sh_cpl/docs/build/html/quickstart.html

416 lines
21 KiB
HTML
Raw Normal View History

2021-12-02 08:20:38 +01:00
2021-05-17 18:32:09 +02:00
<!DOCTYPE html>
<html class="writer-html5" lang="en" >
<head>
<meta charset="utf-8" />
2021-12-02 08:20:38 +01:00
2021-05-17 18:32:09 +02:00
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
2021-12-02 08:20:38 +01:00
2021-05-17 18:32:09 +02:00
<title>Getting started with CPL &mdash; Common Python Library documentation</title>
2021-12-02 08:20:38 +01:00
<link rel="stylesheet" href="_static/css/theme.css" type="text/css" />
<link rel="stylesheet" href="_static/pygments.css" type="text/css" />
2021-05-17 18:32:09 +02:00
<!--[if lt IE 9]>
<script src="_static/js/html5shiv.min.js"></script>
<![endif]-->
2021-12-02 08:20:38 +01:00
<script type="text/javascript" id="documentation_options" data-url_root="./" src="_static/documentation_options.js"></script>
2021-05-17 18:32:09 +02:00
<script src="_static/jquery.js"></script>
<script src="_static/underscore.js"></script>
<script src="_static/doctools.js"></script>
2021-12-02 08:20:38 +01:00
<script type="text/javascript" src="_static/js/theme.js"></script>
2021-05-17 18:32:09 +02:00
<link rel="index" title="Index" href="genindex.html" />
<link rel="search" title="Search" href="search.html" />
<link rel="next" title="Setting up the local environment and workspace" href="setup.html" />
<link rel="prev" title="Getting started" href="getting_started.html" />
</head>
2021-12-02 08:20:38 +01:00
<body class="wy-body-for-nav">
2021-05-17 18:32:09 +02:00
<div class="wy-grid-for-nav">
2021-12-02 08:20:38 +01:00
2021-05-17 18:32:09 +02:00
<nav data-toggle="wy-nav-shift" class="wy-nav-side">
<div class="wy-side-scroll">
<div class="wy-side-nav-search" >
2021-12-02 08:20:38 +01:00
2021-05-17 18:32:09 +02:00
<a href="index.html" class="icon icon-home"> Common Python Library
2021-12-02 08:20:38 +01:00
2021-05-17 18:32:09 +02:00
</a>
2021-12-02 08:20:38 +01:00
2021-05-17 18:32:09 +02:00
<div role="search">
<form id="rtd-search-form" class="wy-form" action="search.html" method="get">
<input type="text" name="q" placeholder="Search docs" />
<input type="hidden" name="check_keywords" value="yes" />
<input type="hidden" name="area" value="default" />
</form>
</div>
2021-12-02 08:20:38 +01:00
</div>
<div class="wy-menu wy-menu-vertical" data-spy="affix" role="navigation" aria-label="main navigation">
2021-05-17 18:32:09 +02:00
<ul class="current">
<li class="toctree-l1"><a class="reference internal" href="introduction.html">Introduction to the CPL Docs</a></li>
<li class="toctree-l1 current"><a class="reference internal" href="getting_started.html">Getting started</a><ul class="current">
<li class="toctree-l2 current"><a class="current reference internal" href="#">Getting started with CPL</a><ul>
<li class="toctree-l3"><a class="reference internal" href="#table-of-contents">Table of Contents</a></li>
<li class="toctree-l3"><a class="reference internal" href="#prerequisites">Prerequisites</a></li>
<li class="toctree-l3"><a class="reference internal" href="#create-the-project">Create the project</a></li>
<li class="toctree-l3"><a class="reference internal" href="#create-a-menu">Create a menu</a></li>
<li class="toctree-l3"><a class="reference internal" href="#what-s-next">Whats next</a></li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="setup.html">Setting up the local environment and workspace</a></li>
</ul>
</li>
<li class="toctree-l1"><a class="reference internal" href="cpl_cli.html">CLI Reference</a></li>
2021-11-01 20:43:25 +01:00
<li class="toctree-l1"><a class="reference internal" href="cpl_core.html">API Reference</a></li>
2021-11-01 21:17:56 +01:00
