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<h1>Source code for TermTk.TTkWidgets.TTkModelView.tablemodelcsv</h1><div class="highlight"><pre>
<span></span><span class="c1"># MIT License</span>
<span class="c1">#</span>
<span class="c1"># Copyright (c) 2024 Eugenio Parodi &lt;ceccopierangiolieugenio AT googlemail DOT com&gt;</span>
<span class="c1">#</span>
<span class="c1"># Permission is hereby granted, free of charge, to any person obtaining a copy</span>
<span class="c1"># of this software and associated documentation files (the &quot;Software&quot;), to deal</span>
<span class="c1"># in the Software without restriction, including without limitation the rights</span>
<span class="c1"># to use, copy, modify, merge, publish, distribute, sublicense, and/or sell</span>
<span class="c1"># copies of the Software, and to permit persons to whom the Software is</span>
<span class="c1"># furnished to do so, subject to the following conditions:</span>
<span class="c1">#</span>
<span class="c1"># The above copyright notice and this permission notice shall be included in all</span>
<span class="c1"># copies or substantial portions of the Software.</span>
<span class="c1">#</span>
<span class="c1"># THE SOFTWARE IS PROVIDED &quot;AS IS&quot;, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR</span>
<span class="c1"># IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,</span>
<span class="c1"># FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE</span>
<span class="c1"># AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER</span>
<span class="c1"># LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,</span>
<span class="c1"># OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE</span>
<span class="c1"># SOFTWARE.</span>
<span class="n">__all__</span><span class="o">=</span><span class="p">[</span><span class="s1">&#39;TTkTableModelCSV&#39;</span><span class="p">]</span>
<span class="kn">import</span> <span class="nn">csv</span>
<span class="kn">from</span> <span class="nn">TermTk.TTkCore.constant</span> <span class="kn">import</span> <span class="n">TTkK</span>
<span class="kn">from</span> <span class="nn">TermTk.TTkWidgets.TTkModelView.tablemodellist</span> <span class="kn">import</span> <span class="n">TTkTableModelList</span>
<div class="viewcode-block" id="TTkTableModelCSV"><a class="viewcode-back" href="../../../../autogen.TermTk/TermTk.TTkWidgets.TTkModelView.tablemodelcsv.html#TermTk.TTkWidgets.TTkModelView.tablemodelcsv.TTkTableModelCSV">[docs]</a><span class="k">class</span> <span class="nc">TTkTableModelCSV</span><span class="p">(</span><span class="n">TTkTableModelList</span><span class="p">):</span>
<span class="sd">&#39;&#39;&#39;</span>
<span class="sd"> :class:`TTkTableModelCSV` extends :class:`~TermTk.TTkWidgets.TTkModelView.tablemodellist.TTkTableModelList` with cvs loading helpers.</span>
<span class="sd"> You can address the csv file through the Filename (filename) or the FileDescriptor (fd).</span>
<span class="sd"> ::</span>
<span class="sd"> import TermTk as ttk</span>
<span class="sd"> # TableModel from csv filename</span>
<span class="sd"> tm1 = ttk.TTkTableModelCSV(filename=&#39;path/file.csv&#39;)</span>
<span class="sd"> # TableModel from csv FileDescriptor</span>
<span class="sd"> with open(&#39;path/file.csv&#39;) as fd:</span>
<span class="sd"> tm2 = ttk.TTkTableModelCSV(fd=fd)</span>
<span class="sd"> :param filename: the csv filename, if missing the file descriptor is used instead.</span>
<span class="sd"> :type filename: str, optional</span>
<span class="sd"> :param fd: the FileDescriptor</span>
<span class="sd"> :type fd: io, optional</span>
<span class="sd"> &#39;&#39;&#39;</span>
<span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="o">*</span><span class="p">,</span> <span class="n">filename</span><span class="p">:</span><span class="nb">str</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">fd</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
<span class="n">data</span><span class="p">,</span> <span class="n">head</span><span class="p">,</span> <span class="n">idx</span> <span class="o">=</span> <span class="p">[[]],</span> <span class="p">[],</span> <span class="p">[]</span>
<span class="k">if</span> <span class="n">filename</span><span class="p">:</span>
<span class="k">with</span> <span class="nb">open</span><span class="p">(</span><span class="n">filename</span><span class="p">,</span> <span class="s2">&quot;r&quot;</span><span class="p">)</span> <span class="k">as</span> <span class="n">fd</span><span class="p">:</span>
<span class="n">data</span><span class="p">,</span> <span class="n">head</span><span class="p">,</span> <span class="n">idx</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_csvImport</span><span class="p">(</span><span class="n">fd</span><span class="p">)</span>
<span class="k">elif</span> <span class="n">fd</span><span class="p">:</span>
