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I only need a path
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Upload some files
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<a href="https://github.com/schmelczer/great-ai/edit/main/docs/open_s3.md" title="Edit this page" class="md-content__button md-icon">
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<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20.71 7.04c.39-.39.39-1.04 0-1.41l-2.34-2.34c-.37-.39-1.02-.39-1.41 0l-1.84 1.83 3.75 3.75M3 17.25V21h3.75L17.81 9.93l-3.75-3.75L3 17.25Z"/></svg>
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<h1 id="opens3"><a href="https://pypi.org/project/open-large/">open(S3)</a><a class="headerlink" href="#opens3" title="Permanent link">#</a></h1>
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<p>Storing, versioning, and downloading files from S3 made as easy as using <code>open()</code> in Python. Caching included.</p>
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<h2 id="motivation">Motivation<a class="headerlink" href="#motivation" title="Permanent link">#</a></h2>
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<p>Oftentimes, especially when working with data-heavy applications, large files can proliferate in a repository. Version controlling them is an obvious next step, however, GitHub's git LFS implementation <a href="https://docs.github.com/en/repositories/working-with-files/managing-large-files/removing-files-from-git-large-file-storage#git-lfs-objects-in-your-repository">doesn't support the deletion</a> of large files, making it easy for them to eat-up the LFS quota and explode the size of your repos.</p>
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<h2 id="solution">Solution<a class="headerlink" href="#solution" title="Permanent link">#</a></h2>
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<div class="highlight"><pre><span></span><code><a id="__codelineno-0-1" name="__codelineno-0-1" href="#__codelineno-0-1"></a>pip install open-large
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</code></pre></div>
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<h3 id="simple-example">Simple example<a class="headerlink" href="#simple-example" title="Permanent link">#</a></h3>
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<div class="highlight"><pre><span></span><code><a id="__codelineno-1-1" name="__codelineno-1-1" href="#__codelineno-1-1"></a><span class="kn">from</span> <span class="nn">great_ai.large_file</span> <span class="kn">import</span> <span class="n">LargeFileS3</span>
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<a id="__codelineno-1-2" name="__codelineno-1-2" href="#__codelineno-1-2"></a>
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<a id="__codelineno-1-3" name="__codelineno-1-3" href="#__codelineno-1-3"></a><span class="n">LargeFileS3</span><span class="o">.</span><span class="n">configure_credentials</span><span class="p">({</span>
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<a id="__codelineno-1-4" name="__codelineno-1-4" href="#__codelineno-1-4"></a> <span class="s2">"aws_region_name"</span><span class="p">:</span> <span class="s2">"your_region_like_eu-west-2"</span><span class="p">,</span>
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<a id="__codelineno-1-5" name="__codelineno-1-5" href="#__codelineno-1-5"></a> <span class="s2">"aws_access_key_id"</span><span class="p">:</span> <span class="s2">"YOUR_ACCESS_KEY_ID"</span><span class="p">,</span>
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<a id="__codelineno-1-6" name="__codelineno-1-6" href="#__codelineno-1-6"></a> <span class="s2">"aws_secret_access_key"</span><span class="p">:</span> <span class="s2">"YOUR_VERY_SECRET_ACCESS_KEY"</span><span class="p">,</span>
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<a id="__codelineno-1-7" name="__codelineno-1-7" href="#__codelineno-1-7"></a> <span class="s2">"large_files_bucket_name"</span><span class="p">:</span> <span class="s2">"create_a_bucket_and_put_its_name_here"</span><span class="p">,</span>
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<a id="__codelineno-1-8" name="__codelineno-1-8" href="#__codelineno-1-8"></a><span class="p">})</span>
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<a id="__codelineno-1-9" name="__codelineno-1-9" href="#__codelineno-1-9"></a>
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<a id="__codelineno-1-10" name="__codelineno-1-10" href="#__codelineno-1-10"></a><span class="c1"># Creates a new version and deletes the older version leaving the 3 most recently used intact</span>
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<a id="__codelineno-1-11" name="__codelineno-1-11" href="#__codelineno-1-11"></a><span class="k">with</span> <span class="n">LargeFileS3</span><span class="p">(</span><span class="s2">"test.txt"</span><span class="p">,</span> <span class="s2">"w"</span><span class="p">,</span> <span class="n">keep_last_n</span><span class="o">=</span><span class="mi">3</span><span class="p">)</span> <span class="k">as</span> <span class="n">f</span><span class="p">:</span>
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<a id="__codelineno-1-12" name="__codelineno-1-12" href="#__codelineno-1-12"></a> <span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="mi">100000</span><span class="p">):</span>
|
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<a id="__codelineno-1-13" name="__codelineno-1-13" href="#__codelineno-1-13"></a> <span class="n">f</span><span class="o">.</span><span class="n">write</span><span class="p">(</span><span class="s1">'test</span><span class="se">\n</span><span class="s1">'</span><span class="p">)</span>
