Python3 NameError: name 'math' is not defined

In the Python programming language, the “NameError: name ‘math’ is not defined” error may occur. This article introduces how to handle and resolve this error.

Python 3.5.2 (default, Nov 12 2018, 13:43:14)
[GCC 5.4.0 20160609] on linux
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>>> math.pi
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
NameError: name 'math' is not defined

Solution

You need to import the module

from math import *

Python : name ‘math’ is not defined Error? - Stack Overflow