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grading.py
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grading.py
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# grading.py
# ----------
# Licensing Information: You are free to use or extend these projects for
# educational purposes provided that (1) you do not distribute or publish
# solutions, (2) you retain this notice, and (3) you provide clear
# attribution to UC Berkeley, including a link to http://ai.berkeley.edu.
#
# Attribution Information: The Pacman AI projects were developed at UC Berkeley.
# The core projects and autograders were primarily created by John DeNero
# ([email protected]) and Dan Klein ([email protected]).
# Student side autograding was added by Brad Miller, Nick Hay, and
# Pieter Abbeel ([email protected]).
"Common code for autograders"
import cgi
import time
import sys
import json
import traceback
import pdb
from collections import defaultdict
import util
class Grades:
"A data structure for project grades, along with formatting code to display them"
def __init__(self, projectName, questionsAndMaxesList,
gsOutput=False, edxOutput=False, muteOutput=False):
"""
Defines the grading scheme for a project
projectName: project name
questionsAndMaxesDict: a list of (question name, max points per question)
"""
self.questions = [el[0] for el in questionsAndMaxesList]
self.maxes = dict(questionsAndMaxesList)
self.points = Counter()
self.messages = dict([(q, []) for q in self.questions])
self.project = projectName
self.start = time.localtime()[1:6]
self.sane = True # Sanity checks
self.currentQuestion = None # Which question we're grading
self.edxOutput = edxOutput
self.gsOutput = gsOutput # GradeScope output
self.mute = muteOutput
self.prereqs = defaultdict(set)
#print 'Autograder transcript for %s' % self.project
print 'Starting on %d-%d at %d:%02d:%02d' % self.start
def addPrereq(self, question, prereq):
self.prereqs[question].add(prereq)
def grade(self, gradingModule, exceptionMap = {}, bonusPic = False):
"""
Grades each question
gradingModule: the module with all the grading functions (pass in with sys.modules[__name__])
"""
completedQuestions = set([])
for q in self.questions:
print '\nQuestion %s' % q
print '=' * (9 + len(q))
print
self.currentQuestion = q
incompleted = self.prereqs[q].difference(completedQuestions)
if len(incompleted) > 0:
prereq = incompleted.pop()
print \
"""*** NOTE: Make sure to complete Question %s before working on Question %s,
*** because Question %s builds upon your answer for Question %s.
""" % (prereq, q, q, prereq)
continue
if self.mute: util.mutePrint()
try:
util.TimeoutFunction(getattr(gradingModule, q),1800)(self) # Call the question's function
#TimeoutFunction(getattr(gradingModule, q),1200)(self) # Call the question's function
except Exception, inst:
self.addExceptionMessage(q, inst, traceback)
self.addErrorHints(exceptionMap, inst, q[1])
except:
self.fail('FAIL: Terminated with a string exception.')
finally:
if self.mute: util.unmutePrint()
if self.points[q] >= self.maxes[q]:
completedQuestions.add(q)
print '\n### Question %s: %d/%d ###\n' % (q, self.points[q], self.maxes[q])
print '\nFinished at %d:%02d:%02d' % time.localtime()[3:6]
print "\nProvisional grades\n=================="
for q in self.questions:
print 'Question %s: %d/%d' % (q, self.points[q], self.maxes[q])
print '------------------'
print 'Total: %d/%d' % (self.points.totalCount(), sum(self.maxes.values()))
if bonusPic and self.points.totalCount() == 25:
print """
ALL HAIL GRANDPAC.
LONG LIVE THE GHOSTBUSTING KING.
--- ---- ---
| \ / + \ / |
| + \--/ \--/ + |
| + + |
| + + + |
@@@@@@@@@@@@@@@@@@@@@@@@@@
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
\ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
\ / @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
V \ @@@@@@@@@@@@@@@@@@@@@@@@@@@@
\ / @@@@@@@@@@@@@@@@@@@@@@@@@@
V @@@@@@@@@@@@@@@@@@@@@@@@
@@@@@@@@@@@@@@@@@@@@@@
/\ @@@@@@@@@@@@@@@@@@@@@@
/ \ @@@@@@@@@@@@@@@@@@@@@@@@@
/\ / @@@@@@@@@@@@@@@@@@@@@@@@@@@
/ \ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
/ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@@@@@@@@@@@@@@@@@@@@@@@@@@
@@@@@@@@@@@@@@@@@@
"""
print """
Your grades are NOT yet registered. To register your grades, make sure
to follow your instructor's guidelines to receive credit on your project.