<li class="toctree-l1"><a class="reference internal" href="cpl_query.html">Query Reference</a></li>
2021-05-17 18:32:09 +02:00
</ul>
2021-12-02 08:20:38 +01:00
2021-05-17 18:32:09 +02:00
</div>
2021-12-02 08:20:38 +01:00
2021-05-17 18:32:09 +02:00
</div>
</nav>
2021-12-02 08:20:38 +01:00
<section data-toggle="wy-nav-shift" class="wy-nav-content-wrap">
<nav class="wy-nav-top" aria-label="top navigation">
2021-05-17 18:32:09 +02:00
<i data-toggle="wy-nav-top" class="fa fa-bars"></i>
<a href="index.html">Common Python Library</a>
2021-12-02 08:20:38 +01:00
2021-05-17 18:32:09 +02:00
</nav>
2021-12-02 08:20:38 +01:00
2021-05-17 18:32:09 +02:00
<div class="wy-nav-content">
2021-12-02 08:20:38 +01:00
2021-05-17 18:32:09 +02:00
<div class="rst-content">
2021-12-02 08:20:38 +01:00
<div role="navigation" aria-label="breadcrumbs navigation">
2021-05-17 18:32:09 +02:00
<ul class="wy-breadcrumbs">
2021-12-02 08:20:38 +01:00
2021-05-17 18:32:09 +02:00
<li><a href="index.html" class="icon icon-home"></a> &raquo;</li>
2021-12-02 08:20:38 +01:00
2021-05-17 18:32:09 +02:00
<li><a href="getting_started.html">Getting started</a> &raquo;</li>
2021-12-02 08:20:38 +01:00
2021-05-17 18:32:09 +02:00
<li>Getting started with CPL</li>
2021-12-02 08:20:38 +01:00
2021-05-17 18:32:09 +02:00
<li class="wy-breadcrumbs-aside">
2021-12-02 08:20:38 +01:00
2021-05-17 18:32:09 +02:00
<a href="_sources/quickstart.md.txt" rel="nofollow"> View page source</a>
2021-12-02 08:20:38 +01:00
2021-05-17 18:32:09 +02:00
</li>
2021-12-02 08:20:38 +01:00
2021-05-17 18:32:09 +02:00
</ul>
2021-12-02 08:20:38 +01:00
2021-05-17 18:32:09 +02:00
<hr/>
</div>
<div role="main" class="document" itemscope="itemscope" itemtype="http://schema.org/Article">
<div itemprop="articleBody">
2021-12-02 08:20:38 +01:00
<div class="section" id="getting-started-with-cpl">
<h1>Getting started with CPL<a class="headerlink" href="#getting-started-with-cpl" title="Permalink to this headline"></a></h1>
2021-05-17 18:32:09 +02:00
<p>Welcome to CPL!</p>
<p>This tutorial introduces you to the essentials of the CPL package by walking through building an console based app.</p>
<div class="section" id="table-of-contents">
2021-12-02 08:20:38 +01:00
<h2>Table of Contents<a class="headerlink" href="#table-of-contents" title="Permalink to this headline"></a></h2>
2021-05-17 18:32:09 +02:00
<ol class="simple">
<li><p><a class="reference external" href="#prerequisites">Prerequisites</a></p></li>
<li><p><a class="reference external" href="#create-the-project">Create the project</a></p></li>
<li><p><a class="reference external" href="#create-a-menu">Create a menu</a></p></li>
<li><p><a class="reference external" href="#whats-next">Whats next</a></p></li>
</ol>
</div>
<div class="section" id="prerequisites">
2021-12-02 08:20:38 +01:00
<h2>Prerequisites<a class="headerlink" href="#prerequisites" title="Permalink to this headline"></a></h2>
2021-05-17 18:32:09 +02:00
<p>To get most out of this tutorial you should already have a basic understanding of the following.</p>
<ul class="simple">
<li><p><a class="reference external" href="https://www.python.org/">Python</a></p></li>
</ul>
<p>Also you need to have the following installed.</p>
<ul class="simple">
<li><p><a class="reference external" href="https://www.python.org/">Python</a></p></li>
<li><p><a class="reference external" href="https://pip.sh-edraft.de">Pip</a></p></li>
<li><p><a class="reference internal" href="setup.html"><span class="doc std std-doc">CPL</span></a></p></li>
<li><p><a class="reference internal" href="setup.html"><span class="doc std std-doc">CPL-CLI</span></a></p></li>
</ul>
</div>
<div class="section" id="create-the-project">
2021-12-02 08:20:38 +01:00
