mirror of
https://github.com/kennethreitz/dive-into-python3.git
synced 2026-06-05 23:10:17 +00:00
Mark Pilgrim
454 lines
7.7 KiB
Plaintext
454 lines
7.7 KiB
Plaintext
<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="utf-8">
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<title>Porting code to Python 3 with 2to3 - Dive into Python 3</title>
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<link rel="stylesheet" type="text/css" href="dip3.css">
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</head>
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<body>
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<h1>Porting code to Python 3 with <code>2to3</code></h1>
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<ol class="toc">
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</ol>
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<section>
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<h2 id="ne">ne</h2>
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<p>FIXME intro</p>
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<table>
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<tr>
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<th>Python 2</th>
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<th>Python 3</th>
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</tr>
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<tr>
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<td><code>if x <> y:</code></td>
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<td><code>if x != y:</code></td>
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</tr>
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</table>
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</section>
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<section>
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<h2 id="has_key">has_key</h2>
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<p>FIXME intro</p>
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</section>
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<section>
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<h2 id="apply">apply</h2>
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<p>FIXME intro</p>
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</section>
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<section>
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<h2 id="intern">intern</h2>
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<p>FIXME intro</p>
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</section>
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<section>
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<h2 id="print">print</h2>
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<p>FIXME intro</p>
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</section>
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<section>
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<h2 id="exec">exec</h2>
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<p>FIXME intro</p>
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</section>
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<section>
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<h2 id="repr">repr</h2>
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<p>FIXME intro</p>
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</section>
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<section>
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<h2 id="except">except</h2>
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<p>FIXME intro</p>
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</section>
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<section>
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<h2 id="raise">raise</h2>
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<p>FIXME intro</p>
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</section>
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<section>
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<h2 id="throw">throw</h2>
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<p>FIXME intro</p>
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</section>
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<section>
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<h2 id="long">long</h2>
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<p>FIXME intro</p>
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</section>
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<section>
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<h2 id="dict">dict</h2>
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<p>FIXME intro</p>
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</section>
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<section>
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<h2 id="xrange">xrange</h2>
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<p>FIXME intro</p>
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</section>
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<section>
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<h2 id="raw_input">raw_input</h2>
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<p>FIXME intro</p>
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</section>
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<section>
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<h2 id="funcattrs">funcattrs</h2>
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<p>FIXME intro</p>
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</section>
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<section>
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<h2 id="xreadlines">xreadlines</h2>
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<p>FIXME intro</p>
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</section>
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<section>
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<h2 id="imports">imports</h2>
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<p>FIXME intro</p>
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</section>
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<section>
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<h2 id="imports2">imports2</h2>
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<p>FIXME intro</p>
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</section>
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1533: fixer = None
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<section>
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<h2 id="urllib">urllib</h2>
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<p>FIXME intro</p>
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</section>
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<section>
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<h2 id="input">input</h2>
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<p>FIXME intro</p>
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</section>
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<section>
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<h2 id="tuple_params">tuple_params</h2>
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<p>FIXME intro</p>
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</section>
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<section>
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<h2 id="methodattrs">methodattrs</h2>
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<p>FIXME intro</p>
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</section>
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<section>
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<h2 id="next">next</h2>
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<p>FIXME intro</p>
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</section>
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<section>
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<h2 id="nonzero">nonzero</h2>
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<p>FIXME intro</p>
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</section>
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<section>
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<h2 id="numliterals">numliterals</h2>
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<p>FIXME intro</p>
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</section>
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<section>
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<h2 id="renames">renames</h2>
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<p>FIXME intro</p>
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</section>
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<section>
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<h2 id="unicode">unicode</h2>
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<p>FIXME intro</p>
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</section>
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<section>
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<h2 id="callable">callable</h2>
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<p>FIXME intro</p>
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</section>
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<section>
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<h2 id="filter">filter</h2>
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<p>FIXME intro</p>
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</section>
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<section>
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<h2 id="map">map</h2>
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<p>FIXME intro</p>
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</section>
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<section>
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<h2 id="zip">zip</h2>
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<p>FIXME intro</p>
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</section>
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<section>
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<h2 id="standarderror">standarderror</h2>
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<p>FIXME intro</p>
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</section>
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<section>
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<h2 id="types">types</h2>
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<p>FIXME intro</p>
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</section>
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<section>
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<h2 id="idioms">idioms</h2>
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<p>FIXME intro</p>
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</section>
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<section>
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<h2 id="basestring">basestring</h2>
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<p>FIXME intro</p>
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</section>
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<section>
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<h2 id="buffer">buffer</h2>
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<p>FIXME intro</p>
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</section>
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<section>
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<h2 id="future">future</h2>
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<p>FIXME intro</p>