"""
if self.edxOutput:
self.produceOutput()
if self.gsOutput:
self.produceGradeScopeOutput()
def addExceptionMessage(self, q, inst, traceback):
"""
Method to format the exception message, this is more complicated because
we need to cgi.escape the traceback but wrap the exception in a <pre> tag
"""
self.fail('FAIL: Exception raised: %s' % inst)
self.addMessage('')
for line in traceback.format_exc().split('\n'):
self.addMessage(line)
def addErrorHints(self, exceptionMap, errorInstance, questionNum):
typeOf = str(type(errorInstance))
questionName = 'q' + questionNum
errorHint = ''
# question specific error hints
if exceptionMap.get(questionName):
questionMap = exceptionMap.get(questionName)
if (questionMap.get(typeOf)):
errorHint = questionMap.get(typeOf)
# fall back to general error messages if a question specific
# one does not exist
if (exceptionMap.get(typeOf)):
errorHint = exceptionMap.get(typeOf)
# dont include the HTML if we have no error hint
if not errorHint:
return ''
for line in errorHint.split('\n'):
self.addMessage(line)
def produceGradeScopeOutput(self):
out_dct = {}
# total of entire submission
total_possible = sum(self.maxes.values())
total_score = sum(self.points.values())
out_dct['score'] = total_score
out_dct['max_score'] = total_possible
out_dct['output'] = "Total score (%d / %d)" % (total_score, total_possible)
# individual tests
tests_out = []
for name in self.questions:
test_out = {}
# test name
test_out['name'] = name
# test score
test_out['score'] = self.points[name]
test_out['max_score'] = self.maxes[name]
# others
is_correct = self.points[name] >= self.maxes[name]
test_out['output'] = " Question {num} ({points}/{max}) {correct}".format(
num=(name[1] if len(name) == 2 else name),
points=test_out['score'],
max=test_out['max_score'],
correct=('X' if not is_correct else ''),
)
test_out['tags'] = []
tests_out.append(test_out)
out_dct['tests'] = tests_out
# file output
with open('gradescope_response.json', 'w') as outfile:
json.dump(out_dct, outfile)
return
def produceOutput(self):
edxOutput = open('edx_response.html', 'w')
edxOutput.write("<div>")
# first sum
total_possible = sum(self.maxes.values())
total_score = sum(self.points.values())
checkOrX = '<span class="incorrect"/>'
if (total_score >= total_possible):
checkOrX = '<span class="correct"/>'
header = """
<h3>
Total score ({total_score} / {total_possible})
</h3>
""".format(total_score = total_score,
total_possible = total_possible,
checkOrX = checkOrX
)
edxOutput.write(header)
for q in self.questions:
if len(q) == 2:
name = q[1]
else:
name = q
checkOrX = '<span class="incorrect"/>'
if (self.points[q] >= self.maxes[q]):
checkOrX = '<span class="correct"/>'
#messages = '\n<br/>\n'.join(self.messages[q])
messages = "<pre>%s</pre>" % '\n'.join(self.messages[q])
output = """
<div class="test">
<section>
<div class="shortform">
Question {q} ({points}/{max}) {checkOrX}
</div>
<div class="longform">
{messages}
</div>
</section>
</div>
""".format(q = name,
max = self.maxes[q],
messages = messages,
checkOrX = checkOrX,
points = self.points[q]
)
# print "*** output for Question %s " % q[1]
# print output
edxOutput.write(output)
edxOutput.write("</div>")
edxOutput.close()
edxOutput = open('edx_grade', 'w')
edxOutput.write(str(self.points.totalCount()))
edxOutput.close()
def fail(self, message, raw=False):
"Sets sanity check bit to false and outputs a message"
self.sane = False
self.assignZeroCredit()
self.addMessage(message, raw)
def assignZeroCredit(self):
self.points[self.currentQuestion] = 0
def addPoints(self, amt):
self.points[self.currentQuestion] += amt
def deductPoints(self, amt):
self.points[self.currentQuestion] -= amt
def assignFullCredit(self, message="", raw=False):
self.points[self.currentQuestion] = self.maxes[self.currentQuestion]
if message != "":
self.addMessage(message, raw)
def addMessage(self, message, raw=False):
if not raw:
# We assume raw messages, formatted for HTML, are printed separately
if self.mute: util.unmutePrint()
print '*** ' + message
if self.mute: util.mutePrint()
message = cgi.escape(message)
self.messages[self.currentQuestion].append(message)
def addMessageToEmail(self, message):
print "WARNING**** addMessageToEmail is deprecated %s" % message
for line in message.split('\n'):
pass
#print '%%% ' + line + ' %%%'
#self.messages[self.currentQuestion].append(line)
class Counter(dict):
"""
Dict with default 0
"""
def __getitem__(self, idx):
try:
return dict.__getitem__(self, idx)
except KeyError:
return 0
def totalCount(self):
"""
Returns the sum of counts for all keys.
"""
return sum(self.values())