OldOctalLiteral.qhelp

<!DOCTYPE qhelp PUBLIC
  "-//Semmle//qhelp//EN"
  "qhelp.dtd">
<qhelp>
<overview>
<p>
Octal literals starting with 0 are easily misread as a decimal,
particularly by those programmers who do not have a C or Java background.
</p>

<p>
The new literal syntax for non-decimal numbers is more distinct and is thus less likely to be misunderstood.
</p>

</overview>
<recommendation>

<p>
Use the 0oXXX form instead of the 0XXX form. Alternatively use binary or hexadecimal format if that would be clearer.
</p>

</recommendation>
<example>
<sample src="OldOctalLiteral.py" />

</example>
<references>


<li>Python Language Reference: <a href="http://docs.python.org/2/reference/lexical_analysis.html#integer-and-long-integer-literals">Integer Literals</a>.</li>
<li>Python PEP 3127: <a href="http://www.python.org/dev/peps/pep-3127/">Integer Literal Support and Syntax</a>.</li>


</references>
</qhelp>