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This rule raises an issue when the inequality operator <> is used.
Why is this an issue?
The operators <> and != are equivalent. However, the <> operator is considered obsolete in
Python 2.7 and has been removed from Python 3. Therefore, it is recommended to use != instead.
Code examples
Noncompliant code example
return a <> b # Noncompliant: the operator "<>" is deprecated.

Compliant solution
return a != b

Resources
Documentation

   Python Documentation: Python 2.7 - Operators