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<div class="section" id="flask-documentation">
<h1>Flask Documentation<a class="headerlink" href="#flask-documentation" title="Permalink to this headline">¶</a></h1>
<div class="section" id="user-s-guide">
<h2>User’s Guide<a class="headerlink" href="#user-s-guide" title="Permalink to this headline">¶</a></h2>
<p>This part of the documentation, which is mostly prose, begins with some
background information about Flask, then focuses on step-by-step
instructions for web development with Flask.</p>
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<li class="toctree-l1"><a class="reference internal" href="foreword.html">Foreword</a><ul>
<li class="toctree-l2"><a class="reference internal" href="foreword.html#what-does-micro-mean">What does “micro” mean?</a></li>
<li class="toctree-l2"><a class="reference internal" href="foreword.html#web-development-is-dangerous">Web Development is Dangerous</a></li>
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<li class="toctree-l2"><a class="reference internal" href="installation.html#system-wide-installation">System Wide Installation</a></li>
<li class="toctree-l2"><a class="reference internal" href="installation.html#living-on-the-edge">Living on the Edge</a></li>
<li class="toctree-l2"><a class="reference internal" href="installation.html#easy-install-on-windows"><cite>easy_install</cite> on Windows</a></li>
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<li class="toctree-l1"><a class="reference internal" href="quickstart.html">Quickstart</a><ul>
<li class="toctree-l2"><a class="reference internal" href="quickstart.html#a-minimal-application">A Minimal Application</a></li>
<li class="toctree-l2"><a class="reference internal" href="quickstart.html#debug-mode">Debug Mode</a></li>
<li class="toctree-l2"><a class="reference internal" href="quickstart.html#routing">Routing</a></li>
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<li class="toctree-l2"><a class="reference internal" href="quickstart.html#accessing-request-data">Accessing Request Data</a></li>
<li class="toctree-l2"><a class="reference internal" href="quickstart.html#redirects-and-errors">Redirects and Errors</a></li>
<li class="toctree-l2"><a class="reference internal" href="quickstart.html#about-responses">About Responses</a></li>
<li class="toctree-l2"><a class="reference internal" href="quickstart.html#sessions">Sessions</a></li>
<li class="toctree-l2"><a class="reference internal" href="quickstart.html#message-flashing">Message Flashing</a></li>
<li class="toctree-l2"><a class="reference internal" href="quickstart.html#logging">Logging</a></li>
<li class="toctree-l2"><a class="reference internal" href="quickstart.html#hooking-in-wsgi-middlewares">Hooking in WSGI Middlewares</a></li>
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<li class="toctree-l1"><a class="reference internal" href="tutorial/index.html">Tutorial</a><ul>
<li class="toctree-l2"><a class="reference internal" href="tutorial/introduction.html">Introducing Flaskr</a></li>
<li class="toctree-l2"><a class="reference internal" href="tutorial/folders.html">Step 0: Creating The Folders</a></li>
<li class="toctree-l2"><a class="reference internal" href="tutorial/schema.html">Step 1: Database Schema</a></li>
<li class="toctree-l2"><a class="reference internal" href="tutorial/setup.html">Step 2: Application Setup Code</a></li>
<li class="toctree-l2"><a class="reference internal" href="tutorial/dbinit.html">Step 3: Creating The Database</a></li>
<li class="toctree-l2"><a class="reference internal" href="tutorial/dbcon.html">Step 4: Request Database Connections</a></li>
<li class="toctree-l2"><a class="reference internal" href="tutorial/views.html">Step 5: The View Functions</a></li>
<li class="toctree-l2"><a class="reference internal" href="tutorial/templates.html">Step 6: The Templates</a></li>
<li class="toctree-l2"><a class="reference internal" href="tutorial/css.html">Step 7: Adding Style</a></li>
<li class="toctree-l2"><a class="reference internal" href="tutorial/testing.html">Bonus: Testing the Application</a></li>
</ul>
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<li class="toctree-l1"><a class="reference internal" href="templating.html">Templates</a><ul>
<li class="toctree-l2"><a class="reference internal" href="templating.html#jinja-setup">Jinja Setup</a></li>
<li class="toctree-l2"><a class="reference internal" href="templating.html#standard-context">Standard Context</a></li>
<li class="toctree-l2"><a class="reference internal" href="templating.html#standard-filters">Standard Filters</a></li>
<li class="toctree-l2"><a class="reference internal" href="templating.html#controlling-autoescaping">Controlling Autoescaping</a></li>
