On 20.10.2015 10:44, ngangsia akumbo wrote:
def n():
34 * 2
def g():
4 + 2
Your n and g functions do not have an explicit return so, after doing
their calculations and throwing the result away, they return None.
def ng():
return n() + g()
ng()
Traceback (most recent call last):
File "<pyshell#14>", line 1, in <module>
ng()
File "<pyshell#13>", line 2, in ng
return n() + g()
TypeError: unsupported operand type(s) for +: 'NoneType' and 'NoneType'
The attempt in ng to add None to None then produce the exception you are
seeing.
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