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docs/1.0-dev/Coding/Flat-API.html
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@ -14,6 +14,8 @@
<script src="../_static/underscore.js"></script>
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@ -38,31 +40,29 @@
<div class="bodywrapper">
<div class="body" role="main">
<section id="things-to-remember-about-the-flat-api">
<section class="tex2jax_ignore mathjax_ignore" id="things-to-remember-about-the-flat-api">
<h1>Things to remember about the flat API<a class="headerlink" href="#things-to-remember-about-the-flat-api" title="Permalink to this headline"></a></h1>
<p>The flat API is a series of ‘shortcuts’ on the <code class="docutils literal notranslate"><span class="pre">evennia</span></code> main library root (defined in
<code class="docutils literal notranslate"><span class="pre">evennia/__init__.py</span></code>). Its componentas are documented <a class="reference internal" href="../Evennia-API.html"><span class="doc">as part of the auto-documentation</span></a>.</p>
<code class="docutils literal notranslate"><span class="pre">evennia/__init__.py</span></code>). Its componentas are documented <a class="reference internal" href="../Evennia-API.html"><span class="doc std std-doc">as part of the auto-documentation</span></a>.</p>
<section id="to-remember-when-importing-from-evennia">
<h2>To remember when importing from <code class="docutils literal notranslate"><span class="pre">evennia</span></code><a class="headerlink" href="#to-remember-when-importing-from-evennia" title="Permalink to this headline"></a></h2>
<p>Properties on the root of the <code class="docutils literal notranslate"><span class="pre">evennia</span></code> package are <em>not</em> modules in their own right. They are just
shortcut properties stored in the <code class="docutils literal notranslate"><span class="pre">evennia/__init__.py</span></code> module. That means that you cannot use dot-
notation to <code class="docutils literal notranslate"><span class="pre">import</span></code> nested module-names over <code class="docutils literal notranslate"><span class="pre">evennia</span></code>. The rule of thumb is that you cannot use
<code class="docutils literal notranslate"><span class="pre">import</span></code> for more than one level down. Hence you can do</p>
<div class="highlight-python notranslate"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><span class="normal">1</span>
<span class="normal">2</span></pre></div></td><td class="code"><div class="highlight"><pre><span></span> <span class="kn">import</span> <span class="nn">evennia</span>
<div class="highlight-python notranslate"><div class="highlight"><pre><span></span> <span class="kn">import</span> <span class="nn">evennia</span>
<span class="nb">print</span><span class="p">(</span><span class="n">evennia</span><span class="o">.</span><span class="n">default_cmds</span><span class="o">.</span><span class="n">CmdLook</span><span class="p">)</span>
</pre></div>
</td></tr></table></div>
</div>
<p>or import one level down</p>
<div class="highlight-python notranslate"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><span class="normal">1</span>
<span class="normal">2</span></pre></div></td><td class="code"><div class="highlight"><pre><span></span> <span class="kn">from</span> <span class="nn">evennia</span> <span class="kn">import</span> <span class="n">default_cmds</span>
<div class="highlight-python notranslate"><div class="highlight"><pre><span></span> <span class="kn">from</span> <span class="nn">evennia</span> <span class="kn">import</span> <span class="n">default_cmds</span>
<span class="nb">print</span><span class="p">(</span><span class="n">default_cmds</span><span class="o">.</span><span class="n">CmdLook</span><span class="p">)</span>
</pre></div>
</td></tr></table></div>
</div>
<p>but you <em>cannot</em> import two levels down</p>
<div class="highlight-python notranslate"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><span class="normal">1</span></pre></div></td><td class="code"><div class="highlight"><pre><span></span> <span class="kn">from</span> <span class="nn">evennia.default_cmds</span> <span class="kn">import</span> <span class="n">CmdLook</span> <span class="c1"># error!</span>
<div class="highlight-python notranslate"><div class="highlight"><pre><span></span> <span class="kn">from</span> <span class="nn">evennia.default_cmds</span> <span class="kn">import</span> <span class="n">CmdLook</span> <span class="c1"># error!</span>
</pre></div>
</td></tr></table></div>
</div>
<p>This will give you an <code class="docutils literal notranslate"><span class="pre">ImportError</span></code> telling you that the module <code class="docutils literal notranslate"><span class="pre">default_cmds</span></code> cannot be found -
this is becasue <code class="docutils literal notranslate"><span class="pre">default_cmds</span></code> is just a <em>variable</em> stored in <code class="docutils literal notranslate"><span class="pre">evennia.__init__.py</span></code>; this cannot be
imported from. If you really want full control over which level of package you import you can always
@ -121,7 +121,7 @@ package imports from.</p>
<h3>Versions</h3>
<ul>
<li><a href="Flat-API.html">1.0-dev (develop branch)</a></li>
<li><a href="../../0.9.5/index.html">0.9.5 (v0.9.5 branch)</a></li>
<li><a href="../../0.95/index.html">0.95 (v0.9.5 branch)</a></li>
</ul>
</div>