<li class="toctree-l2"><a class="reference internal" href="templating.html#registering-filters">Registering Filters</a></li>
<li class="toctree-l2"><a class="reference internal" href="templating.html#context-processors">Context Processors</a></li>
</ul>
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<li class="toctree-l1"><a class="reference internal" href="testing.html">Testing Flask Applications</a><ul>
<li class="toctree-l2"><a class="reference internal" href="testing.html#the-application">The Application</a></li>
<li class="toctree-l2"><a class="reference internal" href="testing.html#the-testing-skeleton">The Testing Skeleton</a></li>
<li class="toctree-l2"><a class="reference internal" href="testing.html#the-first-test">The First Test</a></li>
<li class="toctree-l2"><a class="reference internal" href="testing.html#logging-in-and-out">Logging In and Out</a></li>
<li class="toctree-l2"><a class="reference internal" href="testing.html#test-adding-messages">Test Adding Messages</a></li>
<li class="toctree-l2"><a class="reference internal" href="testing.html#other-testing-tricks">Other Testing Tricks</a></li>
<li class="toctree-l2"><a class="reference internal" href="testing.html#keeping-the-context-around">Keeping the Context Around</a></li>
<li class="toctree-l2"><a class="reference internal" href="testing.html#accessing-and-modifying-sessions">Accessing and Modifying Sessions</a></li>
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<li class="toctree-l1"><a class="reference internal" href="errorhandling.html">Handling Application Errors</a><ul>
<li class="toctree-l2"><a class="reference internal" href="errorhandling.html#error-mails">Error Mails</a></li>
<li class="toctree-l2"><a class="reference internal" href="errorhandling.html#logging-to-a-file">Logging to a File</a></li>
<li class="toctree-l2"><a class="reference internal" href="errorhandling.html#controlling-the-log-format">Controlling the Log Format</a></li>
<li class="toctree-l2"><a class="reference internal" href="errorhandling.html#other-libraries">Other Libraries</a></li>
</ul>
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<li class="toctree-l1"><a class="reference internal" href="config.html">Configuration Handling</a><ul>
<li class="toctree-l2"><a class="reference internal" href="config.html#configuration-basics">Configuration Basics</a></li>
<li class="toctree-l2"><a class="reference internal" href="config.html#builtin-configuration-values">Builtin Configuration Values</a></li>
<li class="toctree-l2"><a class="reference internal" href="config.html#configuring-from-files">Configuring from Files</a></li>
<li class="toctree-l2"><a class="reference internal" href="config.html#configuration-best-practices">Configuration Best Practices</a></li>
<li class="toctree-l2"><a class="reference internal" href="config.html#development-production">Development / Production</a></li>
<li class="toctree-l2"><a class="reference internal" href="config.html#instance-folders">Instance Folders</a></li>
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<li class="toctree-l1"><a class="reference internal" href="signals.html">Signals</a><ul>
<li class="toctree-l2"><a class="reference internal" href="signals.html#subscribing-to-signals">Subscribing to Signals</a></li>
<li class="toctree-l2"><a class="reference internal" href="signals.html#creating-signals">Creating Signals</a></li>
<li class="toctree-l2"><a class="reference internal" href="signals.html#sending-signals">Sending Signals</a></li>
<li class="toctree-l2"><a class="reference internal" href="signals.html#decorator-based-signal-subscriptions">Decorator Based Signal Subscriptions</a></li>
<li class="toctree-l2"><a class="reference internal" href="signals.html#core-signals">Core Signals</a></li>
</ul>
</li>
<li class="toctree-l1"><a class="reference internal" href="views.html">Pluggable Views</a><ul>
<li class="toctree-l2"><a class="reference internal" href="views.html#basic-principle">Basic Principle</a></li>
<li class="toctree-l2"><a class="reference internal" href="views.html#method-hints">Method Hints</a></li>
<li class="toctree-l2"><a class="reference internal" href="views.html#method-based-dispatching">Method Based Dispatching</a></li>
<li class="toctree-l2"><a class="reference internal" href="views.html#decorating-views">Decorating Views</a></li>
<li class="toctree-l2"><a class="reference internal" href="views.html#method-views-for-apis">Method Views for APIs</a></li>
</ul>
</li>
<li class="toctree-l1"><a class="reference internal" href="reqcontext.html">The Request Context</a><ul>
<li class="toctree-l2"><a class="reference internal" href="reqcontext.html#diving-into-context-locals">Diving into Context Locals</a></li>
<li class="toctree-l2"><a class="reference internal" href="reqcontext.html#how-the-context-works">How the Context Works</a></li>