<h2>Create the project<a class="headerlink" href="#create-the-project" title="Permalink to this headline"></a></h2>
2021-05-17 18:32:09 +02:00
<p>To create the sample project to the following:</p>
<ol>
<li><p>Open a terminal</p></li>
<li><p>Run</p>
<div class="highlight-sh notranslate"><div class="highlight"><pre><span></span>cpl new console sample-project
</pre></div>
</div>
</li>
<li><p>We dont want to use Application base or Dependency injection:</p>
<div class="highlight-sh notranslate"><div class="highlight"><pre><span></span>Do you want to use application base? <span class="o">(</span>y/n<span class="o">)</span> n
Do you want to use service providing? <span class="o">(</span>y/n<span class="o">)</span> n
</pre></div>
</div>
<p>The ouput should look like this:</p>
<div class="highlight-sh notranslate"><div class="highlight"><pre><span></span>Creating sample-project/LICENSE <span class="k">done</span>
Creating sample-project/README.md <span class="k">done</span>
Creating sample-project/src/tests/__init__.py <span class="k">done</span>
Creating sample-project/appsettings.json <span class="k">done</span>
Creating sample-project/src/sample-project/__init__.py <span class="k">done</span>
Creating sample-project/src/sample-projectmain.py <span class="k">done</span>
</pre></div>
</div>
</li>
<li><p>Open the project with an IDE like VS Code or PyCharm</p>
<p><img alt="IDE" src="_images/ide.png" /></p>
</li>
<li><p>Set the src directory as source folder</p>
<p><img alt="IDE set src folder" src="_images/ide-src.png" /></p>
</li>
<li><p>Run the application</p>
<p>You should see an output like:</p>
<div class="highlight-sh notranslate"><div class="highlight"><pre><span></span>Hello World
</pre></div>
</div>
</li>
<li><p>In PyCharm you have to enable <code class="docutils literal notranslate"><span class="pre">Emulate</span> <span class="pre">terminal</span> <span class="pre">in</span> <span class="pre">output</span> <span class="pre">console</span></code>!</p>
<p><img alt="IDE emulate console" src="_images/ide-emulate.png" /></p>
</li>
</ol>
</div>
<div class="section" id="create-a-menu">
2021-12-02 08:20:38 +01:00
<h2>Create a menu<a class="headerlink" href="#create-a-menu" title="Permalink to this headline"></a></h2>
2021-05-17 18:32:09 +02:00
<ol>
<li><p>Open the sample-project/main.py</p></li>
<li><p>Change Hello World to Password generator: in line 5</p></li>
<li><p>Add <code class="docutils literal notranslate"><span class="pre">Console.select</span></code> as follows:</p>
2021-11-01 20:43:25 +01:00
<div class="highlight-py notranslate"><div class="highlight"><pre><span></span><span class="kn">from</span> <span class="nn">cpl_core.console</span> <span class="kn">import</span> <span class="n">Console</span>
2021-05-17 18:32:09 +02:00
<span class="k">def</span> <span class="nf">main</span><span class="p">():</span>
<span class="n">Console</span><span class="o">.</span><span class="n">write_line</span><span class="p">(</span><span class="s1">&#39;Password generator:&#39;</span><span class="p">)</span>
<span class="n">options</span> <span class="o">=</span> <span class="p">[</span>
<span class="s1">&#39;Only lower case&#39;</span><span class="p">,</span>
<span class="s1">&#39;Only upper case&#39;</span><span class="p">,</span>
<span class="s1">&#39;Lower and upper case&#39;</span>
<span class="s1">&#39;Exit&#39;</span>
<span class="p">]</span>
<span class="n">option</span> <span class="o">=</span> <span class="n">Console</span><span class="o">.</span><span class="n">select</span><span class="p">(</span><span class="s1">&#39;&gt;&#39;</span><span class="p">,</span> <span class="s1">&#39;Select option: &#39;</span><span class="p">,</span> <span class="n">options</span><span class="p">)</span>
