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<table width="100%" cellpadding=5 cellspacing=0 border=0 class="navtopbg"><tr><td><font size="1"><p class="navtitle"><a href="main.asp?cat=8" class="navtitle">Web Development</a> > <span class="nonavtitle">Python Developer's Handbook</span></p></font></td><td align="right" valign="top" nowrap><font size="1"><a href="main.asp?list" class="safnavoff">See All Titles</a></font></td></tr></table>
<blockquote><p><font size=3><a href="index.html" class=ATitle>Python Developer's Handbook</a></font></p>
[<A HREF="rindex1.html">Symbol</a>][<A HREF="rindex1.html#Ai">A</a>][<A HREF="rindex2.html">B</a>][<A HREF="rindex3.html">C</a>][<A HREF="rindex4.html">D</a>][<A HREF="rindex5.html">E</a>][<A HREF="rindex6.html">F</a>][<A HREF="rindex7.html">G</a>][<A HREF="rindex8.html">H</a>][<A HREF="rindex9.html">I</a>][<A HREF="rindex10.html">J</a>][<A HREF="rindex11.html">K</a>][<A HREF="rindex12.html">L</a>][<A HREF="rindex13.html">M</a>][<A HREF="rindex14.html">N</a>][<A HREF="rindex14.html">Symbol</a>][<A HREF="rindex15.html">O</a>][<A HREF="rindex16.html">P</a>][<A HREF="rindex17.html">Q</a>][<A HREF="rindex18.html">R</a>][<A HREF="rindex19.html">S</a>][<A HREF="rindex20.html">T</a>][<A HREF="rindex21.html">U</a>][<A HREF="rindex22.html">V</a>][<A HREF="rindex23.html">W</a>][<A HREF="rindex24.html">X</a>][<A HREF="rindex25.html">Y</a>][<A HREF="121.html#idx1073743750">N element</a></FONT></DL>
<DL> <FONT size=2><a href="141.html#idx1073744881">n value</a></FONT></DL>
<DL> <FONT size=2><a href="235.html#idx1073750369">n(ext) command</a></FONT></DL>
<DL> <FONT size=2><a href="184.html#idx1073746762">name attribute</a></FONT></DL>
<DL> <FONT size=2><a href="111.html#idx1073743486">name mangling</a></FONT></DL>
<DL> <FONT size=2><a href="15.html#idx1073741878">name resolution</a></FONT></DL>
<DL> <FONT size=2><a href="184.html#idx1073746723">name/value pairs</a></FONT></DL>
<DL> <FONT size=2><a href="32.html#idx1073742501">named arguments</a></FONT></DL>
<DL> <FONT size=2><a href="99.html#idx1073743237">NameError class</a></FONT></DL>
<DL>names<DL>color<DL> <FONT size=2><a href="212.html#idx1073748626">Macintosh</a></FONT>
<FONT size=2>, <a href="212.html#idx1073748629">2nd</a>
</FONT>
</DL></DL>
<DL>files<DL> <FONT size=2><a href="184.html#idx1073746704">case sensitivity of</a></FONT>
</DL></DL>
<DL> <FONT size=2><a href="185.html#idx1073747008">form</a></FONT></DL>
</DL>
<DL> <FONT size=2><a href="212.html#idx1073748661">names() function</a></FONT></DL>
<DL> <FONT size=2><a href="32.html#idx1073742480">2nd</a>
</FONT></DL>
<DL>namespaces<DL> <FONT size=2><a href="111.html#idx1073743495">class</a></FONT></DL>
<DL> <FONT size=2><a href="32.html#idx1073742479">dynamic</a></FONT></DL>
<DL> <FONT size=2><a href="190.html#idx1073747195">Extensible Markup Language (XML)</a></FONT></DL>
<DL>global<DL> <FONT size=2><a href="33.html#idx1073742524">importing and creating, modules</a></FONT>
</DL></DL>
<DL> <FONT size=2><a href="247.html#idx1073750681">JPython</a></FONT></DL>
<DL> <FONT size=2><a href="33.html#idx1073742541">string</a></FONT></DL>
</DL>
<DL>naming<DL> <FONT size=2><a href="26.html#idx1073742146">identifiers</a></FONT></DL>
</DL>
<DL> <FONT size=2><a href="13.html#idx1073741829">NASA</a></FONT></DL>
<DL> <FONT size=2><a href="236.html#idx1073750430">ncalls column heading</a></FONT></DL>
<DL> <FONT size=2><a href="232.html#idx1073750089">ndiff program</a></FONT></DL>
<DL>nested loops<DL> <FONT size=2><a href="222.html#idx1073749473">construction methods</a></FONT></DL>
</DL>
<DL> <FONT size=2><a href="169.html#idx1073746122">Network News Transfer Protocol (NNTP)</a></FONT></DL>
<DL> <FONT size=2><a href="170.html#idx1073746138">2nd</a>
</FONT><DL> <FONT size=2><a href="166.html#idx1073746014">accessing uniform resource locators (URLs)</a></FONT></DL>
<DL> <FONT size=2><a href="164.html#idx1073745681">addresses</a></FONT></DL>
<DL> <FONT size=2><a href="169.html#idx1073746134">newsgroups</a></FONT></DL>
<DL> <FONT size=2><a href="164.html#idx1073745636">Open Systems Interconnection (OSI) model</a></FONT></DL>
