WeasyPrint changelog¶
Versions 0.42.x will only get simple bug fixes backported from the master branch. New features, opitimizations and complex bug fixes will only be added to the 43+ versions that don’t support Python 2 anymore.
Do not rely on future versions, development on the 0.x branch may be stopped at any moment.
Version 0.42.3¶
Released on 2018-03-27.
Bug fixes:
#583: Fix floating-point number error to fix floating box layout
#586: Don’t optimize resume_at when splitting lines with trailing spaces
#582: Fix table layout with no overflow
#580: Fix inline box breaking function
#576: Split replaced_min_content_width and replaced_max_content_width
#574: Respect text direction and don’t translate rtl columns twice
#569: Get only first line’s width of inline children to get linebox width
Version 0.42.2¶
Released on 2018-02-04.
Bug fixes:
#560: Fix a couple of crashes and endless loops when breaking lines.
Version 0.42¶
Released on 2017-12-26.
WeasyPrint is not tested with (end-of-life) Python 3.3 anymore.
This release is probably the last version of the 0.x series.
Next version may include big changes:
end of Python 2.7 support,
initial support of bidirectional text,
initial support of flexbox,
improvements for speed and memory usage.
New features:
#532: Support relative file URIs when using CLI.
Bug fixes:
#553: Fix slow performance for pre-formatted boxes with a lot of children.
#409: Don’t crash when rendering some tables.
#39: Fix rendering of floats in inlines.
#301: Split lines carefully.
#530: Fix root when frozen with Pyinstaller.
#534: Handle SVGs containing images embedded as data URIs.
#360: Fix border-radius rendering problem with some PDF readers.
#525: Fix pipenv support.
#227: Smartly handle replaced boxes with percentage width in auto-width parents.
#520: Don’t ignore CSS @page rules that are imported by an @import rule.
Version 0.41¶
Released on 2017-10-05.
WeasyPrint now depends on pdfrw >= 0.4.
New features:
#471: Support page marks and bleed.
Bug fixes:
#513: Don’t crash on unsupported image-resolution values.
#506: Fix @font-face use with write_* methods.
#500: Improve readability of _select_source function.
#498: Use CSS prefixes as recommanded by the CSSWG.
#441: Fix rendering problems and crashes when using @font-face.
bb3a4db: Try to break pages after a block before trying to break inside it.
1d1654c: Fix and test corner cases about named pages.
Documentation:
Version 0.40¶
Released on 2017-08-17.
WeasyPrint now depends on cssselect2 instead of cssselect and lxml.
New features:
#57: Named pages.
Unprefix properties, see #498.
Add a “verbose” option logging the document generation steps.
Bug fixes:
Version 0.39¶
Released on 2017-06-24.
Bug fixes:
Fix the use of WeasyPrint’s URL fetcher with CairoSVG.
Version 0.38¶
Released on 2017-06-16.
Bug fixes:
#477: Don’t crash on font-face’s src attributes with local functions.
Version 0.37¶
Released on 2017-06-15.
WeasyPrint now depends on tinycss2 instead of tinycss.
New features:
#437: Support local links in generated PDFs.
Bug fixes:
Version 0.36¶
Released on 2017-02-25.
New features:
Bug fixes:
#411: Typos fixed in command-line help.
Version 0.32¶
Released on 2016-11-17.
New features:
#28: Support @font-face on Linux.
Support CSS fonts level 3 almost entirely, including OpenType features.
#253: Support presentational hints (optional).
Support break-after, break-before and break-inside for pages and columns.
#384: Major performance boost.
Bux fixes:
#368: Respect white-space for shrink-to-fit.
#382: Fix the preferred width for column groups.
Handle relative boxes in column-layout boxes.
Documentation:
Add more and more documentation about Windows installation.
#355: Add fonts requirements for tests.
Version 0.31¶
Released on 2016-08-28.
New features:
#124: Add MIME sniffing for images.
#60: CSS Multi-column Layout.
#197: Add hyphens at line breaks activated by a soft hyphen.
Bux fixes:
#132: Fix Python 3 compatibility on Windows.
Documentation:
#329: Add documentation about installation on Windows.
Version 0.27¶
Released on 2016-04-08.
New features:
Bug fixes:
#307: Fix the layout of cells larger than their tables.
Documentation:
The website is now on GitHub Pages, the documentation is on Read the Docs.
#297: Rewrite the CSS chapter of the documentation.
Version 0.26¶
Released on 2016-01-29.
New features:
Support the empty-cells attribute.
Respect table, column and cell widths.
