Consider
the stack trace below. What is the problem?
File
"C:\Users\lyndo\.spyder-py3\foundations\errors.py", line 21, in
<module>
z = double()
File
"C:\Users\lyndo\.spyder-py3\foundations\errors.py", line 14, in
double
return xx
NameError:
name 'xx' is not defined

Question

Consider
the stack trace below. What is the problem?

File
"C:\Users\lyndo\.spyder-py3\foundations\errors.py", line 21, in
<module>

z = double()

File
"C:\Users\lyndo\.spyder-py3\foundations\errors.py", line 14, in
double

return xx

NameError:
name 'xx' is not defined

Accepted Answer

The  variable 'xx' does not exist in the local scope of the function

Answer

The variable 'xx' has an invalid name

Answer

The variable 'xx' has been used but not declared.

Answer

The variable 'xx' has been used but has an invalid value

Answer

The variable 'xx' is not passed as a parameter to the function

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