<li class="toctree-l2"><a class="reference internal" href="reqcontext.html#callbacks-and-errors">Callbacks and Errors</a></li>
<li class="toctree-l2"><a class="reference internal" href="reqcontext.html#teardown-callbacks">Teardown Callbacks</a></li>
<li class="toctree-l2"><a class="reference internal" href="reqcontext.html#notes-on-proxies">Notes On Proxies</a></li>
<li class="toctree-l2"><a class="reference internal" href="reqcontext.html#context-preservation-on-error">Context Preservation on Error</a></li>
</ul>
</li>
<li class="toctree-l1"><a class="reference internal" href="blueprints.html">Modular Applications with Blueprints</a><ul>
<li class="toctree-l2"><a class="reference internal" href="blueprints.html#why-blueprints">Why Blueprints?</a></li>
<li class="toctree-l2"><a class="reference internal" href="blueprints.html#the-concept-of-blueprints">The Concept of Blueprints</a></li>
<li class="toctree-l2"><a class="reference internal" href="blueprints.html#my-first-blueprint">My First Blueprint</a></li>
<li class="toctree-l2"><a class="reference internal" href="blueprints.html#registering-blueprints">Registering Blueprints</a></li>
<li class="toctree-l2"><a class="reference internal" href="blueprints.html#blueprint-resources">Blueprint Resources</a></li>
<li class="toctree-l2"><a class="reference internal" href="blueprints.html#building-urls">Building URLs</a></li>
</ul>
</li>
<li class="toctree-l1"><a class="reference internal" href="extensions.html">Flask Extensions</a><ul>
<li class="toctree-l2"><a class="reference internal" href="extensions.html#finding-extensions">Finding Extensions</a></li>
<li class="toctree-l2"><a class="reference internal" href="extensions.html#using-extensions">Using Extensions</a></li>
<li class="toctree-l2"><a class="reference internal" href="extensions.html#flask-before-0-8">Flask Before 0.8</a></li>
</ul>
</li>
<li class="toctree-l1"><a class="reference internal" href="shell.html">Working with the Shell</a><ul>
<li class="toctree-l2"><a class="reference internal" href="shell.html#creating-a-request-context">Creating a Request Context</a></li>
<li class="toctree-l2"><a class="reference internal" href="shell.html#firing-before-after-request">Firing Before/After Request</a></li>
<li class="toctree-l2"><a class="reference internal" href="shell.html#further-improving-the-shell-experience">Further Improving the Shell Experience</a></li>
</ul>
</li>
<li class="toctree-l1"><a class="reference internal" href="patterns/index.html">Patterns for Flask</a><ul>
<li class="toctree-l2"><a class="reference internal" href="patterns/packages.html">Larger Applications</a></li>
<li class="toctree-l2"><a class="reference internal" href="patterns/appfactories.html">Application Factories</a></li>
<li class="toctree-l2"><a class="reference internal" href="patterns/appdispatch.html">Application Dispatching</a></li>
<li class="toctree-l2"><a class="reference internal" href="patterns/urlprocessors.html">Using URL Processors</a></li>
<li class="toctree-l2"><a class="reference internal" href="patterns/distribute.html">Deploying with Distribute</a></li>
<li class="toctree-l2"><a class="reference internal" href="patterns/fabric.html">Deploying with Fabric</a></li>
<li class="toctree-l2"><a class="reference internal" href="patterns/sqlite3.html">Using SQLite 3 with Flask</a></li>
<li class="toctree-l2"><a class="reference internal" href="patterns/sqlalchemy.html">SQLAlchemy in Flask</a></li>
<li class="toctree-l2"><a class="reference internal" href="patterns/fileuploads.html">Uploading Files</a></li>
<li class="toctree-l2"><a class="reference internal" href="patterns/caching.html">Caching</a></li>
<li class="toctree-l2"><a class="reference internal" href="patterns/viewdecorators.html">View Decorators</a></li>
<li class="toctree-l2"><a class="reference internal" href="patterns/wtforms.html">Form Validation with WTForms</a></li>
<li class="toctree-l2"><a class="reference internal" href="patterns/templateinheritance.html">Template Inheritance</a></li>
<li class="toctree-l2"><a class="reference internal" href="patterns/flashing.html">Message Flashing</a></li>
<li class="toctree-l2"><a class="reference internal" href="patterns/jquery.html">AJAX with jQuery</a></li>
<li class="toctree-l2"><a class="reference internal" href="patterns/errorpages.html">Custom Error Pages</a></li>
<li class="toctree-l2"><a class="reference internal" href="patterns/lazyloading.html">Lazily Loading Views</a></li>
<li class="toctree-l2"><a class="reference internal" href="patterns/mongokit.html">MongoKit in Flask</a></li>
<li class="toctree-l2"><a class="reference internal" href="patterns/favicon.html">Adding a favicon</a></li>
<li class="toctree-l2"><a class="reference internal" href="patterns/streaming.html">Streaming Contents</a></li>
