotImplementedError
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60
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61 def test(prob):
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62 case = None
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63 try:
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64 real = max = ntotal = nvalued = ncorrect = ncorrectvalued = 0
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65 for case in prob.testcases:
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66 ntotal += 1
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67 max += case.points
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68 if case.points: nvalued += 1
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69 granted = 0
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70 id = str(case.id)
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71 if case.isdummy:
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72 id = 'sample ' + id
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73 say('%*s: ' % (prob.cache.padoutput, id), end='')
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74 sys.stdout.flush()
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75 try:
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76 granted = case(lambda: (say('%7.3f%s s, ' % (case.time_stopped - case.time_started, case.time_limit_string), end=''), sys.stdout.flush()))
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77 except testcases.CanceledByUser:
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78 verdict = 'canceled by the user'
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79 except testcases.TimeLimitExceeded:
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80 verdict = 'time limit exceeded'
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81 except testcases.WrongAnswer:
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82 e = sys.exc_info()[1]
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83 if e.comment:
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84 verdict = 'wrong answer (%s)' % e.comment
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85 else:
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86 verdict = 'wrong answer'
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87 except testcases.NonZeroExitCode:
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88 e = sys.exc_info()[1]
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89 if e.exitcode < 0:
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90 if sys.platform == 'win32':
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91 verdict = 'terminated with error 0x%X' % (e.exitcode + 0x100000000)
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92 elif -e.exitcode in signalnames:
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93 verdict = 'terminated by signal %d (%s)' % (-e.exitcode, signalnames[-e.exitcode])
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94 else:
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95 verdict = 'terminated by signal %d' % -e.exitcode
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96 else:
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97 verdict = 'non-zero return code %d' % e.exitcode
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98 except testcases.CannotStartTestee:
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99 verdict = 'cannot launch the program to test%s' % strerror(sys.exc_info()[1].upstream)
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100 except testcases.CannotStartValidator:
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101 verdict = 'cannot launch the validator%s' % strerror(sys.exc_info()[1].upstream)
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102 except testcases.CannotReadOutputFile:
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103 verdict = 'cannot read the output file%s' % strerror(sys.exc_info()[1].upstream)
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104 except testcases.CannotReadInputFile:
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105 verdict = 'cannot read the input file%s' % strerror(sys.exc_info()[1].upstream)
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106 except testcases.CannotReadAnswerFile:
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107 verdict = 'cannot read the reference output file%s' % strerror(sys.exc_info()[1].upstream)
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108 except testcases.TestCaseNotPassed:
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109 verdict = 'unspecified reason [this may be a bug in test.py]%s' % strerror(sys.exc_info()[1])
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110 #except Exception:
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111 # verdict = 'unknown error [this may be a bug in test.py]%s' % strerror(sys.exc_info()[1])
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112 else:
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113 if hasattr(granted, '__iter__'):
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114 granted, comment = granted
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115 if comment:
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116 comment = ' (%s)' % comment
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117 else:
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118 comment = ''
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119 if granted >= 1:
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120 ncorrect += 1
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121 if case.points: ncorrectvalued += 1
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122 verdict = 'OK' + comment
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123 elif not granted:
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124 verdict = 'wrong answer' + comment
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125 else:
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126 verdict = 'partly correct' + comment
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127 granted *= case.points
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128 say('%g/%g, %s' % (granted, case.points, verdict))
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129 real += granted
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130 weighted = real * prob.config.taskweight / max if max else 0
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131 if nvalued != ntotal:
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132 say('Problem total: %d/%d tests (%d/%d valued); %g/%g points; weighted score: %g/%g' % (ncorrect, ntotal, ncorrectvalued, nvalued, real, max, weighted, prob.config.taskweight))
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133 else:
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134 say('Problem total: %d/%d tests; %g/%g points; weighted score: %g/%g' % (ncorrect, ntotal, real, max, weighted, prob.config.taskweight))
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135 return weighted, prob.config.taskweight
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136 finally:
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137 if options.erase and (not prob.config.stdio or case and case.validator):
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138 for var in 'in', 'out':
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139 name = getattr(prob.config, var + 'name')
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140 if name:
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141 try:
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parents: 21
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142 os.remove(name)
f07b7a431ea6 Further 2.00 work
Oleg Oshmyan <chortos@inbox.lv>
parents: 21
diff changeset
143 except Exception:
f07b7a431ea6 Further 2.00 work
Oleg Oshmyan <chortos@inbox.lv>
parents: 21
diff changeset
144 pass
f07b7a431ea6 Further 2.00 work
Oleg Oshmyan <chortos@inbox.lv>
parents: 21
diff changeset
145 if case.validator and not callable(case.validator):
f07b7a431ea6 Further 2.00 work
Oleg Oshmyan <chortos@inbox.lv>
parents: 21
diff changeset
146 if prob.config.ansname:
f07b7a431ea6 Further 2.00 work
Oleg Oshmyan <chortos@inbox.lv>
parents: 21
diff changeset
147 try:
f07b7a431ea6 Further 2.00 work
Oleg Oshmyan <chortos@inbox.lv>
parents: 21
diff changeset
148 os.remove(prob.config.ansname)
f07b7a431ea6 Further 2.00 work
Oleg Oshmyan <chortos@inbox.lv>
parents: 21
diff changeset
149 except Exception:
f07b7a431ea6 Further 2.00 work
Oleg Oshmyan <chortos@inbox.lv>
parents: 21
diff changeset
150 pass