<DL> <FONT size=2><a href="165.html#idx1073745837">2nd</a>
, <a href="167.html#idx1073746058">3rd</a>
, <a href="168.html#idx1073746069">4th</a>
</FONT></DL>
<DL> <FONT size=2><a href="164.html#idx1073745705">sockets</a></FONT></DL>
</DL>
<DL> <FONT size=2><a href="193.html#idx1073747697">new alignment(align) method</a></FONT></DL>
<DL> <FONT size=2><a href="224.html#idx1073749736">New Indent width option, File Editor</a></FONT></DL>
<DL> <FONT size=2><a href="224.html#idx1073749681">New window option, File Editor</a></FONT></DL>
<DL> <FONT size=2><a href="193.html#idx1073747699">new_font(font) method</a></FONT></DL>
<DL> <FONT size=2><a href="193.html#idx1073747701">new_margin(margin, level) method</a></FONT></DL>
<DL> <FONT size=2><a href="193.html#idx1073747703">new_spacing(spacing) method</a></FONT></DL>
<DL> <FONT size=2><a href="193.html#idx1073747705">new_styles(styles) method</a></FONT></DL>
<DL> <FONT size=2><a href="13.html#idx1073741830">news site, Python</a></FONT></DL>
<DL> <FONT size=2><a href="169.html#idx1073746135">newsgroups</a></FONT></DL>
<DL> <FONT size=2><a href="194.html#idx1073747839">next method</a></FONT></DL>
<DL> <FONT size=2><a href="146.html#idx1073745194">nextset() method</a></FONT></DL>
<DL> <FONT size=2><a href="232.html#idx1073750090">nm2def program</a></FONT></DL>
<DL> <FONT size=2><a href="169.html#idx1073746120">NNTP (Network News Transfer Protocol)</a></FONT></DL>
<DL> <FONT size=2><a href="169.html#idx1073746118">nntplib module</a></FONT></DL>
<DL> <FONT size=2><a href="184.html#idx1073746707">nobody user</a></FONT></DL>
<DL> <FONT size=2><a href="193.html#idx1073747571">nofill flag</a></FONT></DL>
<DL> <FONT size=2><a href="27.html#idx1073742163">None data types</a></FONT></DL>
<DL> <FONT size=2><a href="264.html#idx1073751083">none objects</a></FONT></DL>
<DL> <FONT size=2><a href="105.html#idx1073743270">NoneType object type</a></FONT></DL>
<DL> <FONT size=2><a href="28.html#idx1073742269">not in operator</a></FONT></DL>
<DL> <FONT size=2><a href="273.html#idx1073751404">Nowak, Hans</a></FONT></DL>
<DL> <FONT size=2><a href="125.html#idx1073744235">2nd</a>
</FONT></DL>
<DL>null value<DL> <FONT size=2><a href="27.html#idx1073742161">assigning to variables</a></FONT></DL>
</DL>
<DL>NULL value<DL> <FONT size=2><a href="121.html#idx1073743768">checking errors, extension modules</a></FONT></DL>
<DL> <FONT size=2><a href="121.html#idx1073743771">returning without raising exceptions</a></FONT></DL>
</DL>
<DL>NULL values<DL> <FONT size=2><a href="146.html#idx1073745225">Structured Query Language (SQL)</a></FONT></DL>
</DL>
<DL> <FONT size=2><a href="193.html#idx1073747682">NullFormatter([writer]) class</a></FONT></DL>
<DL> <FONT size=2><a href="193.html#idx1073747729">NullWriter() class</a></FONT></DL>
<DL> <FONT size=2><a href="211.html#idx1073748548">num attribute</a></FONT></DL>
<DL> <FONT size=2><a href="263.html#idx1073751026">2nd</a>
</FONT></DL>
<DL>numbers<DL>floating points<DL> <FONT size=2><a href="192.html#idx1073747328">packing methods</a></FONT>
</DL></DL>
<DL> <FONT size=2><a href="133.html#idx1073744628">handling</a></FONT></DL>
<DL> <FONT size=2><a href="164.html#idx1073745678">IP addresses</a></FONT></DL>
<DL> <FONT size=2><a href="34.html#idx1073742607">replacing with asterisks (*)</a></FONT></DL>
<DL> <FONT size=2><a href="26.html#idx1073742148">starting identifiers with</a></FONT></DL>
</DL>
<DL> <FONT size=2><a href="154.html#idx1073745484">Numeracy + Computer Literacy</a></FONT></DL>
<DL> <FONT size=2><a href="264.html#idx1073751179">2nd</a>
</FONT></DL>
<DL> <FONT size=2><a href="154.html#idx1073745431">Numeric.py module</a></FONT></DL>
<DL> <FONT size=2><a href="15.html#idx1073741888">Numerical Extensions to Python (NumPy)</a></FONT></DL>
<DL> <FONT size=2><a href="154.html#idx1073745445">2nd</a>
</FONT></DL>
<DL> <FONT size=2><a href="154.html#idx1073745426">NumPy (Numerical Python)</a></FONT></DL>
<DL><FONT size=2><BR> See : Numerical Extensions to Python</font>NumPy⌨️ 快捷键说明
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