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test-highlight: decouple test from get-with-headers.py
authorMartin Geisler <mg@lazybytes.net>
Sun, 17 May 2009 21:47:24 +0200
changeset 8485 0b93eff3721d
parent 8484 15573b5dc78f
child 8486 835b1ee111f4
test-highlight: decouple test from get-with-headers.py The test copied get-with-headers.py from $TESTDIR and committed it to a test repository. The test output therefore depended unnecessarily on the exact content of get-with-headers.py. It has now been replaced with another small Python script.
tests/test-highlight file | annotate | diff | comparison | revisions
tests/test-highlight.out file | annotate | diff | comparison | revisions 
--- a/tests/test-highlight	Sun May 17 20:00:11 2009 +0200
+++ b/tests/test-highlight	Sun May 17 21:47:24 2009 +0200
@@ -11,7 +11,41 @@
 
 hg init test
 cd test
-cp $TESTDIR/get-with-headers.py ./
+# create random Python file to exercise Pygments
+cat <<EOF > primes.py
+#!/usr/bin/env python
+
+"""Fun with generators. Corresponding Haskell implementation:
+
+primes = 2 : sieve [3, 5..]
+    where sieve (p:ns) = p : sieve [n | n <- ns, mod n p /= 0]
+"""
+
+from itertools import dropwhile, ifilter, islice, count, chain
+
+def primes():
+    """Generate all primes."""
+    def sieve(ns):
+        p = ns.next()
+        # It is important to yield *here* in order to stop the
+        # infinite recursion.
+        yield p
+        ns = ifilter(lambda n: n % p != 0, ns)
+        for n in sieve(ns):
+            yield n
+
+    odds = ifilter(lambda i: i % 2 == 1, count())
+    return chain([2], sieve(dropwhile(lambda n: n < 3, odds)))
+
+if __name__ == "__main__":
+    import sys
+    try:
+        n = int(sys.argv[1])
+    except (ValueError, IndexError):
+        n = 10
+    p = primes()
+    print "The first %d primes: %s" % (n, list(islice(p, n)))
+EOF
 
 # check for UnicodeDecodeError with iso-8859-1 file contents
 python -c 'fp = open("isolatin.txt", "w"); fp.write("h\xFCbsch\n"); fp.close();'
@@ -23,7 +57,7 @@
 cat hg.pid >> $DAEMON_PIDS
 
 echo % hgweb filerevision, html
-("$TESTDIR/get-with-headers.py" localhost:$HGPORT '/file/tip/get-with-headers.py') \
+("$TESTDIR/get-with-headers.py" localhost:$HGPORT '/file/tip/primes.py') \
     | sed "s/class=\"k\"/class=\"kn\"/g" | sed "s/class=\"mf\"/class=\"mi\"/g"
 
 echo % hgweb filerevision, html
@@ -31,17 +65,17 @@
     | sed "s/class=\"k\"/class=\"kn\"/g"
 
 echo % hgweb fileannotate, html
-("$TESTDIR/get-with-headers.py" localhost:$HGPORT '/annotate/tip/get-with-headers.py') \
+("$TESTDIR/get-with-headers.py" localhost:$HGPORT '/annotate/tip/primes.py') \
     | sed "s/class=\"k\"/class=\"kn\"/g" | sed "s/class=\"mi\"/class=\"mf\"/g"
 
 echo % hgweb fileannotate, raw
-("$TESTDIR/get-with-headers.py" localhost:$HGPORT '/annotate/tip/get-with-headers.py?style=raw') \
+("$TESTDIR/get-with-headers.py" localhost:$HGPORT '/annotate/tip/primes.py?style=raw') \
     | sed "s/test@//" > a
 
 echo "200 Script output follows" > b
 echo "" >> b
 echo "" >> b
-hg annotate "get-with-headers.py" >> b
+hg annotate "primes.py" >> b
 echo "" >> b
 echo "" >> b
 echo "" >> b
@@ -51,12 +85,12 @@
 
 echo
 echo % hgweb filerevision, raw
-("$TESTDIR/get-with-headers.py" localhost:$HGPORT '/file/tip/get-with-headers.py?style=raw') \
+("$TESTDIR/get-with-headers.py" localhost:$HGPORT '/file/tip/primes.py?style=raw') \
     > a
 
 echo "200 Script output follows" > b
 echo "" >> b
-hg cat get-with-headers.py >> b
+hg cat primes.py >> b
 
 diff -u b a
 
--- a/tests/test-highlight.out	Sun May 17 20:00:11 2009 +0200
+++ b/tests/test-highlight.out	Sun May 17 21:47:24 2009 +0200
@@ -1,5 +1,5 @@
-adding get-with-headers.py
 adding isolatin.txt
+adding primes.py
 % hg serve
 % hgweb filerevision, html
 200 Script output follows
@@ -12,7 +12,7 @@
 <link rel="stylesheet" href="/static/style-paper.css" type="text/css" />
 
 <link rel="stylesheet" href="/highlightcss" type="text/css" />
-<title>test: 93b701795893 get-with-headers.py</title>
+<title>test: 3e1445510fe7 primes.py</title>
 </head>
 <body>
 
@@ -23,27 +23,27 @@
 <img src="/static/hglogo.png" alt="mercurial" /></a>
 </div>
 <ul>
-<li><a href="/shortlog/93b701795893">log</a></li>
-<li><a href="/graph/93b701795893">graph</a></li>
+<li><a href="/shortlog/3e1445510fe7">log</a></li>
+<li><a href="/graph/3e1445510fe7">graph</a></li>
 <li><a href="/tags">tags</a></li>
 <li><a href="/branches">branches</a></li>
 </ul>
 <ul>
-<li><a href="/rev/93b701795893">changeset</a></li>
-<li><a href="/file/93b701795893/">browse</a></li>
+<li><a href="/rev/3e1445510fe7">changeset</a></li>
+<li><a href="/file/3e1445510fe7/">browse</a></li>
 </ul>
 <ul>
 <li class="active">file</li>
-<li><a href="/diff/93b701795893/get-with-headers.py">diff</a></li>
-<li><a href="/annotate/93b701795893/get-with-headers.py">annotate</a></li>
-<li><a href="/log/93b701795893/get-with-headers.py">file log</a></li>
-<li><a href="/raw-file/93b701795893/get-with-headers.py">raw</a></li>
+<li><a href="/diff/3e1445510fe7/primes.py">diff</a></li>
+<li><a href="/annotate/3e1445510fe7/primes.py">annotate</a></li>
+<li><a href="/log/3e1445510fe7/primes.py">file log</a></li>
+<li><a href="/raw-file/3e1445510fe7/primes.py">raw</a></li>
 </ul>
 </div>
 
