l = ['h','e','l','l','o']

print (l.index('l'))
print (l.index('l', 2))
print (l.index('l', 3))
print (l.index('l', 2, 3))
print (l.index('l', 3, 4))
print (l.index('l', 2, -1))
print (l.index('l', 2, -2))
print (l.index('l', 3, -1))

try:
    print (l.index('l', 4))
except ValueError as e:
    print (repr(e))

try:
    print (l.index('l', -1))
except ValueError as e:
    print (repr(e))

try:
    print (l.index('l', 2, 2))
except ValueError as e:
    print (repr(e))

try:
    print (l.index('l', 3, 2))
except ValueError as e:
    print (repr(e))

try:
    print (l.index('l', 3, -2))
except ValueError as e:
    print (repr(e))

try:
    print (l.index('l', 3, 0))
except ValueError as e:
    print (repr(e))

try:
    print (l.index('l', 4.3))
except TypeError as e:
    print (repr(e))

try:
    print (l.index('l', 3, 0.6))
except TypeError as e:
    print (repr(e))