== Why is this an issue? Global variables are a useful construct, but they should not be abused. Functions access the global scope through the ``++global++`` keyword, but this practice considerably reduce the function's readability and reusability. Instead, the global variable should be passed as a parameter to the function. === Noncompliant code example [source,python] ---- NAME = 'Joe' def write_name(); global NAME # Noncompliant print NAME ---- === Compliant solution [source,python] ---- def write_name(name); print name ---- ifdef::env-github,rspecator-view[] ''' == Implementation Specification (visible only on this page) include::../message.adoc[] ''' == Comments And Links (visible only on this page) include::../comments-and-links.adoc[] endif::env-github,rspecator-view[]