 <div class="main">
 <h2><a href="/">test</a></h2>
-<h3>view get-with-headers.py @ 0:93b701795893</h3>
+<h3>view primes.py @ 0:3e1445510fe7</h3>
 
 <form class="search" action="/log">
 
@@ -76,7 +76,7 @@
 
 <div class="overflow">
 <div class="sourcefirst"> line source</div>
-<div class="parity0 source"><a href="#l1" id="l1">     1</a> <span class="c">#!/usr/bin/env python</span></div><div class="parity1 source"><a href="#l2" id="l2">     2</a> </div><div class="parity0 source"><a href="#l3" id="l3">     3</a> <span class="sd">&quot;&quot;&quot;This does HTTP GET requests given a host:port and path and returns</span></div><div class="parity1 source"><a href="#l4" id="l4">     4</a> <span class="sd">a subset of the headers plus the body of the result.&quot;&quot;&quot;</span></div><div class="parity0 source"><a href="#l5" id="l5">     5</a> </div><div class="parity1 source"><a href="#l6" id="l6">     6</a> <span class="kn">import</span> <span class="nn">httplib</span><span class="o">,</span> <span class="nn">sys</span><span class="o">,</span> <span class="nn">re</span></div><div class="parity0 source"><a href="#l7" id="l7">     7</a> </div><div class="parity1 source"><a href="#l8" id="l8">     8</a> <span class="kn">try</span><span class="p">:</span></div><div class="parity0 source"><a href="#l9" id="l9">     9</a>     <span class="kn">import</span> <span class="nn">msvcrt</span><span class="o">,</span> <span class="nn">os</span></div><div class="parity1 source"><a href="#l10" id="l10">    10</a>     <span class="n">msvcrt</span><span class="o">.</span><span class="n">setmode</span><span class="p">(</span><span class="n">sys</span><span class="o">.</span><span class="n">stdout</span><span class="o">.</span><span class="n">fileno</span><span class="p">(),</span> <span class="n">os</span><span class="o">.</span><span class="n">O_BINARY</span><span class="p">)</span></div><div class="parity0 source"><a href="#l11" id="l11">    11</a>     <span class="n">msvcrt</span><span class="o">.</span><span class="n">setmode</span><span class="p">(</span><span class="n">sys</span><span class="o">.</span><span class="n">stderr</span><span class="o">.</span><span class="n">fileno</span><span class="p">(),</span> <span class="n">os</span><span class="o">.</span><span class="n">O_BINARY</span><span class="p">)</span></div><div class="parity1 source"><a href="#l12" id="l12">    12</a> <span class="kn">except</span> <span class="ne">ImportError</span><span class="p">:</span></div><div class="parity0 source"><a href="#l13" id="l13">    13</a>     <span class="kn">pass</span></div><div class="parity1 source"><a href="#l14" id="l14">    14</a> </div><div class="parity0 source"><a href="#l15" id="l15">    15</a> <span class="n">headers</span> <span class="o">=</span> <span class="p">[</span><span class="n">h</span><span class="o">.</span><span class="n">lower</span><span class="p">()</span> <span class="kn">for</span> <span class="n">h</span> <span class="ow">in</span> <span class="n">sys</span><span class="o">.</span><span class="n">argv</span><span class="p">[</span><span class="mi">3</span><span class="p">:]]</span></div><div class="parity1 source"><a href="#l16" id="l16">    16</a> <span class="n">conn</span> <span class="o">=</span> <span class="n">httplib</span><span class="o">.</span><span class="n">HTTPConnection</span><span class="p">(</span><span class="n">sys</span><span class="o">.</span><span class="n">argv</span><span class="p">[</span><span class="mi">1</span><span class="p">])</span></div><div class="parity0 source"><a href="#l17" id="l17">    17</a> <span class="n">conn</span><span class="o">.</span><span class="n">request</span><span class="p">(</span><span class="s">&quot;GET&quot;</span><span class="p">,</span> <span class="n">sys</span><span class="o">.</span><span class="n">argv</span><span class="p">[</span><span class="mi">2</span><span class="p">])</span></div><div class="parity1 source"><a href="#l18" id="l18">    18</a> <span class="n">response</span> <span class="o">=</span> <span class="n">conn</span><span class="o">.</span><span class="n">getresponse</span><span class="p">()</span></div><div class="parity0 source"><a href="#l19" id="l19">    19</a> <span class="kn">print</span> <span class="n">response</span><span class="o">.</span><span class="n">status</span><span class="p">,</span> <span class="n">response</span><span class="o">.</span><span class="n">reason</span></div><div class="parity1 source"><a href="#l20" id="l20">    20</a> <span class="kn">for</span> <span class="n">h</span> <span class="ow">in</span> <span class="n">headers</span><span class="p">:</span></div><div class="parity0 source"><a href="#l21" id="l21">    21</a>     <span class="kn">if</span> <span class="n">response</span><span class="o">.</span><span class="n">getheader</span><span class="p">(</span><span class="n">h</span><span class="p">,</span> <span class="bp">None</span><span class="p">)</span> <span class="ow">is</span> <span class="ow">not</span> <span class="bp">None</span><span class="p">:</span></div><div class="parity1 source"><a href="#l22" id="l22">    22</a>         <span class="kn">print</span> <span class="s">&quot;</span><span class="si">%s</span><span class="s">: </span><span class="si">%s</span><span class="s">&quot;</span> <span class="o">%</span> <span class="p">(</span><span class="n">h</span><span class="p">,</span> <span class="n">response</span><span class="o">.</span><span class="n">getheader</span><span class="p">(</span><span class="n">h</span><span class="p">))</span></div><div class="parity0 source"><a href="#l23" id="l23">    23</a> <span class="kn">print</span></div><div class="parity1 source"><a href="#l24" id="l24">    24</a> <span class="n">data</span> <span class="o">=</span> <span class="n">response</span><span class="o">.</span><span class="n">read</span><span class="p">()</span></div><div class="parity0 source"><a href="#l25" id="l25">    25</a> <span class="n">data</span> <span class="o">=</span> <span class="n">re</span><span class="o">.</span><span class="n">sub</span><span class="p">(</span><span class="s">&#39;\d+ years&#39;</span><span class="p">,</span> <span class="s">&#39;many years&#39;</span><span class="p">,</span> <span class="n">data</span><span class="p">)</span></div><div class="parity1 source"><a href="#l26" id="l26">    26</a> <span class="n">sys</span><span class="o">.</span><span class="n">stdout</span><span class="o">.</span><span class="n">write</span><span class="p">(</span><span class="n">data</span><span class="p">)</span></div><div class="parity0 source"><a href="#l27" id="l27">    27</a> </div><div class="parity1 source"><a href="#l28" id="l28">    28</a> <span class="kn">if</span> <span class="mi">200</span> <span class="o">&lt;=</span> <span class="n">response</span><span class="o">.</span><span class="n">status</span> <span class="o">&lt;=</span> <span class="mi">299</span><span class="p">:</span></div><div class="parity0 source"><a href="#l29" id="l29">    29</a>     <span class="n">sys</span><span class="o">.</span><span class="n">exit</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span></div><div class="parity1 source"><a href="#l30" id="l30">    30</a> <span class="n">sys</span><span class="o">.</span><span class="n">exit</span><span class="p">(</span><span class="mi">1</span><span class="p">)</span></div>
