Lab 2!

graders/lab2.py

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+#!/usr/bin/env python
+
+import sys
+sys.path.append('/home/dotcloud/env/lib/python2.6/site-packages')
+from sandbox import Sandbox, SandboxConfig
+from os import path
+
+importname = sys.argv[1]
+if importname.endswith('.py'):
+	importname = importname[:len(importname)-3]
+else:
+	print >> sys.stderr, 'Filename did not end with .py for some reason...'
+	sys.exit(2)
+
+sys.path.insert(0, path.expanduser('~/submissions'))
+sys.dont_write_bytecode = True
+
+output = ''
+def run():
+	exec("import %s as submission" % importname)
+	global output
+	score = 0
+
+	list1 = [-9, 20, 501]
+	list2 = xrange(100)
+	if submission.total(list1) == sum(list1):
+		score += 1
+	else:
+		output += "Tried total(%s) and got %s\n" % (list1, submission.total(list1))
+	if submission.total(list2) == sum(list2):
+		score += 1
+	else:
+		output += "Tried total(%s) and got %s\n" % (list2, submission.total(list2))
+
+	onestring1 = submission.onestring()
+	onestring2 = submission.onestring()
+	if onestring1 == 1:
+		score += 1
+	else:
+		output += "First call to onestring() returned %s\n" % onestring1
+	if onestring2 == 'ring':
+		score += 1
+	else:
+		output += "Second call to onestring() returned %s\n" % onestring2
+	return score
+
+config = SandboxConfig()
+config.timeout = 5
+config.allowModule(importname, 'total', 'onestring')
+sandbox = Sandbox(config)
+score = sandbox.call(run)
+print score
+print >> sys.stderr, output

static/lab2.py

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+#!/usr/bin/env python
+
+# Normally, there won't be two assignments overlapping, but we're still testing
+# so whatever.
+
+# total should return the sum of the numbers passed in
+def total(numbers):
+	return numbers[0]
+
+# onestring should return 1 the first time it's called and 'ring' the second time
+def onestring():
+	return 1
+
+# Your code will be run in a sandbox, so print statements are not allowed in
+# the required functions. The below code gets executed when you run the python
+# file; this should aid you in debugging/testing.
+if __name__ == '__main__':
+	list1 = [1, 2, 3]
+	list2 = [-10, -10, -30]
+	print 'sum of list1:', total(list1)
+	print 'sum of list2:', total(list2)
+
+	print # blank line
+
+	if onestring() == 1:
+		print 'got 1 the first time!'
+	else:
+		print 'onestring didn\'t return 1 the first time :('
+	if onestring() == 'ring':
+		print "got 'ring' the second time!"
+	else:
+		print "onestring didn't print 'ring' the second time D:"