<span class="k">if</span> <span class="vm">__name__</span> <span class="o">==</span> <span class="s1">&#39;__main__&#39;</span><span class="p">:</span>
<span class="n">main</span><span class="p">()</span>
</pre></div>
</div>
</li>
<li><p>Get Id of the selected option:</p>
<div class="highlight-py notranslate"><div class="highlight"><pre><span></span><span class="n">index</span> <span class="o">=</span> <span class="n">options</span><span class="o">.</span><span class="n">index</span><span class="p">(</span><span class="n">option</span><span class="p">)</span>
</pre></div>
</div>
</li>
<li><p>Create the generate function as follows:</p>
<div class="highlight-py notranslate"><div class="highlight"><pre><span></span><span class="k">def</span> <span class="nf">generate_password</span><span class="p">(</span><span class="n">letters</span><span class="p">:</span> <span class="nb">str</span><span class="p">,</span> <span class="n">length</span><span class="p">:</span> <span class="nb">int</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="nb">str</span><span class="p">:</span>
<span class="k">return</span> <span class="s1">&#39;&#39;</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">random</span><span class="o">.</span><span class="n">choice</span><span class="p">(</span><span class="n">letters</span><span class="p">)</span> <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="n">length</span><span class="p">))</span>
</pre></div>
</div>
<p>Add imports:</p>
<div class="highlight-py notranslate"><div class="highlight"><pre><span></span><span class="kn">import</span> <span class="nn">random</span>
<span class="kn">import</span> <span class="nn">string</span>
</pre></div>
</div>
</li>
<li><p>Get length of the password:</p>
<div class="highlight-py notranslate"><div class="highlight"><pre><span></span><span class="n">length</span> <span class="o">=</span> <span class="nb">int</span><span class="p">(</span><span class="n">Console</span><span class="o">.</span><span class="n">read</span><span class="p">(</span><span class="s1">&#39;Length: &#39;</span><span class="p">))</span>
</pre></div>
</div>
</li>
<li><p>Validate the selected option:</p>
<div class="highlight-py notranslate"><div class="highlight"><pre><span></span><span class="n">index</span> <span class="o">=</span> <span class="n">options</span><span class="o">.</span><span class="n">index</span><span class="p">(</span><span class="n">option</span><span class="p">)</span>
<span class="n">letters</span> <span class="o">=</span> <span class="s1">&#39;&#39;</span>
<span class="k">if</span> <span class="n">index</span> <span class="o">==</span> <span class="mi">0</span><span class="p">:</span>
<span class="n">letters</span> <span class="o">=</span> <span class="n">string</span><span class="o">.</span><span class="n">ascii_lowercase</span>
<span class="k">elif</span> <span class="n">index</span> <span class="o">==</span> <span class="mi">1</span><span class="p">:</span>
<span class="n">letters</span> <span class="o">=</span> <span class="n">string</span><span class="o">.</span><span class="n">ascii_uppercase</span>
<span class="k">elif</span> <span class="n">index</span> <span class="o">==</span> <span class="mi">2</span><span class="p">:</span>
<span class="n">letters</span> <span class="o">=</span> <span class="n">string</span><span class="o">.</span><span class="n">ascii_letters</span>
<span class="k">elif</span> <span class="n">index</span> <span class="o">==</span> <span class="nb">len</span><span class="p">(</span><span class="n">options</span><span class="p">)</span> <span class="o">-</span> <span class="mi">1</span><span class="p">:</span>