+<div class="parity0 source"><a href="#l1" id="l1">     1</a> <span class="c">#!/usr/bin/env python</span></div><div class="parity1 source"><a href="#l2" id="l2">     2</a> </div><div class="parity0 source"><a href="#l3" id="l3">     3</a> <span class="sd">&quot;&quot;&quot;Fun with generators. Corresponding Haskell implementation:</span></div><div class="parity1 source"><a href="#l4" id="l4">     4</a> </div><div class="parity0 source"><a href="#l5" id="l5">     5</a> <span class="sd">primes = 2 : sieve [3, 5..]</span></div><div class="parity1 source"><a href="#l6" id="l6">     6</a> <span class="sd">    where sieve (p:ns) = p : sieve [n | n &lt;- ns, mod n p /= 0]</span></div><div class="parity0 source"><a href="#l7" id="l7">     7</a> <span class="sd">&quot;&quot;&quot;</span></div><div class="parity1 source"><a href="#l8" id="l8">     8</a> </div><div class="parity0 source"><a href="#l9" id="l9">     9</a> <span class="kn">from</span> <span class="nn">itertools</span> <span class="kn">import</span> <span class="n">dropwhile</span><span class="p">,</span> <span class="n">ifilter</span><span class="p">,</span> <span class="n">islice</span><span class="p">,</span> <span class="n">count</span><span class="p">,</span> <span class="n">chain</span></div><div class="parity1 source"><a href="#l10" id="l10">    10</a> </div><div class="parity0 source"><a href="#l11" id="l11">    11</a> <span class="kn">def</span> <span class="nf">primes</span><span class="p">():</span></div><div class="parity1 source"><a href="#l12" id="l12">    12</a>     <span class="sd">&quot;&quot;&quot;Generate all primes.&quot;&quot;&quot;</span></div><div class="parity0 source"><a href="#l13" id="l13">    13</a>     <span class="kn">def</span> <span class="nf">sieve</span><span class="p">(</span><span class="n">ns</span><span class="p">):</span></div><div class="parity1 source"><a href="#l14" id="l14">    14</a>         <span class="n">p</span> <span class="o">=</span> <span class="n">ns</span><span class="o">.</span><span class="n">next</span><span class="p">()</span></div><div class="parity0 source"><a href="#l15" id="l15">    15</a>         <span class="c"># It is important to yield *here* in order to stop the</span></div><div class="parity1 source"><a href="#l16" id="l16">    16</a>         <span class="c"># infinite recursion.</span></div><div class="parity0 source"><a href="#l17" id="l17">    17</a>         <span class="kn">yield</span> <span class="n">p</span></div><div class="parity1 source"><a href="#l18" id="l18">    18</a>         <span class="n">ns</span> <span class="o">=</span> <span class="n">ifilter</span><span class="p">(</span><span class="kn">lambda</span> <span class="n">n</span><span class="p">:</span> <span class="n">n</span> <span class="o">%</span> <span class="n">p</span> <span class="o">!=</span> <span class="mi">0</span><span class="p">,</span> <span class="n">ns</span><span class="p">)</span></div><div class="parity0 source"><a href="#l19" id="l19">    19</a>         <span class="kn">for</span> <span class="n">n</span> <span class="ow">in</span> <span class="n">sieve</span><span class="p">(</span><span class="n">ns</span><span class="p">):</span></div><div class="parity1 source"><a href="#l20" id="l20">    20</a>             <span class="kn">yield</span> <span class="n">n</span></div><div class="parity0 source"><a href="#l21" id="l21">    21</a> </div><div class="parity1 source"><a href="#l22" id="l22">    22</a>     <span class="n">odds</span> <span class="o">=</span> <span class="n">ifilter</span><span class="p">(</span><span class="kn">lambda</span> <span class="n">i</span><span class="p">:</span> <span class="n">i</span> <span class="o">%</span> <span class="mi">2</span> <span class="o">==</span> <span class="mi">1</span><span class="p">,</span> <span class="n">count</span><span class="p">())</span></div><div class="parity0 source"><a href="#l23" id="l23">    23</a>     <span class="kn">return</span> <span class="n">chain</span><span class="p">([</span><span class="mi">2</span><span class="p">],</span> <span class="n">sieve</span><span class="p">(</span><span class="n">dropwhile</span><span class="p">(</span><span class="kn">lambda</span> <span class="n">n</span><span class="p">:</span> <span class="n">n</span> <span class="o">&lt;</span> <span class="mi">3</span><span class="p">,</span> <span class="n">odds</span><span class="p">)))</span></div><div class="parity1 source"><a href="#l24" id="l24">    24</a> </div><div class="parity0 source"><a href="#l25" id="l25">    25</a> <span class="kn">if</span> <span class="n">__name__</span> <span class="o">==</span> <span class="s">&quot;__main__&quot;</span><span class="p">:</span></div><div class="parity1 source"><a href="#l26" id="l26">    26</a>     <span class="kn">import</span> <span class="nn">sys</span></div><div class="parity0 source"><a href="#l27" id="l27">    27</a>     <span class="kn">try</span><span class="p">:</span></div><div class="parity1 source"><a href="#l28" id="l28">    28</a>         <span class="n">n</span> <span class="o">=</span> <span class="nb">int</span><span class="p">(</span><span class="n">sys</span><span class="o">.</span><span class="n">argv</span><span class="p">[</span><span class="mi">1</span><span class="p">])</span></div><div class="parity0 source"><a href="#l29" id="l29">    29</a>     <span class="kn">except</span> <span class="p">(</span><span class="ne">ValueError</span><span class="p">,</span> <span class="ne">IndexError</span><span class="p">):</span></div><div class="parity1 source"><a href="#l30" id="l30">    30</a>         <span class="n">n</span> <span class="o">=</span> <span class="mi">10</span></div><div class="parity0 source"><a href="#l31" id="l31">    31</a>     <span class="n">p</span> <span class="o">=</span> <span class="n">primes</span><span class="p">()</span></div><div class="parity1 source"><a href="#l32" id="l32">    32</a>     <span class="kn">print</span> <span class="s">&quot;The first </span><span class="si">%d</span><span class="s"> primes: </span><span class="si">%s</span><span class="s">&quot;</span> <span class="o">%</span> <span class="p">(</span><span class="n">n</span><span class="p">,</span> <span class="nb">list</span><span class="p">(</span><span class="n">islice</span><span class="p">(</span><span class="n">p</span><span class="p">,</span> <span class="n">n</span><span class="p">)))</span></div>
 <div class="sourcelast"></div>
 </div>
 </div>
@@ -98,7 +98,7 @@
 <link rel="stylesheet" href="/static/style-paper.css" type="text/css" />
 