Bug fixes:
#172: Unable to set table column width on tables td’s.
#151: Table background colour bleeds beyond table cell boundaries.
#260: TypeError: unsupported operand type(s) for +: ‘float’ and ‘str’.
#288: Unwanted line-breaks in bold text.
#286: AttributeError: ‘Namespace’ object has no attribute ‘attachments’.
Version 0.24¶
Released on 2015-08-04.
New features:
#174: Basic support for Named strings.
Bug fixes:
#207: Draw rounded corners on replaced boxes.
#224: Rely on the font size for rounding bug workaround.
#31: Honor the vertical-align property in fixed-height cells.
#202: Remove unreachable area/border at bottom of page.
#225: Don’t allow unknown units during line-height validation.
Fix some wrong conflict resolutions for table borders with inset and outset styles.
Version 0.23¶
Released on 2014-09-16.
Bug fixes:
#196: Use the default image sizing algorithm for images’s preferred size.
#194: Try more library aliases with
dlopen()
.#201: Consider
page-break-after-avoid
when pushing floats to the next page.#217: Avoid a crash on zero-sized background images.
Release process:
Start testing on Python 3.4 on Travis-CI.
Version 0.22¶
Released on 2014-05-05.
New features:
Bug fixes:
#169: Fix a crash on percentage-width columns in an auto-width table.
#168: Make
<fieldset>
a block in the user-agent stylesheet.#175: Fix some
dlopen()
library loading issues on OS X.#183: Break to the next page before a float that would overflow the page. (It might still overflow if it’s bigger than the page.)
#188: Require a recent enough version of Pyphen
Release process:
Drop Python 3.1 support.
Set up [Travis CI](http://travis-ci.org/) to automatically test all pushes and pull requests.
Start testing on Python 3.4 locally. (Travis does not support 3.4 yet.)
Version 0.21¶
Released on 2014-01-11.
New features:
Add the overflow-wrap property, allowing line breaks inside otherwise-unbreakable words. Thanks Frédérick Deslandes!
Add the image-resolution property, allowing images to be sized proportionally to their intrinsic size at a resolution other than 96 image pixels per CSS
in
(ie. one image pixel per CSSpx
)
Bug fixes:
#145: Fix parsing HTML from an HTTP URL on Python 3.x
#40: Use more general hyphenation dictionnaries for specific document languages. (E.g. use
hyph_fr.dic
forlang="fr_FR"
.)#26: Fix
min-width
andmax-width
on floats.#100: Fix a crash on trailing whitespace with
font-size: 0
#82: Borders on tables with
border-collapse: collapse
were sometimes drawn at an incorrect position.#30: Fix positioning of images with
position: absolute
.#118: Fix a crash when using
position: absolute
inside aposition: relative
element.Fix
visibility: collapse
to behave likevisibility: hidden
on elements other than table rows and table columns.#147 and #153: Fix dependencies to require lxml 3.0 or a more recent version. Thanks gizmonerd and Thomas Grainger!
#152: Fix a crash on percentage-sized table cells in auto-sized tables. Thanks Johannes Duschl!
Version 0.20.2¶
Released on 2013-12-18.
Fix #146: don’t crash when drawing really small boxes with dotted/dashed borders
Version 0.20.1¶
Released on 2013-12-16.
Version 0.20¶
Released on 2013-12-14.
Version 0.19.2¶
Released on 2013-06-18.
Bug fix release:
Fix #88:
text-decoration: overline
not being drawn above the textBug fix: Actually draw multiple lines when multiple values are given to
text-decoration
.Use the font metrics for text decoration positioning.
Bug fix: Don’t clip the border with
overflow: hidden
.Fix #99: Regression: JPEG images not loading with cairo 1.8.x.
Version 0.19.1¶
Released on 2013-04-30.
Bug fix release:
Fix incorrect intrinsic width calculation leading to unnecessary line breaks in floats, tables, etc.
Tweak border painting to look better
Fix unnecessary page break before big tables.
Fix table row overflowing at the bottom of the page when there are margins above the table.
Fix
position: fixed
to actually repeat on every page.Fix #76: repeat
<thead>
and<tfoot>
elements on every page, even with table border collapsing.
Version 0.19¶
Released on 2013-04-18.
Add support for
linear-gradient()
andradial-gradient
in background images.Add support for the
ex
andch
length units. (1ex
is based on the font instead of being always0.5em
as before.)Add experimental support for Level 4 hyphenation properties.
Drop support for CFFI < 0.6 and cairocffi < 0.4.