<span class="n">exit</span><span class="p">()</span>
</pre></div>
</div>
</li>
<li><p>Print the generated password:</p>
<div class="highlight-py notranslate"><div class="highlight"><pre><span></span><span class="n">Console</span><span class="o">.</span><span class="n">write_line</span><span class="p">(</span><span class="s1">&#39;Password: &#39;</span><span class="p">,</span> <span class="n">generate_password</span><span class="p">(</span><span class="n">letters</span><span class="p">,</span> <span class="n">length</span><span class="p">))</span>
</pre></div>
</div>
</li>
<li><p>The full sample-project/main.py:</p>
<div class="highlight-py notranslate"><div class="highlight"><pre><span></span><span class="kn">import</span> <span class="nn">random</span>
<span class="kn">import</span> <span class="nn">string</span>
2021-11-01 20:43:25 +01:00
<span class="kn">from</span> <span class="nn">cpl_core.console</span> <span class="kn">import</span> <span class="n">Console</span>
2021-05-17 18:32:09 +02:00
<span class="k">def</span> <span class="nf">generate_password</span><span class="p">(</span><span class="n">letters</span><span class="p">:</span> <span class="nb">str</span><span class="p">,</span> <span class="n">length</span><span class="p">:</span> <span class="nb">int</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="nb">str</span><span class="p">:</span>
<span class="k">return</span> <span class="s1">&#39;&#39;</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">random</span><span class="o">.</span><span class="n">choice</span><span class="p">(</span><span class="n">letters</span><span class="p">)</span> <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="n">length</span><span class="p">))</span>
<span class="k">def</span> <span class="nf">main</span><span class="p">():</span>
<span class="n">Console</span><span class="o">.</span><span class="n">write_line</span><span class="p">(</span><span class="s1">&#39;Password generator:&#39;</span><span class="p">)</span>
<span class="n">options</span> <span class="o">=</span> <span class="p">[</span>
<span class="s1">&#39;Only lower case&#39;</span><span class="p">,</span>
<span class="s1">&#39;Only upper case&#39;</span><span class="p">,</span>
<span class="s1">&#39;Lower and upper case&#39;</span><span class="p">,</span>
<span class="s1">&#39;Exit&#39;</span>
<span class="p">]</span>
<span class="n">option</span> <span class="o">=</span> <span class="n">Console</span><span class="o">.</span><span class="n">select</span><span class="p">(</span><span class="s1">&#39;&gt;&#39;</span><span class="p">,</span> <span class="s1">&#39;Select option: &#39;</span><span class="p">,</span> <span class="n">options</span><span class="p">)</span>
<span class="n">length</span> <span class="o">=</span> <span class="nb">int</span><span class="p">(</span><span class="n">Console</span><span class="o">.</span><span class="n">read</span><span class="p">(</span><span class="s1">&#39;Length: &#39;</span><span class="p">))</span>
<span class="n">index</span> <span class="o">=</span> <span class="n">options</span><span class="o">.</span><span class="n">index</span><span class="p">(</span><span class="n">option</span><span class="p">)</span>
<span class="n">letters</span> <span class="o">=</span> <span class="s1">&#39;&#39;</span>
<span class="k">if</span> <span class="n">index</span> <span class="o">==</span> <span class="mi">0</span><span class="p">:</span>
<span class="n">letters</span> <span class="o">=</span> <span class="n">string</span><span class="o">.</span><span class="n">ascii_lowercase</span>
<span class="k">elif</span> <span class="n">index</span> <span class="o">==</span> <span class="mi">1</span><span class="p">:</span>
