How To Resolve AttributeError: ‘NoneType’ Object Has No Attribute ‘split’ In Python

AttributeError: 'NoneType' object has no attribute 'split' in Python

To fix the AttributeError: ‘NoneType’ object has no attribute ‘split’ in Python, you need to know what the variable contains to call split(). Read the following article for more details.

What causes the AttributeError: ‘NoneType’ object has no attribute ‘split’ in Python?

The error happens when the split() attribute cannot be called in None

To fix this error from affecting the whole program, you should check for the occurrence of None in your variables. If None is alerted, replace it and call the split() attribute.

Example: 

myVar = None
print(myVar.split(','))

Output:

Traceback (most recent call last):
  File "/prog.py", line 2, in <module>
    print(myVar.split(','))
AttributeError: 'NoneType' object has no attribute 'split'

How to solve the error ?

Use the Authentication operator

You can use the Authentication operator to check if a variable can validly call split().

Example:

  • Declare a variable whose value is None.
  • Use the Authentication operator, if the variable contains the value None, execute the if statement otherwise, the variable can use the split() attribute because it does not contain the value None.
  • You can replace the ‘is’ operator with the ‘is not’ operator (substitute statements accordingly).
myVar = None

# Use the 'is' operator
if myVar is None:
    print('Variable is None')
else:
    print('Variable is not None')
    print(myVar.split(','))

Output:

Variable is None

Use the Relational Operator

You can use the relational operator ‘!=’ for error handling.

The ‘!=’ operator compares the values ​​of the arguments: if they are different, it returns True. If equal, returns False.

Example:

  • Declare a variable whose value is None.
  • Use the ‘!=’ operator, if the variable contains the value None split() function will be unusable.
  • You can replace the ‘!=’ operator with the ‘==’ operator (substitute statements accordingly).
myVar = None

# Use the relational operator '!='
if myVar != None:
    print('Variable is not None')
    print(myVar.split(','))
else:
     print('Variable is None')

Output:

Variable is None

Use the try/except block check for the occurrence of None

Example:

  • Declare a variable whose value is None.
  • The code between the first try-except clause is executed. If no exception occurs, only the try clause will run. The except clause will not run. If an AttributeError exception occurs, only the except clause runs.
myVar = None

try:
    print(myVar.split(','))

except AttributeError:
    print('Variable is None')

Output:

Variable is None

Summary

If you have any questions about the AttributeError: ‘NoneType’ object has no attribute ‘split’ in Python error in Python, please leave a comment below. I will answer your questions. Thank you for reading!

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