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<HTML><HEAD><TITLE>Static Methods</TITLE></HEAD><BODY bgcolor="#FFFFFF"> <a href="../index.html" target="_top"><img src="../icons/usins.gif" alt="Logo" align=right></a><b>Data Structures and Algorithms with Object-Oriented Design Patterns in Python</b><br><A NAME="tex2html8010" HREF="page598.html"><IMG WIDTH=37 HEIGHT=24 ALIGN=BOTTOM ALT="next" SRC="../icons/next_motif.gif"></A> <A NAME="tex2html8008" HREF="page591.html"><IMG WIDTH=26 HEIGHT=24 ALIGN=BOTTOM ALT="up" SRC="../icons/up_motif.gif"></A> <A NAME="tex2html8004" HREF="page596.html"><IMG WIDTH=63 HEIGHT=24 ALIGN=BOTTOM ALT="previous" SRC="../icons/previous_motif.gif"></A>  <A NAME="tex2html8012" HREF="page611.html"><IMG WIDTH=43 HEIGHT=24 ALIGN=BOTTOM ALT="index" SRC="../icons/index_motif.gif"></A> <BR><HR><H2><A NAME="SECTION0017460000000000000000">Static Methods</A></H2><P>A <em>static method</em><A NAME=57114>&#160;</A><A NAME=57115>&#160;</A>is a class attribute that does not require its first argument to bean instance of the class.(Normal methods require the first argument, <tt>self</tt>,to be a class instance).<P><P><A NAME="57515">&#160;</A><A NAME="progcomplexe">&#160;</A> <IMG WIDTH=575 HEIGHT=371 ALIGN=BOTTOM ALT="program57117" SRC="img2489.gif"  ><BR><STRONG>Program:</STRONG> <tt>Complex</tt> class <tt>__main__</tt> method.<BR><P><P>Program&nbsp;<A HREF="page597.html#progcomplexe"><IMG  ALIGN=BOTTOM ALT="gif" SRC="../icons/cross_ref_motif.gif"></A> defines a <tt>main</tt> method for the <tt>Complex</tt> class.This method is a simple test program for the <tt>Complex</tt> class.For example,this static method can be invoked like this:<PRE>import sysif __name__ == &quot;__main__&quot;:    sys.exit(Complex.main(*sys.argv))</PRE><P><HR><A NAME="tex2html8010" HREF="page598.html"><IMG WIDTH=37 HEIGHT=24 ALIGN=BOTTOM ALT="next" SRC="../icons/next_motif.gif"></A> <A NAME="tex2html8008" HREF="page591.html"><IMG WIDTH=26 HEIGHT=24 ALIGN=BOTTOM ALT="up" SRC="../icons/up_motif.gif"></A> <A NAME="tex2html8004" HREF="page596.html"><IMG WIDTH=63 HEIGHT=24 ALIGN=BOTTOM ALT="previous" SRC="../icons/previous_motif.gif"></A>  <A NAME="tex2html8012" HREF="page611.html"><IMG WIDTH=43 HEIGHT=24 ALIGN=BOTTOM ALT="index" SRC="../icons/index_motif.gif"></A> <P><ADDRESS><img src="../icons/bruno.gif" alt="Bruno" align=right><a href="../copyright.html">Copyright &#169; 2003</a> by <a href="../signature.html">Bruno R. Preiss, P.Eng.</a>  All rights reserved.</ADDRESS></BODY></HTML>

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