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