 <link rel="stylesheet" href="/highlightcss" type="text/css" />
-<title>test: 93b701795893 isolatin.txt</title>
+<title>test: 3e1445510fe7 isolatin.txt</title>
 </head>
 <body>
 
@@ -109,27 +109,27 @@
 <img src="/static/hglogo.png" alt="mercurial" /></a>
 </div>
 <ul>
-<li><a href="/shortlog/93b701795893">log</a></li>
-<li><a href="/graph/93b701795893">graph</a></li>
+<li><a href="/shortlog/3e1445510fe7">log</a></li>
+<li><a href="/graph/3e1445510fe7">graph</a></li>
 <li><a href="/tags">tags</a></li>
 <li><a href="/branches">branches</a></li>
 </ul>
 <ul>
-<li><a href="/rev/93b701795893">changeset</a></li>
-<li><a href="/file/93b701795893/">browse</a></li>
+<li><a href="/rev/3e1445510fe7">changeset</a></li>
+<li><a href="/file/3e1445510fe7/">browse</a></li>
 </ul>
 <ul>
 <li class="active">file</li>
-<li><a href="/diff/93b701795893/isolatin.txt">diff</a></li>
-<li><a href="/annotate/93b701795893/isolatin.txt">annotate</a></li>
-<li><a href="/log/93b701795893/isolatin.txt">file log</a></li>
-<li><a href="/raw-file/93b701795893/isolatin.txt">raw</a></li>
+<li><a href="/diff/3e1445510fe7/isolatin.txt">diff</a></li>
+<li><a href="/annotate/3e1445510fe7/isolatin.txt">annotate</a></li>
+<li><a href="/log/3e1445510fe7/isolatin.txt">file log</a></li>
+<li><a href="/raw-file/3e1445510fe7/isolatin.txt">raw</a></li>
 </ul>
 </div>
 
 <div class="main">
 <h2><a href="/">test</a></h2>
-<h3>view isolatin.txt @ 0:93b701795893</h3>
+<h3>view isolatin.txt @ 0:3e1445510fe7</h3>
 
 <form class="search" action="/log">
 
@@ -184,7 +184,7 @@
 <link rel="stylesheet" href="/static/style-paper.css" type="text/css" />
 
 <link rel="stylesheet" href="/highlightcss" type="text/css" />
-<title>test: get-with-headers.py annotate</title>
+<title>test: primes.py annotate</title>
 </head>
 <body>
 
@@ -195,28 +195,28 @@
 <img src="/static/hglogo.png" alt="mercurial" /></a>
 </div>
 <ul>
-<li><a href="/shortlog/93b701795893">log</a></li>
-<li><a href="/graph/93b701795893">graph</a></li>
+<li><a href="/shortlog/3e1445510fe7">log</a></li>
+<li><a href="/graph/3e1445510fe7">graph</a></li>
 <li><a href="/tags">tags</a></li>
 <li><a href="/branches">branches</a></li>
 </ul>
 
