diff options
Diffstat (limited to 'app/static/doc/flask-docs/becomingbig.html')
| -rw-r--r-- | app/static/doc/flask-docs/becomingbig.html | 187 |
1 files changed, 0 insertions, 187 deletions
diff --git a/app/static/doc/flask-docs/becomingbig.html b/app/static/doc/flask-docs/becomingbig.html deleted file mode 100644 index 1d44906..0000000 --- a/app/static/doc/flask-docs/becomingbig.html +++ /dev/null @@ -1,187 +0,0 @@ - -<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" - "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> - - -<html xmlns="http://www.w3.org/1999/xhtml"> - <head> - <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> - - <title>Becoming Big — Flask 0.8 documentation</title> - - <link rel="stylesheet" href="_static/flasky.css" type="text/css" /> - <link rel="stylesheet" href="_static/pygments.css" type="text/css" /> - - <script type="text/javascript"> - var DOCUMENTATION_OPTIONS = { - URL_ROOT: '', - VERSION: '0.8', - COLLAPSE_INDEX: false, - FILE_SUFFIX: '.html', - HAS_SOURCE: true - }; - </script> - <script type="text/javascript" src="_static/jquery.js"></script> - <script type="text/javascript" src="_static/underscore.js"></script> - <script type="text/javascript" src="_static/doctools.js"></script> - <link rel="top" title="Flask 0.8 documentation" href="index.html" /> - <link rel="next" title="API" href="api.html" /> - <link rel="prev" title="Other Servers" href="deploying/others.html" /> - - - <link rel="apple-touch-icon" href="_static/touch-icon.png" /> - - <link media="only screen and (max-device-width: 480px)" href="_static/small_flask.css" type= "text/css" rel="stylesheet" /> - - </head> - <body> - <div class="related"> - <h3>Navigation</h3> - <ul> - <li class="right" style="margin-right: 10px"> - <a href="genindex.html" title="General Index" - accesskey="I">index</a></li> - <li class="right" > - <a href="api.html" title="API" - accesskey="N">next</a> |</li> - <li class="right" > - <a href="deploying/others.html" title="Other Servers" - accesskey="P">previous</a> |</li> - <li><a href="index.html">Flask 0.8 documentation</a> »</li> - </ul> - </div> - - <div class="document"> - <div class="documentwrapper"> - <div class="bodywrapper"> - <div class="body"> - - <div class="section" id="becoming-big"> -<span id="becomingbig"></span><h1>Becoming Big<a class="headerlink" href="#becoming-big" title="Permalink to this headline">¶</a></h1> -<p>Your application is becoming more and more complex? If you suddenly -realize that Flask does things in a way that does not work out for your -application there are ways to deal with that.</p> -<p>Flask is powered by Werkzeug and Jinja2, two libraries that are in use at -a number of large websites out there and all Flask does is bring those -two together. Being a microframework Flask does not do much more than -combining existing libraries - there is not a lot of code involved. -What that means for large applications is that it’s very easy to take the -code from Flask and put it into a new module within the applications and -expand on that.</p> -<p>Flask is designed to be extended and modified in a couple of different -ways:</p> -<ul class="simple"> -<li>Flask extensions. For a lot of reusable functionality you can create -extensions. For extensions a number of hooks exist throughout Flask -with signals and callback functions.</li> -<li>Subclassing. The majority of functionality can be changed by creating -a new subclass of the <a class="reference internal" href="api.html#flask.Flask" title="flask.Flask"><tt class="xref py py-class docutils literal"><span class="pre">Flask</span></tt></a> class and overriding -methods provided for this exact purpose.</li> -<li>Forking. If nothing else works out you can just take the Flask -codebase at a given point and copy/paste it into your application -and change it. Flask is designed with that in mind and makes this -incredible easy. You just have to take the package and copy it -into your application’s code and rename it (for example to -<cite>framework</cite>). Then you can start modifying the code in there.</li> -</ul> -<div class="section" id="why-consider-forking"> -<h2>Why consider Forking?<a class="headerlink" href="#why-consider-forking" title="Permalink to this headline">¶</a></h2> -<p>The majority of code of Flask is within Werkzeug and Jinja2. These -libraries do the majority of the work. Flask is just the paste that glues -those together. For every project there is the point where the underlying -framework gets in the way (due to assumptions the original developers -had). This is natural because if this would not be the case, the -framework would be a very complex system to begin with which causes a -steep learning curve and a lot of user frustration.