<span class="n">data</span><span class="p">,</span> <span class="n">head</span><span class="p">,</span> <span class="n">idx</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_csvImport</span><span class="p">(</span><span class="n">fd</span><span class="p">)</span>
<span class="nb">super</span><span class="p">()</span><span class="o">.</span><span class="fm">__init__</span><span class="p">(</span><span class="n">data</span><span class="o">=</span><span class="n">data</span><span class="p">,</span><span class="n">header</span><span class="o">=</span><span class="n">head</span><span class="p">,</span><span class="n">indexes</span><span class="o">=</span><span class="n">idx</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">_csvImport</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">fd</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="nb">tuple</span><span class="p">[</span><span class="nb">list</span><span class="p">,</span><span class="nb">list</span><span class="p">,</span><span class="nb">list</span><span class="p">[</span><span class="nb">list</span><span class="p">]]:</span>
<span class="n">data</span><span class="p">,</span> <span class="n">head</span><span class="p">,</span> <span class="n">idx</span> <span class="o">=</span> <span class="p">[],</span> <span class="p">[],</span> <span class="p">[]</span>
<span class="n">sniffer</span> <span class="o">=</span> <span class="n">csv</span><span class="o">.</span><span class="n">Sniffer</span><span class="p">()</span>
<span class="n">has_header</span> <span class="o">=</span> <span class="n">sniffer</span><span class="o">.</span><span class="n">has_header</span><span class="p">(</span><span class="n">fd</span><span class="o">.</span><span class="n">read</span><span class="p">(</span><span class="mi">2048</span><span class="p">))</span>
<span class="n">fd</span><span class="o">.</span><span class="n">seek</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span>
<span class="n">csvreader</span> <span class="o">=</span> <span class="n">csv</span><span class="o">.</span><span class="n">reader</span><span class="p">(</span><span class="n">fd</span><span class="p">)</span>
<span class="k">for</span> <span class="n">row</span> <span class="ow">in</span> <span class="n">csvreader</span><span class="p">:</span>
<span class="n">data</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">row</span><span class="p">)</span>
<span class="k">if</span> <span class="n">has_header</span><span class="p">:</span>
<span class="n">head</span> <span class="o">=</span> <span class="n">data</span><span class="o">.</span><span class="n">pop</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span>
<span class="c1"># check if the first column include an index:</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">_checkIndexColumn</span><span class="p">(</span><span class="n">data</span><span class="p">):</span>
<span class="n">head</span><span class="o">.</span><span class="n">pop</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span>
<span class="k">for</span> <span class="n">l</span> <span class="ow">in</span> <span class="n">data</span><span class="p">:</span>
<span class="n">idx</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">l</span><span class="o">.</span><span class="n">pop</span><span class="p">(</span><span class="mi">0</span><span class="p">))</span>
<span class="k">return</span> <span class="n">data</span><span class="p">,</span> <span class="n">head</span><span class="p">,</span> <span class="n">idx</span>
<span class="k">def</span> <span class="nf">_checkIndexColumn</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">data</span><span class="p">:</span><span class="nb">list</span><span class="p">[</span><span class="nb">list</span><span class="p">])</span> <span class="o">-&gt;</span> <span class="nb">bool</span><span class="p">:</span>
<span class="k">if</span> <span class="nb">all</span><span class="p">(</span><span class="n">l</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="o">.</span><span class="n">isdigit</span><span class="p">()</span> <span class="k">for</span> <span class="n">l</span> <span class="ow">in</span> <span class="n">data</span><span class="p">):</span>
<span class="n">num</span> <span class="o">=</span> <span class="nb">int</span><span class="p">(</span><span class="n">data</span><span class="p">[</span><span class="mi">0</span><span class="p">][</span><span class="mi">0</span><span class="p">])</span>
<span class="k">return</span> <span class="nb">all</span><span class="p">(</span><span class="n">num</span><span class="o">+</span><span class="n">i</span><span class="o">==</span><span class="nb">int</span><span class="p">(</span><span class="n">l</span><span class="p">[</span><span class="mi">0</span><span class="p">])</span> <span class="k">for</span> <span class="n">i</span><span class="p">,</span><span class="n">l</span> <span class="ow">in</span> <span class="nb">enumerate</span><span class="p">(</span><span class="n">data</span><span class="p">))</span>
<span class="k">return</span> <span class="kc">False</span></div>
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