 <ul>
-<li><a href="/rev/93b701795893">changeset</a></li>
-<li><a href="/file/93b701795893/">browse</a></li>
+<li><a href="/rev/3e1445510fe7">changeset</a></li>
+<li><a href="/file/3e1445510fe7/">browse</a></li>
 </ul>
 <ul>
-<li><a href="/file/93b701795893/get-with-headers.py">file</a></li>
-<li><a href="/diff/93b701795893/get-with-headers.py">diff</a></li>
+<li><a href="/file/3e1445510fe7/primes.py">file</a></li>
+<li><a href="/diff/3e1445510fe7/primes.py">diff</a></li>
 <li class="active">annotate</li>
-<li><a href="/log/93b701795893/get-with-headers.py">file log</a></li>
-<li><a href="/raw-annotate/93b701795893/get-with-headers.py">raw</a></li>
+<li><a href="/log/3e1445510fe7/primes.py">file log</a></li>
+<li><a href="/raw-annotate/3e1445510fe7/primes.py">raw</a></li>
 </ul>
 </div>
 
 <div class="main">
 <h2><a href="/">test</a></h2>
-<h3>annotate get-with-headers.py @ 0:93b701795893</h3>
+<h3>annotate primes.py @ 0:3e1445510fe7</h3>
 