</p> -<p>This is not unique to Flask. Many people use patched and modified -versions of their framework to counter shortcomings. This idea is also -reflected in the license of Flask. You don’t have to contribute any -changes back if you decide to modify the framework.</p> -<p>The downside of forking is of course that Flask extensions will most -likely break because the new framework has a different import name. -Furthermore integrating upstream changes can be a complex process, -depending on the number of changes. Because of that, forking should be -the very last resort.</p> -</div> -<div class="section" id="scaling-like-a-pro"> -<h2>Scaling like a Pro<a class="headerlink" href="#scaling-like-a-pro" title="Permalink to this headline">¶</a></h2> -<p>For many web applications the complexity of the code is less an issue than -the scaling for the number of users or data entries expected. Flask by -itself is only limited in terms of scaling by your application code, the -data store you want to use and the Python implementation and webserver you -are running on.</p> -<p>Scaling well means for example that if you double the amount of servers -you get about twice the performance. Scaling bad means that if you add a -new server the application won’t perform any better or would not even -support a second server.</p> -<p>There is only one limiting factor regarding scaling in Flask which are -the context local proxies. They depend on context which in Flask is -defined as being either a thread, process or greenlet. If your server -uses some kind of concurrency that is not based on threads or greenlets, -Flask will no longer be able to support these global proxies. However the -majority of servers are using either threads, greenlets or separate -processes to achieve concurrency which are all methods well supported by -the underlying Werkzeug library.</p> -</div> -<div class="section" id="dialogue-with-the-community"> -<h2>Dialogue with the Community<a class="headerlink" href="#dialogue-with-the-community" title="Permalink to this headline">¶</a></h2> -<p>The Flask developers are very interested to keep everybody happy, so as -soon as you find an obstacle in your way, caused by Flask, don’t hesitate -to contact the developers on the mailinglist or IRC channel. The best way -for the Flask and Flask-extension developers to improve it for larger -applications is getting feedback from users.</p> -</div> -</div> - - - </div> - </div> - </div> - <div class="sphinxsidebar"> - <div class="sphinxsidebarwrapper"><p class="logo"><a href="index.html"> - <img class="logo" src="_static/flask.png" alt="Logo"/> -</a></p> - <h3><a href="index.html">Table Of Contents</a></h3> - <ul> -<li><a class="reference internal" href="#">Becoming Big</a><ul> -<li><a class="reference internal" href="#why-consider-forking">Why consider Forking?</a></li> -<li><a class="reference internal" href="#scaling-like-a-pro">Scaling like a Pro</a></li> -<li><a class="reference internal" href="#dialogue-with-the-community">Dialogue with the Community</a></li> -</ul> -</li> -</ul> -<h3>Related Topics</h3> -<ul> - <li><a href="index.html">Documentation overview</a><ul> - <li>Previous: <a href="deploying/others.html" title="previous chapter">Other Servers</a></li> - <li>Next: <a href="api.html" title="next chapter">API</a></li> - </ul></li> -</ul> - <h3>This Page</h3> - <ul class="this-page-menu"> - <li><a href="_sources/becomingbig.txt" - rel="nofollow">Show Source</a></li> - </ul> -<div id="searchbox" style="display: none"> - <h3>Quick search</h3> - <form class="search" action="search.html" method="get"> - <input type="text" name="q" /> - <input type="submit" value="Go" /> - <input type="hidden" name="check_keywords" value="yes" /> - <input type="hidden" name="area" value="default" /> - </form> - <p class="searchtip" style="font-size: 90%"> - Enter search terms or a module, class or function name. - </p> -</div> -<script type="text/javascript">$('#searchbox').show(0);</script> - </div> - </div> - <div class="clearer"></div> - </div> - <div class="footer"> - © Copyright 2010, Armin Ronacher. - Created using <a href="http://sphinx.pocoo.org/">Sphinx</a>. - </div> - </body> -</html>
\ No newline at end of file |