Many bug fixes, including:
Version 0.18¶
Released on 2013-03-30.
Add support for Level 3 backgrounds, including multiple background layers per element/box.
Forward-compatibility with (future releases of) cairocffi 0.4+ and CFFI 0.6+.
Bug fixes:
Avoid some unnecessary line breaks for elements sized based on their content (aka. “shrink-to-fit”) such as floats and page headers.
Allow page breaks between empty blocks.
Fix #66: Resolve images’ auto width from non-auto height and intrinsic ratio.
Fix #21: The
data:
URL scheme is case-insensitive.Fix #53: Crash when backtracking for
break-before/after: avoid
.
Version 0.17.1¶
Released on 2013-03-18.
Bug fixes:
Fix #41: GObject initialization when GDK-PixBuf is not installed.
Fix #42: absolute URLs without a base URL (ie. document parsed from a string.)
Fix some whitespace collapsing bugs.
Fix absolutely-positioned elements inside inline elements.
Fix URL escaping of image references from CSS.
Fix #49: Division by 0 on dashed or dotted border smaller than one dot/dash.
Fix #44: bad interaction of
page-break-before/after: avoid
and floats.
Version 0.17¶
Released on 2013-02-27.
Added text hyphenation with the
-weasy-hyphens
property.When a document includes JPEG images, embed them as JPEG in the PDF output. This often results in smaller PDF file size compared to the default deflate compression.
Switched to using CFFI instead of PyGTK or PyGObject-introspection.
Layout bug fixes:
Correctly trim whitespace at the end of lines.
Fix some cases with floats within inline content.
Version 0.16¶
Released on 2012-12-13.
Add the
zoom
parameter toHTML.write_pdf()
andDocument.write_pdf()
Fix compatibility with old (and buggy) pycairo versions. WeasyPrint is now tested on 1.8.8 in addition to the latest.
Fix layout bugs related to line trailing spaces.
Version 0.15¶
Released on 2012-10-09.
Add a low-level API that enables painting pages individually on any cairo surface.
Backward-incompatible change: remove the
HTML.get_png_pages()
method. The new low-level API covers this functionality and more.Add support for the
font-stretch
property.Add support for
@page:blank
to select blank pages.New Sphinx-based and improved docs
Bug fixes:
Importing Pango in some PyGTK installations.
Layout of inline-blocks with vertical-align: top or bottom.
Do not repeat a block’s margin-top or padding-top after a page break.
Performance problem with large tables split across many pages.
Anchors and hyperlinks areas now follow CSS transforms. Since PDF links have to be axis-aligned rectangles, the bounding box is used. This may be larger than expected with rotations that are not a multiple of 90 degrees.
Version 0.14¶
Released on 2012-08-03.
Add a public API to choose media type used for @media. (It still defaults to
print
). Thanks Chung Lu!Add
--base-url
and--resolution
to the command-line API, making it as complete as the Python one.Add support for the
<base href="...">
element in HTML.Add support for CSS outlines
Switch to gdk-pixbuf instead of Pystacia for loading raster images.
Bug fixes:
Handling of filenames and URLs on Windows
Unicode filenames with older version of py2cairo
base_url
now behaves as expected when set to a directory name.Make some tests more robust
Version 0.13¶
Released on 2012-07-23.
Add support for PyGTK, as an alternative to PyGObject + introspection. This should make WeasyPrint easier to run on platforms that not not have packages for PyGObject 3.x yet.
Bug fix: crash in PDF outlines for some malformed HTML documents
Version 0.12¶
Released on 2012-07-19.
Add support for collapsed borders on tables. This is currently incompatible with repeating header and footer row groups on each page: headers and footers are treated as normal row groups on table with
border-collapse: collapse
.Add
url_fetcher
to the public API. This enables users to hook into WeasyPrint for fetching linked stylesheets or images, eg. to generate them on the fly without going through the network. This enables the creation of Flask-WeasyPrint.
Version 0.11¶
Released on 2012-07-04.
Add support for floats and clear. Together with various bug fixes, this enables WeasyPrint to pass the Acid2 test! Acid2 is now part of our automated test suite.
Add support for the width, min-width, max-width, height, min-height and max-height properties in @page. The size property is now the size of the page’s containing block.
Switch the Variable Dimension rules to the new proposal. The previous implementation was broken in many cases.
The
image-rendering
,transform
,transform-origin
andsize
properties are now unprefixed. The prefixed form (eg. -weasy-size) is ignored but gives a specific warning.
Version 0.10¶
Released on 2012-06-25.