 <form class="search" action="/log">
 
@@ -258,213 +258,227 @@
 
 <tr class="parity0">
 <td class="annotate">
-<a href="/annotate/93b701795893/get-with-headers.py#1"
-title="93b701795893: a">test@0</a>
+<a href="/annotate/3e1445510fe7/primes.py#1"
+title="3e1445510fe7: a">test@0</a>
 </td>
 <td class="source"><a href="#l1" id="l1">     1</a> <span class="c">#!/usr/bin/env python</span></td>
 </tr>
 <tr class="parity1">
 <td class="annotate">
-<a href="/annotate/93b701795893/get-with-headers.py#2"
-title="93b701795893: a">test@0</a>
+<a href="/annotate/3e1445510fe7/primes.py#2"
+title="3e1445510fe7: a">test@0</a>
 </td>
 <td class="source"><a href="#l2" id="l2">     2</a> </td>
 </tr>
 <tr class="parity0">
 <td class="annotate">
-<a href="/annotate/93b701795893/get-with-headers.py#3"
-title="93b701795893: a">test@0</a>
+<a href="/annotate/3e1445510fe7/primes.py#3"
+title="3e1445510fe7: a">test@0</a>
 </td>
-<td class="source"><a href="#l3" id="l3">     3</a> <span class="sd">&quot;&quot;&quot;This does HTTP GET requests given a host:port and path and returns</span></td>
+<td class="source"><a href="#l3" id="l3">     3</a> <span class="sd">&quot;&quot;&quot;Fun with generators. Corresponding Haskell implementation:</span></td>
 </tr>
 <tr class="parity1">
 <td class="annotate">
-<a href="/annotate/93b701795893/get-with-headers.py#4"
-title="93b701795893: a">test@0</a>
+<a href="/annotate/3e1445510fe7/primes.py#4"
+title="3e1445510fe7: a">test@0</a>
 </td>
-<td class="source"><a href="#l4" id="l4">     4</a> <span class="sd">a subset of the headers plus the body of the result.&quot;&quot;&quot;</span></td>
+<td class="source"><a href="#l4" id="l4">     4</a> </td>
 </tr>
 <tr class="parity0">
 <td class="annotate">
-<a href="/annotate/93b701795893/get-with-headers.py#5"
-title="93b701795893: a">test@0</a>
+<a href="/annotate/3e1445510fe7/primes.py#5"
+title="3e1445510fe7: a">test@0</a>
 </td>
-<td class="source"><a href="#l5" id="l5">     5</a> </td>
+<td class="source"><a href="#l5" id="l5">     5</a> <span class="sd">primes = 2 : sieve [3, 5..]</span></td>
 </tr>
 <tr class="parity1">
 <td class="annotate">
-<a href="/annotate/93b701795893/get-with-headers.py#6"
-title="93b701795893: a">test@0</a>
+<a href="/annotate/3e1445510fe7/primes.py#6"
+title="3e1445510fe7: a">test@0</a>
 </td>
-<td class="source"><a href="#l6" id="l6">     6</a> <span class="kn">import</span> <span class="nn">httplib</span><span class="o">,</span> <span class="nn">sys</span><span class="o">,</span> <span class="nn">re</span></td>
+<td class="source"><a href="#l6" id="l6">     6</a> <span class="sd">    where sieve (p:ns) = p : sieve [n | n &lt;- ns, mod n p /= 0]</span></td>
 </tr>
 <tr class="parity0">
 <td class="annotate">
-<a href="/annotate/93b701795893/get-with-headers.py#7"
-title="93b701795893: a">test@0</a>
+<a href="/annotate/3e1445510fe7/primes.py#7"
+title="3e1445510fe7: a">test@0</a>
 </td>
-<td class="source"><a href="#l7" id="l7">     7</a> </td>
+<td class="source"><a href="#l7" id="l7">     7</a> <span class="sd">&quot;&quot;&quot;</span></td>
 </tr>
 <tr class="parity1">
 <td class="annotate">
-<a href="/annotate/93b701795893/get-with-headers.py#8"
-title="93b701795893: a">test@0</a>
+<a href="/annotate/3e1445510fe7/primes.py#8"
+title="3e1445510fe7: a">test@0</a>
 </td>
-<td class="source"><a href="#l8" id="l8">     8</a> <span class="kn">try</span><span class="p">:</span></td>
+<td class="source"><a href="#l8" id="l8">     8</a> </td>
 </tr>
 <tr class="parity0">
 <td class="annotate">
-<a href="/annotate/93b701795893/get-with-headers.py#9"
-title="93b701795893: a">test@0</a>
+<a href="/annotate/3e1445510fe7/primes.py#9"
+title="3e1445510fe7: a">test@0</a>
 </td>
-<td class="source"><a href="#l9" id="l9">     9</a>     <span class="kn">import</span> <span class="nn">msvcrt</span><span class="o">,</span> <span class="nn">os</span></td>
+<td class="source"><a href="#l9" id="l9">     9</a> <span class="kn">from</span> <span class="nn">itertools</span> <span class="kn">import</span> <span class="n">dropwhile</span><span class="p">,</span> <span class="n">ifilter</span><span class="p">,</span> <span class="n">islice</span><span class="p">,</span> <span class="n">count</span><span class="p">,</span> <span class="n">chain</span></td>
 </tr>
 <tr class="parity1">
 <td class="annotate">
-<a href="/annotate/93b701795893/get-with-headers.py#10"
-title="93b701795893: a">test@0</a>
+<a href="/annotate/3e1445510fe7/primes.py#10"
+title="3e1445510fe7: a">test@0</a>
 </td>
-<td class="source"><a href="#l10" id="l10">    10</a>     <span class="n">msvcrt</span><span class="o">.</span><span class="n">setmode</span><span class="p">(</span><span class="n">sys</span><span class="o">.</span><span class="n">stdout</span><span class="o">.</span><span class="n">fileno</span><span class="p">(),</span> <span class="n">os</span><span class="o">.</span><span class="n">O_BINARY</span><span class="p">)</span></td>
+<td class="source"><a href="#l10" id="l10">    10</a> </td>
 </tr>
 <tr class="parity0">
 <td class="annotate">
-<a href="/annotate/93b701795893/get-with-headers.py#11"
-title="93b701795893: a">test@0</a>
+<a href="/annotate/3e1445510fe7/primes.py#11"
+title="3e1445510fe7: a">test@0</a>
 </td>
-<td class="source"><a href="#l11" id="l11">    11</a>     <span class="n">msvcrt</span><span class="o">.</span><span class="n">setmode</span><span class="p">(</span><span class="n">sys</span><span class="o">.</span><span class="n">stderr</span><span class="o">.</span><span class="n">fileno</span><span class="p">(),</span> <span class="n">os</span><span class="o">.</span><span class="n">O_BINARY</span><span class="p">)</span></td>
+<td class="source"><a href="#l11" id="l11">    11</a> <span class="kn">def</span> <span class="nf">primes</span><span class="p">():</span></td>
 </tr>
 <tr class="parity1">
 <td class="annotate">
-<a href="/annotate/93b701795893/get-with-headers.py#12"
-title="93b701795893: a">test@0</a>
+<a href="/annotate/3e1445510fe7/primes.py#12"
+title="3e1445510fe7: a">test@0</a>
 </td>
-<td class="source"><a href="#l12" id="l12">    12</a> <span class="kn">except</span> <span class="ne">ImportError</span><span class="p">:</span></td>
+<td class="source"><a href="#l12" id="l12">    12</a>     <span class="sd">&quot;&quot;&quot;Generate all primes.&quot;&quot;&quot;</span></td>
 </tr>
 <tr class="parity0">
 <td class="annotate">
-<a href="/annotate/93b701795893/get-with-headers.py#13"
-title="93b701795893: a">test@0</a>
+<a href="/annotate/3e1445510fe7/primes.py#13"
+title="3e1445510fe7: a">test@0</a>
 </td>
-<td class="source"><a href="#l13" id="l13">    13</a>     <span class="kn">pass</span></td>
