problems1.py

#!/usr/bin/env python3

# 1) Write a function which takes two strings strA and strB and returns them joined with a space
#    "hello", "world" -> "hello world"
def solution1(strA, strB):

# 2) Write a function which adds 2 integers A and B and returns the result
#    a, b -> a + b
def solution2(A, B):

# 3) Write a function which returns the integers 0 -> 9 (inclusive) as an array
#    -> [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
def solution3():

# 4) Write a function which returns the even integers between 0 -> 9 as an array
#    -> [0, 2, 4, 6, 8]
def solution4():

# 5) Write a function which inverts the capitalization of the string A and returns the result
#    (You cannot use swapcase())
#    "ThiS IS a STrinG" -> "tHIs is A stRINg"
def solution5(A):

# 6) Write a function which returns a string containing only words from another string over 4 letters long
#    The returned string should have words delimited by spaces. Don't leave spaces at the beginning or end of the returned string
#    "this is a really complicated string" -> "really complicated string"

def solution6(s):

# 7) Write a function which returns an array containing integers in the Fibonacci sequence up to 377
#    https://en.wikipedia.org/wiki/Fibonacci#Fibonacci_sequence 
#	1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, 377
def solution7():

# 8) Write a function which returns an array containing the first 10 prime numbers
#    (Zero and one are not prime numbers)
# 2,3,5,7,11,13,17,19,23,29
def solution8():

# 9) Write a function which takes a string, which is an arithmetic expression containing only floats and one of +,-,/,*, and returns the result of the expression as a string
#    Normal rules for operator precedence do not apply, just use the operators in the sequence you read them
#    "50.0+60.0/10.0*20.0" -> "220.0"
def solution9(expr):

# IGNORE EVERYTHING BELOW THIS LINE

def solution1_harness():
	ret = solution1("hello", "world")
	assert ret == "hello world"
	return ret
def solution2_harness():
	ret = solution2(1, 99)
	assert ret == 100
	return ret
def solution3_harness():
	ret = solution3()
	assert ret == [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
	return ret
def solution4_harness():
	ret = solution4()
	assert ret == [0, 2, 4, 6, 8]
	return ret
def solution5_harness():
	ret = solution5("ThiS IS a STrinG")
	assert ret == "tHIs is A stRINg"
	return ret
def solution6_harness():
	ret = solution6("this is a really complicated string")
	assert ret == "really complicated string"
	return ret
def solution7_harness():
	ret = solution7()
	assert ret == [1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, 377]
	return ret
def solution8_harness():
	ret = solution8()
	assert ret == [2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71]
	return ret
def solution9_harness():
	ret = solution9("50.0+60.0/10.0*20.0")
	assert ret == "220.0"
	return ret

import sys
import inspect
import traceback

def menu():
	solution = raw_input("which solution do you want to run? (1 to 9) (q to quit) ")
	if solution == "q":
		return True
	if solution.isdigit():
		harness_fn = globals()["solution" + str(solution) + "_harness"]
		raw_fn = globals()["solution" + str(solution)]
		print("")
		print(inspect.getsource(raw_fn))
		if harness_fn:
			try:
				ret = harness_fn()
				if ret:
					print(ret)
				print("Congratulations, You Go girl!")
			except:
				_, _, tb = sys.exc_info()
				traceback.print_tb(tb)
				print("")
				print("Solution or harness is wrong! Keep trying, you can do it!")
			print("")
	return False

if __name__ == "__main__":
	while not menu():
		pass