History¶

v7.3.1¶

31 Mar 2024

Bugfixes¶

Override data_range in time_series to allow scale_?_integers to work. (#30)

v7.3.0¶

16 Jul 2023

Features¶

Require Python 3.8 or later.

v7.2.1¶

19 Jul 2021

Refreshed packaging.

v7.2.0¶

27 Dec 2020

#27: Switched to native svg namespace (PEP 420).

v7.1.1¶

31 Oct 2020

Refresh package metadata and minor cleanups.

v7.1.0¶

31 Mar 2020

#23: Plots now round labels to 4 digits of precision.

v7.0.0¶

(unreleased)

Require Python 3.6 or later.

6.1¶

15 May 2019

Rely on importlib.resources for loading resources from the package.
Packaging refresh.

6.0¶

26 Dec 2018

#26: Drop support for Python 3.4 and earlier (including 2.7).

5.0¶

26 Dec 2018

#24: Switched from pkg_resource-style namespace package for svg to a pkgutil style namespace package.

4.0.1¶

08 Aug 2018

#22: Now burn uses text mode to write the data, giving a more normal experience on Python 3.
Refreshed project metadata.

4.0¶

08 Apr 2017

Removed support for compress flag on Graphs. Simply invoke zlib.compress on the data if needed.
Graph.burn now returns the rendered SVG as a Unicode string without XML declaration and without pretty-printing. To customize the XML rendering, override or replace the Graph.render static method.

3.4.4¶

04 Jan 2017

#17: Fix issue in subclassed Line charts.

3.4.3¶

23 Dec 2016

Minor tweak to README for better rendering in PyPI.

3.4.2¶

23 Dec 2016

Update docs link.

3.4.1¶

04 Nov 2016

#16: Restore support for passing iterable data elements.

3.4¶

15 Aug 2016

Issue #14:

svg.charts.plot.Plot (and hence its subclass svg.charts.time_series.Plot) now accept data as a sequence of pairs. Example:

import svg.charts.plot

g = svg.charts.plot.Plot()
g.add_data(dict(title='Example',
                data=[(1, 1), (2, 4), (3, 9)]))

data point labels that are drawn when show_data_values = True can have their label changed from the default (which is the y-value) by giving a data item a .text attribute. It is convenient to used namedtuple() for this:

import svg.charts.plot
from collections import namedtuple

Datum = nametuple("Datum", 'x y text')

g = svg.charts.plot.Plot()
g.add_data(dict(title='Example',
                data=[Datum(1, 1, 'first'),
                      Datum(2, 4, 'second'),
                      Datum(3, 9, 'third')]))

(in fact data items can have any extra attribute; only .text is used currently)

3.3.1¶

30 Jul 2016

#13: Fix issues in lazy-evaluated iterators.

3.3¶

22 Mar 2016

#12: The library now provides an svg.charts.graph.DrawHooks mix-in for customizing the draw behavior.
Cleaned up documentation.

3.2¶

22 Mar 2016

#8: Subtitle is now rendering the subtitle and not the title again.

#9: Bar objects now expose a _fill_class method for overriding the default CSS fill class. It’s now possible to create a custom subclass that generates the fill based on the field index as well. For example:

class VerticalBar(svg.charts.bar.VerticalBar):
    key = False

    def _fill_class(self, dataset_index, field_index):
        fill_index = 1 + dataset_index + field_index*len(self.data)
        return 'fill%s' % fill_index

3.1¶

25 Apr 2015

Adding a couple small dependencies eliminated a lot of duplicated code in the util module.
Corrected error when stacked was used in Line charts.

3.0¶

23 Apr 2015

Dropped support for Python 2.6.
Requires setuptools for installation.
Filter out comments when parsing CSS.
Corrected errors in Graph.render_inline_styles.

2.3¶

21 Jan 2014

#4: Added hook in Graph to allow overriding of the attributes on the root SVG element. One can now override or monkeypatch Graph._get_root_attributes to alter the rendering of the root attributes such as width and height. For example, to omit width and height:
```
class MyPlot(plot.Plot):
    def _get_root_attributes(self):
        attrs = super(MyPlot, self)._get_root_attributes()
        del attrs['width']
        del attrs['height']
        return attrs
```

2.2.2¶

21 Jan 2014

#1: Fixed javascript ID names in TimeSeries labels.

2.2.1¶

21 Jan 2014

#5: Fixed references to class attributes in graph.py.

2.2¶

10 Nov 2013

SF Issue #1: Fixed installation on Unix systems again. Author’s preference for lowercase readme.txt was trumped by setuptools `#100 <https://bitbucket.org/pypa/setuptools/issue/100/>`_.
Moved hosting to BitBucket.
Established Continuous Integration Tests on Github mirror using Travis-CI.

2.1¶

23 Sep 2013

Project now builds and tests pass on Python 3 without 2to3.

2.0.9¶

12 Oct 2011

Corrected buggy logic in y-axis label rendering (thanks to Emmanuel Blot).
Converted to Unix line endings.

2.0.8¶

31 Jul 2011

Updated to latest cssutils with Python 3 support. Thanks Christof!
Fixed a few remaining issues with Python 3 compatibility.

2.0.7¶

02 Apr 2011

Fixed bug in rendering of Pie Chart styles.
Improved testing framework. Now samples are at least generated as part of the test suite.
Fixed bug in javascript when label ids had spaces. See #3139197.
Fixed build issue where package data wasn’t included due to 2to3 technique. Now using distribute technique and installation on Python 3 requires distribute.

2.0.6¶

27 Mar 2011

Fixed bug where x axis labels would not be rendered properly if the largest value was the same as the largest visible x value on the chart.

2.0.5¶

Altered the way CSS files are loaded, so they can be more easily customized by subclasses (and less dependent on the class names).

2.0.4¶

A small attempt to improve the documentation - added links to examples that already exist.

2.0.3¶

Fix IndexError in svg.charts.plot.Plot.field_size when there are only two values returned by float_range (in the case there are only two different ‘y’ values in the data) and scale_y_integers == True. Credit to Jean Schurger for the patch.
Fixed problem in setup.py installing on Unix OS (case sensitivity of readme.txt). Credit to Luke Miller and Jean Schurger for supplying a patch for this issue.

2.0.2¶

Updated cssutils dependency to 0.9.6 (currently in beta) to require the CSS profiles support.
Completed an SVG CSS profile according to the SVG 1.1 spec.

2.0.1¶

Added preliminary SVG CSS profile, suitable for stock CSS properties.

2.0¶

First major divergence from the Ruby reference implementation
Now implemented as a namespace package (svg.charts instead of svg_charts)
Changed XML processor to lxml
Enabled extensible css support using cssutils, greatly reducing static CSS
Renamed modules and methods to be more consistent with PEP-8 naming convention

Upgrading from 1.x to 2.0

I suggest removing SVG 1.0 from the python installation. This involves removing the SVG directory (or svg_chart*) from site-packages.

Change import statements to import from the new namespace, so:

from SVG import Bar
Bar.VerticalBar(...)

becomes:

from svg.charts import bar
bar.VerticalBar(...)

1.2¶

Bug fixes

1.1¶

First public release