+<td class="source"><a href="#l13" id="l13">    13</a>     <span class="kn">def</span> <span class="nf">sieve</span><span class="p">(</span><span class="n">ns</span><span class="p">):</span></td>
 </tr>
 <tr class="parity1">
 <td class="annotate">
-<a href="/annotate/93b701795893/get-with-headers.py#14"
-title="93b701795893: a">test@0</a>
+<a href="/annotate/3e1445510fe7/primes.py#14"
+title="3e1445510fe7: a">test@0</a>
 </td>
-<td class="source"><a href="#l14" id="l14">    14</a> </td>
+<td class="source"><a href="#l14" id="l14">    14</a>         <span class="n">p</span> <span class="o">=</span> <span class="n">ns</span><span class="o">.</span><span class="n">next</span><span class="p">()</span></td>
 </tr>
 <tr class="parity0">
 <td class="annotate">
-<a href="/annotate/93b701795893/get-with-headers.py#15"
-title="93b701795893: a">test@0</a>
+<a href="/annotate/3e1445510fe7/primes.py#15"
+title="3e1445510fe7: a">test@0</a>
 </td>
-<td class="source"><a href="#l15" id="l15">    15</a> <span class="n">headers</span> <span class="o">=</span> <span class="p">[</span><span class="n">h</span><span class="o">.</span><span class="n">lower</span><span class="p">()</span> <span class="kn">for</span> <span class="n">h</span> <span class="ow">in</span> <span class="n">sys</span><span class="o">.</span><span class="n">argv</span><span class="p">[</span><span class="mf">3</span><span class="p">:]]</span></td>
+<td class="source"><a href="#l15" id="l15">    15</a>         <span class="c"># It is important to yield *here* in order to stop the</span></td>
 </tr>
 <tr class="parity1">
 <td class="annotate">
-<a href="/annotate/93b701795893/get-with-headers.py#16"
-title="93b701795893: a">test@0</a>
+<a href="/annotate/3e1445510fe7/primes.py#16"
+title="3e1445510fe7: a">test@0</a>
 </td>
-<td class="source"><a href="#l16" id="l16">    16</a> <span class="n">conn</span> <span class="o">=</span> <span class="n">httplib</span><span class="o">.</span><span class="n">HTTPConnection</span><span class="p">(</span><span class="n">sys</span><span class="o">.</span><span class="n">argv</span><span class="p">[</span><span class="mf">1</span><span class="p">])</span></td>
+<td class="source"><a href="#l16" id="l16">    16</a>         <span class="c"># infinite recursion.</span></td>
 </tr>
 <tr class="parity0">
 <td class="annotate">
-<a href="/annotate/93b701795893/get-with-headers.py#17"
-title="93b701795893: a">test@0</a>
+<a href="/annotate/3e1445510fe7/primes.py#17"
+title="3e1445510fe7: a">test@0</a>
 </td>
-<td class="source"><a href="#l17" id="l17">    17</a> <span class="n">conn</span><span class="o">.</span><span class="n">request</span><span class="p">(</span><span class="s">&quot;GET&quot;</span><span class="p">,</span> <span class="n">sys</span><span class="o">.</span><span class="n">argv</span><span class="p">[</span><span class="mf">2</span><span class="p">])</span></td>
+<td class="source"><a href="#l17" id="l17">    17</a>         <span class="kn">yield</span> <span class="n">p</span></td>
 </tr>
 <tr class="parity1">
 <td class="annotate">
-<a href="/annotate/93b701795893/get-with-headers.py#18"
-title="93b701795893: a">test@0</a>
+<a href="/annotate/3e1445510fe7/primes.py#18"
+title="3e1445510fe7: a">test@0</a>
 </td>
-<td class="source"><a href="#l18" id="l18">    18</a> <span class="n">response</span> <span class="o">=</span> <span class="n">conn</span><span class="o">.</span><span class="n">getresponse</span><span class="p">()</span></td>
+<td class="source"><a href="#l18" id="l18">    18</a>         <span class="n">ns</span> <span class="o">=</span> <span class="n">ifilter</span><span class="p">(</span><span class="kn">lambda</span> <span class="n">n</span><span class="p">:</span> <span class="n">n</span> <span class="o">%</span> <span class="n">p</span> <span class="o">!=</span> <span class="mf">0</span><span class="p">,</span> <span class="n">ns</span><span class="p">)</span></td>
 </tr>
 <tr class="parity0">
 <td class="annotate">
-<a href="/annotate/93b701795893/get-with-headers.py#19"
-title="93b701795893: a">test@0</a>
+<a href="/annotate/3e1445510fe7/primes.py#19"
+title="3e1445510fe7: a">test@0</a>
 </td>
-<td class="source"><a href="#l19" id="l19">    19</a> <span class="kn">print</span> <span class="n">response</span><span class="o">.</span><span class="n">status</span><span class="p">,</span> <span class="n">response</span><span class="o">.</span><span class="n">reason</span></td>
+<td class="source"><a href="#l19" id="l19">    19</a>         <span class="kn">for</span> <span class="n">n</span> <span class="ow">in</span> <span class="n">sieve</span><span class="p">(</span><span class="n">ns</span><span class="p">):</span></td>
 </tr>
 <tr class="parity1">
 <td class="annotate">
-<a href="/annotate/93b701795893/get-with-headers.py#20"
-title="93b701795893: a">test@0</a>
+<a href="/annotate/3e1445510fe7/primes.py#20"
+title="3e1445510fe7: a">test@0</a>
 </td>
-<td class="source"><a href="#l20" id="l20">    20</a> <span class="kn">for</span> <span class="n">h</span> <span class="ow">in</span> <span class="n">headers</span><span class="p">:</span></td>
+<td class="source"><a href="#l20" id="l20">    20</a>             <span class="kn">yield</span> <span class="n">n</span></td>
 </tr>
 <tr class="parity0">
 <td class="annotate">
-<a href="/annotate/93b701795893/get-with-headers.py#21"
-title="93b701795893: a">test@0</a>
+<a href="/annotate/3e1445510fe7/primes.py#21"
+title="3e1445510fe7: a">test@0</a>
 </td>
-<td class="source"><a href="#l21" id="l21">    21</a>     <span class="kn">if</span> <span class="n">response</span><span class="o">.</span><span class="n">getheader</span><span class="p">(</span><span class="n">h</span><span class="p">,</span> <span class="bp">None</span><span class="p">)</span> <span class="ow">is</span> <span class="ow">not</span> <span class="bp">None</span><span class="p">:</span></td>
+<td class="source"><a href="#l21" id="l21">    21</a> </td>
 </tr>
 <tr class="parity1">
 <td class="annotate">
-<a href="/annotate/93b701795893/get-with-headers.py#22"
-title="93b701795893: a">test@0</a>
+<a href="/annotate/3e1445510fe7/primes.py#22"
+title="3e1445510fe7: a">test@0</a>
 </td>
-<td class="source"><a href="#l22" id="l22">    22</a>         <span class="kn">print</span> <span class="s">&quot;</span><span class="si">%s</span><span class="s">: </span><span class="si">%s</span><span class="s">&quot;</span> <span class="o">%</span> <span class="p">(</span><span class="n">h</span><span class="p">,</span> <span class="n">response</span><span class="o">.</span><span class="n">getheader</span><span class="p">(</span><span class="n">h</span><span class="p">))</span></td>