<li class="toctree-l2"><a class="reference internal" href="patterns/deferredcallbacks.html">Deferred Request Callbacks</a></li>
</ul>
</li>
<li class="toctree-l1"><a class="reference internal" href="deploying/index.html">Deployment Options</a><ul>
<li class="toctree-l2"><a class="reference internal" href="deploying/mod_wsgi.html">mod_wsgi (Apache)</a></li>
<li class="toctree-l2"><a class="reference internal" href="deploying/cgi.html">CGI</a></li>
<li class="toctree-l2"><a class="reference internal" href="deploying/fastcgi.html">FastCGI</a></li>
<li class="toctree-l2"><a class="reference internal" href="deploying/uwsgi.html">uWSGI</a></li>
<li class="toctree-l2"><a class="reference internal" href="deploying/others.html">Other Servers</a></li>
</ul>
</li>
<li class="toctree-l1"><a class="reference internal" href="becomingbig.html">Becoming Big</a><ul>
<li class="toctree-l2"><a class="reference internal" href="becomingbig.html#why-consider-forking">Why consider Forking?</a></li>
<li class="toctree-l2"><a class="reference internal" href="becomingbig.html#scaling-like-a-pro">Scaling like a Pro</a></li>
<li class="toctree-l2"><a class="reference internal" href="becomingbig.html#dialogue-with-the-community">Dialogue with the Community</a></li>
</ul>
</li>
</ul>
</div>
</div>
<div class="section" id="api-reference">
<h2>API Reference<a class="headerlink" href="#api-reference" title="Permalink to this headline">¶</a></h2>
<p>If you are looking for information on a specific function, class or
method, this part of the documentation is for you.</p>
<div class="toctree-wrapper compound">
<ul>
<li class="toctree-l1"><a class="reference internal" href="api.html">API</a><ul>
<li class="toctree-l2"><a class="reference internal" href="api.html#application-object">Application Object</a></li>
<li class="toctree-l2"><a class="reference internal" href="api.html#blueprint-objects">Blueprint Objects</a></li>
<li class="toctree-l2"><a class="reference internal" href="api.html#incoming-request-data">Incoming Request Data</a></li>
<li class="toctree-l2"><a class="reference internal" href="api.html#response-objects">Response Objects</a></li>
<li class="toctree-l2"><a class="reference internal" href="api.html#sessions">Sessions</a></li>
<li class="toctree-l2"><a class="reference internal" href="api.html#session-interface">Session Interface</a></li>
<li class="toctree-l2"><a class="reference internal" href="api.html#test-client">Test Client</a></li>
<li class="toctree-l2"><a class="reference internal" href="api.html#application-globals">Application Globals</a></li>
<li class="toctree-l2"><a class="reference internal" href="api.html#useful-functions-and-classes">Useful Functions and Classes</a></li>
<li class="toctree-l2"><a class="reference internal" href="api.html#message-flashing">Message Flashing</a></li>
<li class="toctree-l2"><a class="reference internal" href="api.html#returning-json">Returning JSON</a></li>
<li class="toctree-l2"><a class="reference internal" href="api.html#template-rendering">Template Rendering</a></li>
<li class="toctree-l2"><a class="reference internal" href="api.html#configuration">Configuration</a></li>
<li class="toctree-l2"><a class="reference internal" href="api.html#extensions">Extensions</a></li>
<li class="toctree-l2"><a class="reference internal" href="api.html#useful-internals">Useful Internals</a></li>
<li class="toctree-l2"><a class="reference internal" href="api.html#signals">Signals</a></li>
<li class="toctree-l2"><a class="reference internal" href="api.html#class-based-views">Class Based Views</a></li>
<li class="toctree-l2"><a class="reference internal" href="api.html#url-route-registrations">URL Route Registrations</a></li>
<li class="toctree-l2"><a class="reference internal" href="api.html#view-function-options">View Function Options</a></li>
</ul>
</li>
</ul>
</div>
</div>
<div class="section" id="additional-notes">
<h2>Additional Notes<a class="headerlink" href="#additional-notes" title="Permalink to this headline">¶</a></h2>
<p>Design notes, legal information and changelog are here for the interested.</p>
<div class="toctree-wrapper compound">
<ul>
<li class="toctree-l1"><a class="reference internal" href="design.html">Design Decisions in Flask</a><ul>
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<li class="toctree-l2"><a class="reference internal" href="extensiondev.html#anatomy-of-an-extension">Anatomy of an Extension</a></li>
<li class="toctree-l2"><a class="reference internal" href="extensiondev.html#hello-flaskext">“Hello Flaskext!”</a></li>
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<li class="toctree-l2"><a class="reference internal" href="changelog.html#version-0-9">Version 0.9</a></li>
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