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A simple extension to create a thumbs for the Flask

Project description

.. image::

.. image::


A simple extension to create a thumbs for the Flask


Use your favorite Python package manager to install the app from PyPI, e.g.


``pip install flask-thumbnails``

Add ``Thumbnail`` to your extension file:

.. code:: python

from flask import Flask
from flask_thumbnails import Thumbnail

app = Flask(__name__)

thumb = Thumbnail(app)

Add ``THUMBNAIL_MEDIA_ROOT`` and ``THUMBNAIL_MEDIA_URL`` in your settings:

.. code:: python

app.config['THUMBNAIL_MEDIA_ROOT'] = '/home/www/media'
app.config['THUMBNAIL_MEDIA_URL'] = '/media/'

Example usage

Use in Jinja2 template:

.. code:: html

<img src="{{ 'image.jpg'|thumbnail('200x200') }}" alt="" />
<img src="{{ 'image.jpg'|thumbnail('200x200', crop='fit', quality=100) }}" alt="" />


``crop='fit'`` returns a sized and cropped version of the image, cropped to the requested aspect ratio and size, `read more <>`_.

``quality=XX`` changes the quality of the output JPEG thumbnail, default ``90``.

Develop and Production


In production, you need to add media directory in you web server.


To service the uploaded files need a helper function, where ``/media/`` your settings ``app.config['THUMBNAIL_MEDIA_URL']``:

.. code:: python

from flask import send_from_directory

def media_file(filename):
return send_from_directory(app.config['THUMBNAIL_MEDIA_THUMBNAIL_ROOT'], filename)

Option settings

If you want to store the thumbnail in a folder other than the ``THUMBNAIL_MEDIA_THUMBNAIL_ROOT``, you need to set it manually:

.. code:: python

app.config['THUMBNAIL_MEDIA_THUMBNAIL_ROOT'] = '/home/www/media/cache'
app.config['THUMBNAIL_MEDIA_THUMBNAIL_URL'] = '/media/cache/'
app.config['THUMBNAIL_STORAGE_BACKEND'] = 'flask_thumbnails.storage_backends.FilesystemStorageBackend'

Migrate 0.X to 1.X

Since version 1.X all settings have a prefix ``THUMBNAIL_``. Example: ``MEDIA_ROOT`` -> ``THUMBNAIL_MEDIA_ROOT``.

Project details

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Files for Flask-thumbnails, version 1.0.6
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