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<a id="__codelineno-1-14" name="__codelineno-1-14" href="#__codelineno-1-14"></a>
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<a id="__codelineno-1-15" name="__codelineno-1-15" href="#__codelineno-1-15"></a><span class="c1"># By default the latest version is returned</span>
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<a id="__codelineno-1-16" name="__codelineno-1-16" href="#__codelineno-1-16"></a><span class="c1"># but an optional `version` keyword argument can be provided as well</span>
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<a id="__codelineno-1-17" name="__codelineno-1-17" href="#__codelineno-1-17"></a><span class="k">with</span> <span class="n">LargeFileS3</span><span class="p">(</span><span class="s2">"test.txt"</span><span class="p">,</span> <span class="s2">"r"</span><span class="p">)</span> <span class="k">as</span> <span class="n">f</span><span class="p">:</span>
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<a id="__codelineno-1-18" name="__codelineno-1-18" href="#__codelineno-1-18"></a> <span class="nb">print</span><span class="p">(</span><span class="n">f</span><span class="o">.</span><span class="n">readlines</span><span class="p">()[</span><span class="mi">0</span><span class="p">])</span>
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</code></pre></div>
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<blockquote>
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<p>Automatically creates a file, writes to it, uploads it to S3, and then queries the most recent version of it.
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In this case, the latest version is already in the local cache, no download is required.</p>
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</blockquote>
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<h3 id="more-details">More details<a class="headerlink" href="#more-details" title="Permanent link">#</a></h3>
|
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<p><code>LargeFile</code> behaves like an opened file (in the background it is a temp file after all). Binary reading and writing is supported along with the <a href="https://docs.python.org/3/library/functions.html#open">different keywords</a> <code>open()</code> accepts.</p>
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<p>The local cache can be configured with these properties:</p>
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<div class="highlight"><pre><span></span><code><a id="__codelineno-2-1" name="__codelineno-2-1" href="#__codelineno-2-1"></a><span class="n">LargeFile</span><span class="o">.</span><span class="n">cache_path</span> <span class="o">=</span> <span class="n">Path</span><span class="p">(</span><span class="s1">'.cache'</span><span class="p">)</span>
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<a id="__codelineno-2-2" name="__codelineno-2-2" href="#__codelineno-2-2"></a><span class="n">LargeFile</span><span class="o">.</span><span class="n">max_cache_size</span> <span class="o">=</span> <span class="s2">"30 GB"</span>
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</code></pre></div>
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<h4 id="i-only-need-a-path">I only need a path<a class="headerlink" href="#i-only-need-a-path" title="Permanent link">#</a></h4>
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<p>In case you only need a path to the "remote" file, this pattern can be applied:</p>
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<div class="highlight"><pre><span></span><code><a id="__codelineno-3-1" name="__codelineno-3-1" href="#__codelineno-3-1"></a><span class="n">path_to_model</span> <span class="o">=</span> <span class="n">LargeFile</span><span class="p">(</span><span class="s2">"folder-of-my-bert-model"</span><span class="p">,</span> <span class="n">version</span><span class="o">=</span><span class="mi">31</span><span class="p">)</span><span class="o">.</span><span class="n">get</span><span class="p">()</span>
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</code></pre></div>
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<blockquote>
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<p>This will first download the file/folder into your local cache folder. Then, it returns a <code>Path</code> object to the local version. Which can be turned into a string with <code>str(path_to_model)</code>.</p>
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</blockquote>
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<p>The same approach works for uploads:</p>
|
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<div class="highlight"><pre><span></span><code><a id="__codelineno-4-1" name="__codelineno-4-1" href="#__codelineno-4-1"></a><span class="n">LargeFile</span><span class="p">(</span><span class="s2">"folder-of-my-bert-model"</span><span class="p">)</span><span class="o">.</span><span class="n">push</span><span class="p">(</span><span class="s1">'path_to_local/folder_or_file'</span><span class="p">)</span>
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</code></pre></div>
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<blockquote>
|
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<p>This way, both regular files and folders can be handled. The uploaded file is called <strong>folder-of-my-bert-model</strong>, the local name is ignored.</p>
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</blockquote>
