What does TypeError: 'NoneType' object is not iterable mean? Example:
for row in data: # Gives TypeError!
print(row)
11 Answers
It means the value of data is None.
Explanation of error: 'NoneType' object is not iterable
In python2, NoneType is the type of None. In Python3 NoneType is the class of None, for example:
>>> print(type(None)) #Python2
<type 'NoneType'> #In Python2 the type of None is the 'NoneType' type.
>>> print(type(None)) #Python3
<class 'NoneType'> #In Python3, the type of None is the 'NoneType' class.
