http://code.activestate.com/recipes/tags/decompression/views/2016-03-17T12:22:10-07:00ActiveState Code Recipes2009-01-04T04:11:37-08:00Shao-chuan Wanghttp://code.activestate.com/recipes/users/4168519/http://code.activestate.com/recipes/576603-huffman-coding-encoderdeconder/

<p style="color: grey"> Python recipe 576603 by <a href="/recipes/users/4168519/">Shao-chuan Wang</a> (<a href="/recipes/tags/algorithm/">algorithm</a>, <a href="/recipes/tags/compression/">compression</a>, <a href="/recipes/tags/decompression/">decompression</a>, <a href="/recipes/tags/huffman_code/">huffman_code</a>). Revision 2. </p> <p>Please refer to wikipedia: <a href="http://en.wikipedia.org/wiki/Huffman_coding" rel="nofollow">http://en.wikipedia.org/wiki/Huffman_coding</a></p> <p>Huffman coding is an entropy encoding algorithm used for lossless data compression. The term refers to the use of a variable-length code table for encoding a source symbol (such as a character in a file) where the variable-length code table has been derived in a particular way based on the estimated probability of occurrence for each possible value of the source symbol. It was developed by David A. Huffman while he was a Ph.D. student at MIT, and published in the 1952 paper "A Method for the Construction of Minimum-Redundancy Codes".</p>

2016-03-17T12:22:10-07:00Harald Liederhttp://code.activestate.com/recipes/users/4191581/http://code.activestate.com/recipes/580627-decrypt-a-pdf-using-fitz-mupdf-pymupdf/

<p style="color: grey"> Python recipe 580627 by <a href="/recipes/users/4191581/">Harald Lieder</a> (<a href="/recipes/tags/decompression/">decompression</a>, <a href="/recipes/tags/decryption/">decryption</a>, <a href="/recipes/tags/pdf/">pdf</a>, <a href="/recipes/tags/repair/">repair</a>). </p> <p>It's more a code snippet. Shows how to dynamically check whether a PDF is password protected. If it is, decrypt it and save it back to disk un-encrypted.</p>

2015-06-30T03:31:31-07:00Vovanhttp://code.activestate.com/recipes/users/4192447/http://code.activestate.com/recipes/579075-de-chunk-and-decompress-http-body/

<p style="color: grey"> Python recipe 579075 by <a href="/recipes/users/4192447/">Vovan</a> (<a href="/recipes/tags/chunked/">chunked</a>, <a href="/recipes/tags/content/">content</a>, <a href="/recipes/tags/dechunking/">dechunking</a>, <a href="/recipes/tags/decompression/">decompression</a>, <a href="/recipes/tags/encoding/">encoding</a>, <a href="/recipes/tags/http/">http</a>, <a href="/recipes/tags/preprocess/">preprocess</a>, <a href="/recipes/tags/transfer/">transfer</a>). Revision 2. </p> <p>Example read_body_stream() usage:</p> <pre class="prettyprint"><code>with open(http_file_path, 'rb') as fh: print(b''.join(httputil.read_body_stream( fh, chunked=True, compression=httputil.GZIP)) </code></pre>