python QR Code generator

Generate QR codes.

For a standard install (which will include pillow_ for generating images), run::

pip install qrcode[pil]

.. _pillow: https://pypi.python.org/pypi/Pillow

Usage

From the command line, use the installed qr script::

qr "Some text" > test.png

Or in Python, use the make shortcut function:

.. code:: python

import qrcode
img = qrcode.make('Some data here')

Advanced Usage

For more control, use the QRCode class. For example:

.. code:: python

import qrcode
qr = qrcode.QRCode(
    version=1,
    error_correction=qrcode.constants.ERROR_CORRECT_L,
    box_size=10,
    border=4,
)
qr.add_data('Some data')
qr.make(fit=True)

img = qr.make_image(fill_color="black", back_color="white")

From your command line::

qr --factory=svg-path "Some text" > test.svg
qr --factory=svg "Some text" > test.svg
qr --factory=svg-fragment "Some text" > test.svg

Or in Python:

.. code:: python

import qrcode
import qrcode.image.svg

if method == 'basic':
    # Simple factory, just a set of rects.
    factory = qrcode.image.svg.SvgImage
elif method == 'fragment':
    # Fragment factory (also just a set of rects)
    factory = qrcode.image.svg.SvgFragmentImage
else:
    # Combined path factory, fixes white space that may occur when zooming
    factory = qrcode.image.svg.SvgPathImage

img = qrcode.make('Some data here', image_factory=factory)

Two other related factories are available that work the same, but also fill the background of the SVG with white::

qrcode.image.svg.SvgFillImage
qrcode.image.svg.SvgPathFillImage

From your command line::

qr --factory=pymaging "Some text" > test.png

Or in Python:

.. code:: python

import qrcode
from qrcode.image.pure import PymagingImage
img = qrcode.make('Some data here', image_factory=PymagingImage)