+<td class="source"><a href="#l22" id="l22">    22</a>     <span class="n">odds</span> <span class="o">=</span> <span class="n">ifilter</span><span class="p">(</span><span class="kn">lambda</span> <span class="n">i</span><span class="p">:</span> <span class="n">i</span> <span class="o">%</span> <span class="mf">2</span> <span class="o">==</span> <span class="mf">1</span><span class="p">,</span> <span class="n">count</span><span class="p">())</span></td>
 </tr>
 <tr class="parity0">
 <td class="annotate">
-<a href="/annotate/93b701795893/get-with-headers.py#23"
-title="93b701795893: a">test@0</a>
+<a href="/annotate/3e1445510fe7/primes.py#23"
+title="3e1445510fe7: a">test@0</a>
 </td>
-<td class="source"><a href="#l23" id="l23">    23</a> <span class="kn">print</span></td>
+<td class="source"><a href="#l23" id="l23">    23</a>     <span class="kn">return</span> <span class="n">chain</span><span class="p">([</span><span class="mf">2</span><span class="p">],</span> <span class="n">sieve</span><span class="p">(</span><span class="n">dropwhile</span><span class="p">(</span><span class="kn">lambda</span> <span class="n">n</span><span class="p">:</span> <span class="n">n</span> <span class="o">&lt;</span> <span class="mf">3</span><span class="p">,</span> <span class="n">odds</span><span class="p">)))</span></td>
 </tr>
 <tr class="parity1">
 <td class="annotate">
-<a href="/annotate/93b701795893/get-with-headers.py#24"
-title="93b701795893: a">test@0</a>
+<a href="/annotate/3e1445510fe7/primes.py#24"
+title="3e1445510fe7: a">test@0</a>
 </td>
-<td class="source"><a href="#l24" id="l24">    24</a> <span class="n">data</span> <span class="o">=</span> <span class="n">response</span><span class="o">.</span><span class="n">read</span><span class="p">()</span></td>
+<td class="source"><a href="#l24" id="l24">    24</a> </td>
 </tr>
 <tr class="parity0">
 <td class="annotate">
-<a href="/annotate/93b701795893/get-with-headers.py#25"
-title="93b701795893: a">test@0</a>
+<a href="/annotate/3e1445510fe7/primes.py#25"
+title="3e1445510fe7: a">test@0</a>
 </td>
-<td class="source"><a href="#l25" id="l25">    25</a> <span class="n">data</span> <span class="o">=</span> <span class="n">re</span><span class="o">.</span><span class="n">sub</span><span class="p">(</span><span class="s">&#39;\d+ years&#39;</span><span class="p">,</span> <span class="s">&#39;many years&#39;</span><span class="p">,</span> <span class="n">data</span><span class="p">)</span></td>
+<td class="source"><a href="#l25" id="l25">    25</a> <span class="kn">if</span> <span class="n">__name__</span> <span class="o">==</span> <span class="s">&quot;__main__&quot;</span><span class="p">:</span></td>
 </tr>
 <tr class="parity1">
 <td class="annotate">
-<a href="/annotate/93b701795893/get-with-headers.py#26"
-title="93b701795893: a">test@0</a>
+<a href="/annotate/3e1445510fe7/primes.py#26"
+title="3e1445510fe7: a">test@0</a>
 </td>
-<td class="source"><a href="#l26" id="l26">    26</a> <span class="n">sys</span><span class="o">.</span><span class="n">stdout</span><span class="o">.</span><span class="n">write</span><span class="p">(</span><span class="n">data</span><span class="p">)</span></td>
+<td class="source"><a href="#l26" id="l26">    26</a>     <span class="kn">import</span> <span class="nn">sys</span></td>
 </tr>
 <tr class="parity0">
 <td class="annotate">
-<a href="/annotate/93b701795893/get-with-headers.py#27"
-title="93b701795893: a">test@0</a>
+<a href="/annotate/3e1445510fe7/primes.py#27"
+title="3e1445510fe7: a">test@0</a>
 </td>
-<td class="source"><a href="#l27" id="l27">    27</a> </td>
+<td class="source"><a href="#l27" id="l27">    27</a>     <span class="kn">try</span><span class="p">:</span></td>
 </tr>
 <tr class="parity1">
 <td class="annotate">
-<a href="/annotate/93b701795893/get-with-headers.py#28"
-title="93b701795893: a">test@0</a>
+<a href="/annotate/3e1445510fe7/primes.py#28"
+title="3e1445510fe7: a">test@0</a>
 </td>
-<td class="source"><a href="#l28" id="l28">    28</a> <span class="kn">if</span> <span class="mf">200</span> <span class="o">&lt;=</span> <span class="n">response</span><span class="o">.</span><span class="n">status</span> <span class="o">&lt;=</span> <span class="mf">299</span><span class="p">:</span></td>
+<td class="source"><a href="#l28" id="l28">    28</a>         <span class="n">n</span> <span class="o">=</span> <span class="nb">int</span><span class="p">(</span><span class="n">sys</span><span class="o">.</span><span class="n">argv</span><span class="p">[</span><span class="mf">1</span><span class="p">])</span></td>
 </tr>
 <tr class="parity0">
 <td class="annotate">
-<a href="/annotate/93b701795893/get-with-headers.py#29"
-title="93b701795893: a">test@0</a>
+<a href="/annotate/3e1445510fe7/primes.py#29"
+title="3e1445510fe7: a">test@0</a>
 </td>
-<td class="source"><a href="#l29" id="l29">    29</a>     <span class="n">sys</span><span class="o">.</span><span class="n">exit</span><span class="p">(</span><span class="mf">0</span><span class="p">)</span></td>
+<td class="source"><a href="#l29" id="l29">    29</a>     <span class="kn">except</span> <span class="p">(</span><span class="ne">ValueError</span><span class="p">,</span> <span class="ne">IndexError</span><span class="p">):</span></td>
 </tr>
 <tr class="parity1">
 <td class="annotate">
-<a href="/annotate/93b701795893/get-with-headers.py#30"
-title="93b701795893: a">test@0</a>
+<a href="/annotate/3e1445510fe7/primes.py#30"
+title="3e1445510fe7: a">test@0</a>
 </td>
-<td class="source"><a href="#l30" id="l30">    30</a> <span class="n">sys</span><span class="o">.</span><span class="n">exit</span><span class="p">(</span><span class="mf">1</span><span class="p">)</span></td>
+<td class="source"><a href="#l30" id="l30">    30</a>         <span class="n">n</span> <span class="o">=</span> <span class="mf">10</span></td>
+</tr>
+<tr class="parity0">
+<td class="annotate">
+<a href="/annotate/3e1445510fe7/primes.py#31"
+title="3e1445510fe7: a">test@0</a>
+</td>
+<td class="source"><a href="#l31" id="l31">    31</a>     <span class="n">p</span> <span class="o">=</span> <span class="n">primes</span><span class="p">()</span></td>
+</tr>
+<tr class="parity1">
+<td class="annotate">
+<a href="/annotate/3e1445510fe7/primes.py#32"
+title="3e1445510fe7: a">test@0</a>
+</td>
+<td class="source"><a href="#l32" id="l32">    32</a>     <span class="kn">print</span> <span class="s">&quot;The first </span><span class="si">%d</span><span class="s"> primes: </span><span class="si">%s</span><span class="s">&quot;</span> <span class="o">%</span> <span class="p">(</span><span class="n">n</span><span class="p">,</span> <span class="nb">list</span><span class="p">(</span><span class="n">islice</span><span class="p">(</span><span class="n">p</span><span class="p">,</span> <span class="n">n</span><span class="p">)))</span></td>
 </tr>
 </table>
 </div>
mercurial