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Copy patheasyMath.py
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41 lines (36 loc) · 1.05 KB
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#!/usr/bin/env python
fromoperatorimportadd, sub
fromrandomimportrandint, choice
ops= {'+': add, '-': sub}
MAXTRIES=2
defdoprob():
op=choice('+-')
nums= [ randint(1,10) foriinrange(2) ]
nums.sort(reverse=True)
ans=ops[op](*nums)
pr='%d %s %s = '% (nums[0], op, nums[1])
oops=0
whileTrue:
try:
ifint(raw_input(pr)) ==ans:
print'correct'
break
ifoops==MAXTRIES:
print'sorry... the answer is\n%s%d'% (pr, ans)
else:
print'incorrect... try again'
oops+=1
except (KeyboardInterrupt,
EOFError, ValueError):
print'invalid input... try again'
defmain():
whileTrue:
doprob()
try:
opt=raw_input('Again? [y] ').lower()
ifoptandopt[0] =='n':
break
except (KeyboardInterrupt, EOFError):
break
if__name__=='__main__':
main()