NameError: Name plot_cases_simple Is Not Defined [SOLVED]

NameError: Name plot_cases_simple Is Not Defined error is a generic name error. This plot cases simple is just a placeholder.

This can be the name of a function, a variable, or a Python module. In this article, we’ll show you how to fix this error by giving plot cases simple as a dummy name.

What is NameError: Name plot_cases_simple Is Not Defined?

In Python, the NameError happens when you try to use a variable, function, or module that doesn’t exist or wasn’t used in a valid way.

Some of The Common Mistakes That Cause This Error are:

Using a variable or function name that is yet to be defined.
Misspelling a variable/function name when calling the variable/function.
Using a Python module without importing the module, and so on.

How To Solve NameError: Name plot_cases_simple Is Not Defined?

In this section, you will learn how to fix the Python error “NameError: Name is Not Defined.” I’ve split this section into sub-sections to show the error above when using variables, functions, and modules.

Example 1 – Variable Name Is Not Defined in Python
Example 2 – Function Name Is Not Defined in Python
Example 3 – Using a Module Without Importing the Module Error in Python

Example 1: Variable Name Is Not Defined in Python

name = "Jude"

print(age)


# This will be the Output:

#NameError: name 'age' is not defined

In the code above, we set up a variable called “name,” but we tried to print “age,” which hasn’t been set up yet.

We got an error that says: NameError: name ‘age’ is not defined. This means that the age variable doesn’t exist.

Example 1 Solution:

We can fix this by making the variable, and then our code will run correctly. Here’s an example of code:

name = "Jude"
age = 26
print(age)


# This will be the Output:
# 26

Example 2: Function Name Is Not Defined in Python

def sayHi():
    print("Hi IT SOURCECODE!")
    
sayHello()
# NameError: name 'sayHello' is not defined

In the above example, we used sayHello() instead of sayHi() to call the function ().

We got this error: NameError: name’sayHello’ is not defined. It’s easy to miss spelling mistakes like this. Most of the time, the error message will help you fix this.

Example 2 Solution:

def sayHi():
    print("Hi IT SOURCECODE!")
    
sayHi()
# This will be the output:
# Hi IT SOURCECODE!

Example 3 : Using a Module Without Importing the Module Error in Python

x = 5.5

print(math.ceil(x))

# This will be the output:
# NameError: name 'math' is not defined

In the above example, we use the Python math.ceil method without importing the math module.

NameError: name’math’ is not defined was the error message that came up. This happened because the math keyword was not known to the interpreter.

In Python, we must first import the math module before we can use it or any other math method.

Example 3 Solution:

import math

x = 5.5

print(math.ceil(x))
# 6

The math module was brought in on the first line of code. When you now run the code above, you should get the number 6 back.

Summary

In this article we discussed on how to fix NameError: Name plot_cases_simple Is Not Defined, we provide a different example program on how to fix the error. I hope this tutorial can help you a lot and can solve your problem.

Recommendations

By the way if you encounter an error about importing libraries, I have here the list of articles made to solve your problem on how to fix error in libraries.

Inquiries

However, If you have any questions or suggestions about this tutorial NameError: Name plot_cases_simple Is Not Defined, Please feel to comment below, Thank You and God Bless!