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finished "your first python program", wrote synchronized highlighting script for callouts within a [pre], moved scripts to common .js file

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Mark Pilgrim
2009-02-05 00:55:24 -05:00
parent 8441b2f82c
commit de5be3ca0a
7 changed files with 1624 additions and 1625 deletions
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porting-code-to-python-3-with-2to3.html
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@@ -10,10 +10,11 @@ h1:before{counter-increment:h1;content:"Appendix A. "}
h2:before{counter-increment:h2;content:"A." counter(h2) ". "}
h3:before{counter-increment:h3;content:"A." counter(h2) "." counter(h3) ". "}
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<p class="skip"><a href="#divingin">skip to main content</a>
<form action="http://www.google.com/cse" id="search"><div><input type="hidden" name="cx" value="014021643941856155761:l5eihuescdw"><input type="hidden" name="ie" value="UTF-8">&nbsp;<input name="q" size="31">&nbsp;<input type="submit" name="sa" value="Search"></div><p>You are here: <a href="index.html">Dive Into Python 3</a> <span>&#8227;</span> <b>Appendix A</b></form>
<form action="http://www.google.com/cse" id="search"><div><input type="hidden" name="cx" value="014021643941856155761:l5eihuescdw"><input type="hidden" name="ie" value="UTF-8">&nbsp;<input name="q" size="31">&nbsp;<input type="submit" name="sa" value="Search"></div><p>You are here: <a href="index.html">Dive Into Python 3</a> <span>&#8227;</span> <b>Appendix A</b></p></form>
<h1>Porting code to Python 3 with <code>2to3</code></h1>
<blockquote class="q">
<p><span>&#x275D;</span> Life is pleasant. Death is peaceful. It&#8217;s the transition that&#8217;s troublesome. <span>&#x275E;</span><br>&mdash; Isaac Asimov (attributed)
@@ -144,8 +145,8 @@ h3:before{counter-increment:h3;content:"A." counter(h2) "." counter(h3) ". "}
</table>
<p id="skipcompareunicode">
<h2 id="long"><code>long</code> data type</h2>
<p>Python 2 had separate <code>int</code> and <code>long</code> types for non-floating-point numbers. An <code>int</code> could not be any larger than <a href="#renames"><code>sys.maxint</code></a>, which varied by platform. Longs were defined by appending an <code>L</code> to the end of the number, and they could be, well, longer than ints. In Python 3, there is only one integer type, called <code>int</code>, which mostly behaves like the <code>long</code> type in Python 2. Further reading: <a href="http://www.python.org/dev/peps/pep-0237/">PEP 237: Unifying Long Integers and Integers</a>.
<p>Since there are no longer two types, there is no need for special syntax to distinguish them.
<p>Python 2 had separate <code>int</code> and <code>long</code> types for non-floating-point numbers. An <code>int</code> could not be any larger than <a href="#renames"><code>sys.maxint</code></a>, which varied by platform. Longs were defined by appending an <code>L</code> to the end of the number, and they could be, well, longer than ints. In Python 3, there is only one integer type, called <code>int</code>, which mostly behaves like the <code>long</code> type in Python 2. Since there are no longer two types, there is no need for special syntax to distinguish them.
<p>Further reading: <a href="http://www.python.org/dev/peps/pep-0237/">PEP 237: Unifying Long Integers and Integers</a>.
<p class="skip"><a href="#skipcomparelong">skip over this table</a>
<table id="comparelong">
<tr><th>Notes</th>
@@ -1271,40 +1272,5 @@ do_stuff(a_list)</code></pre></td></tr>
<p id="skipcompareidioms">
<p>FIXME: once the rest of the book is written, this appendix should contain copious links back to any chapter or section that touches on these features.
<p class="c">&copy; 2001-4, 2009 <span>&#x2133;</span>ark Pilgrim, <a rel="license" href="http://creativecommons.org/licenses/by/3.0/">CC-BY-3.0</a>
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