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Kenneth Reitz
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139 lines
5.6 KiB
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accesskey="N">next</a> |</li>
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<div class="section" id="useful-tools">
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<h1>Useful Tools<a class="headerlink" href="#useful-tools" title="Permalink to this headline">¶</a></h1>
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<p><em>For Python 2.7.</em></p>
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<p>One of the reasons everybody loves Python is the interactive shell. It
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basically allows you to execute Python commands in real time and
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immediately get results back. Flask itself does not come with an
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interactive shell, because it does not require any specific setup upfront,
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just import your application and start playing around.</p>
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<div class="highlight-python"><pre>$ pip install bpython</pre>
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</div>
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<p>And we can now install Python 2.7:</p>
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<div class="highlight-python"><pre>$</pre>
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</div>
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<p>The <strong>–framework</strong> option tells Python</p>
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<div class="section" id="ipython">
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<h2>IPython<a class="headerlink" href="#ipython" title="Permalink to this headline">¶</a></h2>
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<p>Say you have a utility function that returns the URL the user should be
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redirected to. Imagine it would always redirect to the URL’s <tt class="docutils literal"><span class="pre">next</span></tt>
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parameter or the HTTP referrer or the index page:</p>
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<div class="highlight-python"><pre>$ curl -O http://python-distribute.org/distribute_setup.py
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$ python distribute_setup.py</pre>
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</div>
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<p>As you can see, it accesses the request object. If you try to run this
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from a plain Python shell, this is the exception you will see:</p>
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<div class="highlight-python"><pre>$ easy_install pip</pre>
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</div>
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<p>Hopefully you’ll never have to use <strong>easy_install</strong> again.</p>
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</div>
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<div class="section" id="bpython">
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<h2>BPython<a class="headerlink" href="#bpython" title="Permalink to this headline">¶</a></h2>
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<p>By just creating a request context, you still don’t have run the code that
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is normally run before a request. This probably results in your database
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being unavailable, the current user not being stored on the
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<tt class="xref py py-data docutils literal"><span class="pre">g</span></tt> object etc.</p>
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<h3><a href="index.html">Table Of Contents</a></h3>
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<li><a class="reference internal" href="#">Useful Tools</a><ul>
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<li><a class="reference internal" href="#ipython">IPython</a></li>
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<li><a class="reference internal" href="#bpython">BPython</a></li>
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<h3>Related Topics</h3>
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<li><a href="index.html">Documentation overview</a><ul>
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<li>Previous: <a href="installation.html" title="previous chapter">Properly Installing Python</a></li>
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<li>Next: <a href="shell.html" title="next chapter">Working with the Shell</a></li>
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© Copyright 2010, Kenneth Reitz.
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