<span class="n">letters</span> <span class="o">=</span> <span class="n">string</span><span class="o">.</span><span class="n">ascii_uppercase</span>
<span class="k">elif</span> <span class="n">index</span> <span class="o">==</span> <span class="mi">2</span><span class="p">:</span>
<span class="n">letters</span> <span class="o">=</span> <span class="n">string</span><span class="o">.</span><span class="n">ascii_letters</span>
<span class="k">elif</span> <span class="n">index</span> <span class="o">==</span> <span class="nb">len</span><span class="p">(</span><span class="n">options</span><span class="p">)</span> <span class="o">-</span> <span class="mi">1</span><span class="p">:</span>
<span class="n">exit</span><span class="p">()</span>
<span class="n">Console</span><span class="o">.</span><span class="n">write_line</span><span class="p">(</span><span class="s1">&#39;Password: &#39;</span><span class="p">,</span> <span class="n">generate_password</span><span class="p">(</span><span class="n">letters</span><span class="p">,</span> <span class="n">length</span><span class="p">))</span>
<span class="k">if</span> <span class="vm">__name__</span> <span class="o">==</span> <span class="s1">&#39;__main__&#39;</span><span class="p">:</span>
<span class="n">main</span><span class="p">()</span>
</pre></div>
</div>
</li>
</ol>
</div>
<div class="section" id="what-s-next">
2021-12-02 08:20:38 +01:00
<h2>Whats next<a class="headerlink" href="#what-s-next" title="Permalink to this headline"></a></h2>
2021-05-17 18:32:09 +02:00
<p>In this section, youve created an application that uses user input to generate a password.</p>
<p>To continue exploring CPL and developing applications:</p>
<ul class="simple">
2021-11-01 20:43:25 +01:00
<li><p><a class="reference internal" href="cpl_core.application.html"><span class="doc std std-doc">Application base</span></a></p></li>
<li><p><a class="reference internal" href="cpl_core.dependency_injection.html"><span class="doc std std-doc">Dependency injection</span></a></p></li>
<li><p><a class="reference internal" href="cpl_core.console.html"><span class="doc std std-doc">Console</span></a></p></li>
2021-05-17 18:32:09 +02:00
</ul>
<!-- LINKS -->
</div>
</div>
</div>
2021-12-02 08:20:38 +01:00
2021-05-17 18:32:09 +02:00
</div>
2021-12-02 08:20:38 +01:00
<footer>
<div class="rst-footer-buttons" role="navigation" aria-label="footer navigation">
<a href="setup.html" class="btn btn-neutral float-right" title="Setting up the local environment and workspace" accesskey="n" rel="next">Next <span class="fa fa-arrow-circle-right" aria-hidden="true"></span></a>
2021-12-02 08:20:38 +01:00
<a href="getting_started.html" class="btn btn-neutral float-left" title="Getting started" accesskey="p" rel="prev"><span class="fa fa-arrow-circle-left" aria-hidden="true"></span> Previous</a>
2021-05-17 18:32:09 +02:00
</div>
<hr/>
<div role="contentinfo">
2021-12-02 08:20:38 +01:00
<p>
&#169; Copyright 2021, Sven Heidemann.
2021-12-02 08:20:38 +01:00
</p>
</div>
Built with <a href="https://www.sphinx-doc.org/">Sphinx</a> using a
2021-05-17 18:32:09 +02:00
<a href="https://github.com/readthedocs/sphinx_rtd_theme">theme</a>
2021-12-02 08:20:38 +01:00
provided by <a href="https://readthedocs.org">Read the Docs</a>.
2021-05-17 18:32:09 +02:00
</footer>
</div>
</div>
2021-12-02 08:20:38 +01:00
2021-05-17 18:32:09 +02:00
</section>
2021-12-02 08:20:38 +01:00
2021-05-17 18:32:09 +02:00
</div>
2021-12-02 08:20:38 +01:00
<script type="text/javascript">
2021-05-17 18:32:09 +02:00
jQuery(function () {
SphinxRtdTheme.Navigation.enable(true);
});
2021-12-02 08:20:38 +01:00
</script>
2021-05-17 18:32:09 +02:00
</body>
</html>