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<p>Lastly, all version of the remote object can be deleted by calling <code>LargeFile("my-file").delete()</code>. It will still reside in your local cache afterwards, its deletion will happen next time your local cache has to be pruned.</p>
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<h3 id="command-line-example">Command-line example<a class="headerlink" href="#command-line-example" title="Permanent link">#</a></h3>
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<p>The package can be used as a module from the command-line to give you more flexibility.</p>
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<h4 id="setup">Setup<a class="headerlink" href="#setup" title="Permanent link">#</a></h4>
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<p>Create an .ini file (or use <em>~/.aws/credentials</em>). It may look like this:</p>
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<div class="highlight"><pre><span></span><code><a id="__codelineno-5-1" name="__codelineno-5-1" href="#__codelineno-5-1"></a><span class="na">aws_region_name</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="s">your_region_like_eu-west-2</span><span class="w"></span>
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<a id="__codelineno-5-2" name="__codelineno-5-2" href="#__codelineno-5-2"></a><span class="na">aws_access_key_id</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="s">YOUR_ACCESS_KEY_ID</span><span class="w"></span>
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<a id="__codelineno-5-3" name="__codelineno-5-3" href="#__codelineno-5-3"></a><span class="na">aws_secret_access_key</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="s">YOUR_VERY_SECRET_ACCESS_KEY</span><span class="w"></span>
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<a id="__codelineno-5-4" name="__codelineno-5-4" href="#__codelineno-5-4"></a><span class="na">large_files_bucket_name</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="s">my_large_files</span><span class="w"></span>
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<a id="__codelineno-5-5" name="__codelineno-5-5" href="#__codelineno-5-5"></a><span class="na">endpoint_url</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="s">this is optional, for backblaze, use this: https://s3.us-west-002.backblazeb2.com</span><span class="w"></span>
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</code></pre></div>
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<blockquote>
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<p>Just like in <a href="example_secrets.ini">example secrets</a>.</p>
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</blockquote>
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<h4 id="print-the-expected-options">Print the expected options<a class="headerlink" href="#print-the-expected-options" title="Permanent link">#</a></h4>
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<div class="highlight"><pre><span></span><code><a id="__codelineno-6-1" name="__codelineno-6-1" href="#__codelineno-6-1"></a>python3 -m large_file --help
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</code></pre></div>
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<h4 id="upload-some-files">Upload some files<a class="headerlink" href="#upload-some-files" title="Permanent link">#</a></h4>
|
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<div class="highlight"><pre><span></span><code><a id="__codelineno-7-1" name="__codelineno-7-1" href="#__codelineno-7-1"></a>python3 -m large_file --backend s3 --secrets secrets.ini --push my_first_file.json folder/my_second_file my_folder
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</code></pre></div>
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<blockquote>
|
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<p>Only the filename is used as the S3 name, the rest of the path is ignored.</p>
|
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</blockquote>
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<h4 id="download-some-files-to-the-local-cache">Download some files to the local cache<a class="headerlink" href="#download-some-files-to-the-local-cache" title="Permanent link">#</a></h4>
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<p>This can be useful when building a Docker image for example. This way, the files can already reside inside the container and need not be downloaded later.</p>
|
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<div class="highlight"><pre><span></span><code><a id="__codelineno-8-1" name="__codelineno-8-1" href="#__codelineno-8-1"></a>python3 -m large_file --backend s3 -secrets ~/.aws/credentials --cache my_first_file.json:3 my_second_file my_folder:0
|
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</code></pre></div>
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<blockquote>
|
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<p>Versions may be specified by using <code>:</code>-s.</p>
|
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</blockquote>
|
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<h4 id="delete-remote-files">Delete remote files<a class="headerlink" href="#delete-remote-files" title="Permanent link">#</a></h4>
|
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<div class="highlight"><pre><span></span><code><a id="__codelineno-9-1" name="__codelineno-9-1" href="#__codelineno-9-1"></a>python3 -m large_file --backend s3 --secrets ~/.aws/credentials --delete my_first_file.json
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</code></pre></div>
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