Add
get_png_pages()
to the public API. It returns each page as a separate PNG image.Add a
resolution
parameter for PNG.Add WeasyPrint Navigator, a web application that shows WeasyPrint’s output with clickable links. Yes, that’s a browser in your browser. Start it with
python -m weasyprint.navigator
Add support for vertical-align: top and vertical-align: bottom
Add support for page-break-before: avoid and page-break-after: avoid
Bug fixes
Version 0.9¶
Released on 2012-06-04.
Relative, absolute and fixed positioning
Proper painting order (z-index)
In PDF: support for internal and external hyperlinks as well as bookmarks.
Added the
tree
parameter to theHTML
class: accepts a parsed lxml object.Bug fixes, including many crashes.
Bookmarks can be controlled by the -weasy-bookmark-level
and
-weasy-bookmark-label
properties, as described in CSS Generated Content
for Paged Media Module.
The default UA stylesheet sets a matching bookmark level on all <h1>
to <h6>
elements.
Version 0.8¶
Released on 2012-05-07.
Switch from cssutils to tinycss as the CSS parser.
Switch to the new cssselect, almost all level 3 selectors are supported now.
Support for inline blocks and inline tables
Automatic table layout (column widths)
Support for the
min-width
,max-width
,min-height
andmax-height
properties, except on table-related and page-related boxes.Speed improvements on big stylesheets / small documents thanks to tinycss.
Many bug fixes
Version 0.7¶
Released on 2012-03-21.
Support page breaks between table rows
Support for the
orphans
andwidows
properties.Support for
page-break-inside: avoid
Bug fixes
Only avoiding page breaks before/after an element is still missing.
Version 0.6.1¶
Released on 2012-03-01.
Fix a packaging bug. (Remove use_2to3 in setup.py. We use the same codebase for Python 2 and 3.)
Version 0.6¶
Released on 2012-02-29.
Backward incompatible: completely change the Python API. See the documentation: http://weasyprint.org/using/#as-a-python-library
Backward incompatible: Proper margin collapsing. This changes how blocks are rendered: adjoining margins “collapse” (their maximum is used) instead of accumulating.
Support images in
embed
orobject
elements.Switch to pystacia instead of PIL for raster images
Add compatibility with CPython 2.6 and 3.2. (Previously only 2.7 was supported)
Many bug fixes
Version 0.5¶
Released on 2012-02-08.
Support for the
overflow
andclip
properties.Support for the
opacity
property from CSS3 Colors.Support for CSS 2D Transforms. These are prefixed, so you need to use
-weasy-transform
and-weasy-transform-origin
.
Version 0.4¶
Released on 2012-02-07.
Support
text-align: justify
,word-spacing
andletter-spacing
.Partial support for CSS3 Paged Media: page size and margin boxes with page-based counters.
All CSS 2.1 border styles
Fix SVG images with non-pixel units. Requires CairoSVG 0.3
Support for
page-break-before
andpage-break-after
, except for the valueavoid
.Support for the
background-clip
,background-origin
andbackground-size
from CSS3 (but still with a single background per element)Support for the
image-rendering
from SVG. This one is prefixed, use-weasy-image-rendering
. It only has an effect on PNG output.
Version 0.3¶
Released on 2011-12-13.
Backward-incompatible change: the ‘size’ property is now prefixed (since it is in an experimental specification). Use ‘-weasy-size’ instead.
cssutils 0.9.8 or higher is now required.
Support SVG images with CairoSVG
Support generated content: the
:before
and:after
pseudo-elements, thecontent
,quotes
andcounter-*
properties.Support ordered lists: all CSS 2.1 values of the
list-style-type
property.New user-agent stylesheet with HTML 5 elements and automatic quotes for many languages. Thanks Peter Moulder!
Disable cssutils validation warnings, they are redundant with WeasyPrint’s.
Add
--version
to the command-line script.Various bug fixes
Version 0.2¶
Released on 2011-11-25.
Support for tables.
Support the box-sizing property from CSS 3 Basic User Interface
Support all values of vertical-align except top and bottom. They are interpreted as text-top and text-bottom.
Minor bug fixes
Tables have some limitations: Only the fixed layout and separate border model are supported. There are also no page break inside tables so a table higher than a page will overflow.
Version 0.1¶
Released on 2011-10-28.
First packaged release. Supports “simple” CSS 2.1 pages: there is no support for floats, tables, or absolute positioning. Other than that most of CSS 2.1 is supported, as well as CSS 3 Colors and Selectors.