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</section>
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<section>
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<h2 id="itertools">itertools</h2>
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<p>FIXME intro</p>
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</section>
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3256: fixer = 'itertools_imports'
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<section>
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<h2 id="import">import</h2>
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<p>FIXME intro</p>
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</section>
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<section>
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<h2 id="set_literal">set_literal</h2>
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<p>FIXME intro</p>
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</section>
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<section>
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<h2 id="sys_exc">sys_exc</h2>
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<p>FIXME intro</p>
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</section>
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<section>
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<h2 id="paren">paren</h2>
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<p>FIXME intro</p>
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</section>
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3657: fixer = 'metaclass'
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3822: fixer = 'getcwdu'
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</ol>
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# Lib/lib2to3/tests/test_fixers.py
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- <>
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- has_key
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- apply()
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- intern()
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- print
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- exec()
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- repr()
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- except
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- raise
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- throw
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- long()
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- dict()
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- xrange()
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- raw_input()
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- input()
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- func_* attributes
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- xreadlines()
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- imports of modules that have been renamed:
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# Lib/lib2to3/fixes/fix_imports.py
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MAPPING = {'StringIO': 'io',
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'cStringIO': 'io',
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'cPickle': 'pickle',
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'__builtin__' : 'builtins',
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'copy_reg': 'copyreg',
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'Queue': 'queue',
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'SocketServer': 'socketserver',
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'ConfigParser': 'configparser',
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'repr': 'reprlib',
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'FileDialog': 'tkinter.filedialog',
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'tkFileDialog': 'tkinter.filedialog',
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'SimpleDialog': 'tkinter.simpledialog',
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'tkSimpleDialog': 'tkinter.simpledialog',
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'tkColorChooser': 'tkinter.colorchooser',
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'tkCommonDialog': 'tkinter.commondialog',
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'Dialog': 'tkinter.dialog',
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'Tkdnd': 'tkinter.dnd',
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'tkFont': 'tkinter.font',
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'tkMessageBox': 'tkinter.messagebox',
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'ScrolledText': 'tkinter.scrolledtext',
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'turtle': 'tkinter.turtle',
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'Tkconstants': 'tkinter.constants',
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'Tix': 'tkinter.tix',
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'Tkinter': 'tkinter',
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'markupbase': '_markupbase',
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'_winreg': 'winreg',
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'thread': '_thread',
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'dummy_thread': '_dummy_thread',
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# anydbm and whichdb are handled by fix_imports2
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'dbhash': 'dbm.bsd',
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'dumbdbm': 'dbm.dumb',
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'dbm': 'dbm.ndbm',
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'gdbm': 'dbm.gnu',
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'xmlrpclib': 'xmlrpc.client',
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'DocXMLRPCServer': 'xmlrpc.server',
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'SimpleXMLRPCServer': 'xmlrpc.server',
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'httplib': 'http.client',
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'Cookie': 'http.cookies',
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'cookielib': 'http.cookiejar',
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'BaseHTTPServer': 'http.server',
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'SimpleHTTPServer': 'http.server',
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'CGIHTTPServer': 'http.server',
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#'test.test_support': 'test.support',
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'commands': 'subprocess',
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'UserString' : 'collections',
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'UserList' : 'collections',
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'urlparse' : 'urllib.parse',
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'robotparser' : 'urllib.robotparser',
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}
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- imports of urllib/urllib2
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# Lib/lib2to3/fixes/fix_urllib.py
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MAPPING = {'urllib': [
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('urllib.request',
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['URLOpener', 'FancyURLOpener', 'urlretrieve',
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'_urlopener', 'urlcleanup']),
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('urllib.parse',
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['quote', 'quote_plus', 'unquote', 'unquote_plus',
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'urlencode', 'pahtname2url', 'url2pathname']),
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('urllib.error',
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['ContentTooShortError'])],
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'urllib2' : [
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('urllib.request',
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['urlopen', 'install_opener', 'build_opener',
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'Request', 'OpenerDirector', 'BaseHandler',
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'HTTPDefaultErrorHandler', 'HTTPRedirectHandler',
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'HTTPCookieProcessor', 'ProxyHandler',
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'HTTPPasswordMgr',
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'HTTPPasswordMgrWithDefaultRealm',
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'AbstractBasicAuthHandler',
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'HTTPBasicAuthHandler', 'ProxyBasicAuthHandler',
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'AbstractDigestAuthHandler',
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'HTTPDigestAuthHander', 'ProxyDigestAuthHandler',
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'HTTPHandler', 'HTTPSHandler', 'FileHandler',
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'FTPHandler', 'CacheFTPHandler',
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'UnknownHandler']),
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('urllib.error',
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['URLError', 'HTTPError'])],
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}
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- tuple params (?!??!)
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- __class__ special attribute
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- __nonzero__ special method
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- next()
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- sys.maxint and sys.maxsize
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- number literals
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- Unicode string literals
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- callable()
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- filter()
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- map()
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- zip()
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- StandardError()
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- types module
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- basestring type
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- itertools functions
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- itertools imports
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- relative imports
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- sys.exc_type, sys.exc_value, sys.exc_traceback
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- list comprehensions over tuples
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- os.getcwdu()
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- metaclasses
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- set literals (EXPLICIT)
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- whitespace around commas (EXPLICIT)
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- buffer() (EXPLICIT)
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- common idioms (EXPLICIT)
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- while 1
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- type(X) == T, type(X) != T
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- type(X) is T, type(X) is not T
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- T is type(X), T is not type(X)
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- list.sort()
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