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Python 3

keep unique lines, not necesarily consecutive (cf. uniq)

#!/usr/bin/python

import sys

history = set()
for line in sys.stdin:
    if line in history:
        continue
    history.add(line)
    print line,
https://snipt.net/embed/70e9d0202157462b1909df4a5c1ed844/
/raw/70e9d0202157462b1909df4a5c1ed844/
70e9d0202157462b1909df4a5c1ed844
python3
Python 3
11
2019-07-16T10:03:08
True
False
False
/api/public/snipt/4743/
keep-unique-lines-not-necesarily-consecutive-cf-uniq
<table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><a href="#L-1"> 1</a> <a href="#L-2"> 2</a> <a href="#L-3"> 3</a> <a href="#L-4"> 4</a> <a href="#L-5"> 5</a> <a href="#L-6"> 6</a> <a href="#L-7"> 7</a> <a href="#L-8"> 8</a> <a href="#L-9"> 9</a> <a href="#L-10">10</a></pre></div></td><td class="code"><div class="highlight"><pre><span></span><span id="L-1"><a name="L-1"></a><span class="ch">#!/usr/bin/python</span> </span><span id="L-2"><a name="L-2"></a> </span><span id="L-3"><a name="L-3"></a><span class="kn">import</span> <span class="nn">sys</span> </span><span id="L-4"><a name="L-4"></a> </span><span id="L-5"><a name="L-5"></a><span class="n">history</span> <span class="o">=</span> <span class="nb">set</span><span class="p">()</span> </span><span id="L-6"><a name="L-6"></a><span class="k">for</span> <span class="n">line</span> <span class="ow">in</span> <span class="n">sys</span><span class="o">.</span><span class="n">stdin</span><span class="p">:</span> </span><span id="L-7"><a name="L-7"></a> <span class="k">if</span> <span class="n">line</span> <span class="ow">in</span> <span class="n">history</span><span class="p">:</span> </span><span id="L-8"><a name="L-8"></a> <span class="k">continue</span> </span><span id="L-9"><a name="L-9"></a> <span class="n">history</span><span class="o">.</span><span class="n">add</span><span class="p">(</span><span class="n">line</span><span class="p">)</span> </span><span id="L-10"><a name="L-10"></a> <span class="nb">print</span> <span class="n">line</span><span class="p">,</span> </span></pre></div> </td></tr></table>
processing, python, text, uniq, unique