Jinja2 Changelog

Version 2.7

(codename to be selected, release date to be announced)

  • Choice and prefix loaders now dispatch source and template lookupseparately in order to work in combination with module loaders asadvertised.
  • Fixed filesizeformat.
  • Added a non-silent option for babel extraction.
  • Added urlencode filter that automatically quotes values forURL safe usage with utf-8 as only supported encoding. If applicationswant to change this encoding they can override the filter.
  • Accessing last on the loop context no longer causes the iteratorto be consumed into a list.

Version 2.6

(codename Convolution, released on July 24th 2011)

  • internal attributes now raise an internal attribute error now insteadof returning an undefined. This fixes problems when passing undefinedobjects to Python semantics expecting APIs.
  • traceback support now works properly for PyPy. (Tested with 1.4)
  • implemented operator intercepting for sandboxed environments. Thisallows application developers to disable builtin operators for bettersecurity. (For instance limit the mathematical operators to actualintegers instead of longs)
  • groupby filter now supports dotted notation for grouping by attributesof attributes.
  • scoped blocks now properly treat toplevel assignments and imports.Previously an import suddenly “disappeared” in a scoped block.
  • automatically detect newer Python interpreter versions before loading codefrom bytecode caches to prevent segfaults on invalid opcodes. The segfaultin earlier Jinja2 versions here was not a Jinja2 bug but a limitation inthe underlying Python interpreter. If you notice Jinja2 segfaulting inearlier versions after an upgrade of the Python interpreter you don’t haveto upgrade, it’s enough to flush the bytecode cache. This just no longermakes this necessary, Jinja2 will automatically detect these cases now.
  • the sum filter can now sum up values by attribute. This is a backwardsincompatible change. The argument to the filter previously was theoptional starting index which defaultes to zero. This now became thesecond argument to the function because it’s rarely used.
  • like sum, sort now also makes it possible to order items by attribute.
  • like sum and sort, join now also is able to join attributes of objectsas string.
  • the internal eval context now has a reference to the environment.
  • added a mapping test to see if an object is a dict or an object witha similar interface.

Version 2.5.5

  • (re-release of 2.5.4 with built documentation removed for filesize.
  • Released on October 18th 2010)
  • built documentation is no longer part of release.

Version 2.5.4

(bugfix release, released on October 17th 2010)

  • Fixed extensions not loading properly with overlays.
  • Work around a bug in cpython for the debugger that causes segfaultson 64bit big-endian architectures.

Version 2.5.3

(bugfix release, released on October 17th 2010)

  • fixed an operator precedence error introduced in 2.5.2. Statementslike “-foo.bar” had their implicit parentheses applied around thefirst part of the expression (“(-foo).bar”) instead of the morecorrect “-(foo.bar)”.

Version 2.5.2

(bugfix release, released on August 18th 2010)

  • improved setup.py script to better work with assumptions peoplemight still have from it (—with-speedups).
  • fixed a packaging error that excluded the new debug support.

Version 2.5.1

(bugfix release, released on August 17th 2010)

  • StopIteration exceptions raised by functions called from templatesare now intercepted and converted to undefineds. This solves alot of debugging grief. (StopIteration is used internally toabort template execution)
  • improved performance of macro calls slightly.
  • babel extraction can now properly extract newstyle gettext calls.
  • using the variable num in newstyle gettext for something elsethan the pluralize count will no longer raise a KeyError.
  • removed builtin markup class and switched to markupsafe. For backwardscompatibility the pure Python implementation still exists but ispulled from markupsafe by the Jinja2 developers. The debug supportwent into a separate feature called “debugsupport” and is disabledby default because it is only relevant for Python 2.4
  • fixed an issue with unary operators having the wrong precendence.

Version 2.5

(codename Incoherence, relased on May 29th 2010)

  • improved the sort filter (should have worked like this for along time) by adding support for case insensitive searches.
  • fixed a bug for getattribute constant folding.
  • support for newstyle gettext translations which result in anicer in-template user interface and more consistentcatalogs. (新样式 Gettext)
  • it’s now possible to register extensions after an environmentwas created.

Version 2.4.1

(bugfix release, released on April 20th 2010)

  • fixed an error reporting bug for undefineds.

Version 2.4

(codename Correlation, released on April 13th 2010)

  • the environment template loading functions now transparentlypass through a template object if it was passed to it. Thismakes it possible to import or extend from a template objectthat was passed to the template.
  • added a ModuleLoader that can load templates fromprecompiled sources. The environment now features a methodto compile the templates from a configured loader into a zipfile or folder.
  • the _speedups C extension now supports Python 3.
  • added support for autoescaping toggling sections and supportfor evaluation contexts (求值上下文).
  • extensions have a priority now.

Version 2.3.1

(bugfix release, released on February 19th 2010)

  • fixed an error reporting bug on all python versions
  • fixed an error reporting bug on Python 2.4

Version 2.3

(3000 Pythons, released on February 10th 2010)

  • fixes issue with code generator that causes unbound variablesto be generated if set was used in if-blocks and other smallidentifier problems.
  • include tags are now able to select between multiple templatesand take the first that exists, if a list of templates isgiven.
  • fixed a problem with having call blocks in outer scopes thathave an argument that is also used as local variable in aninner frame (#360).
  • greatly improved error message reporting (#339)
  • implicit tuple expressions can no longer be totally empty.This change makes {%if%}…{%endif%} a syntax errornow. (#364)
  • added support for translator comments if extracted via babel.
  • added with-statement extension.
  • experimental Python 3 support.

Version 2.2.1

(bugfix release, released on September 14th 2009)

  • fixes some smaller problems for Jinja2 on Jython.

Version 2.2

(codename Kong, released on September 13th 2009)

  • Include statements can now be marked with ignoremissing to skipnon existing templates.
  • Priority of not raised. It’s now possible to write not foo in bar_as an alias to _foo not in bar like in python. Previously the grammarrequired parentheses (not (foo in bar)) which was odd.
  • Fixed a bug that caused syntax errors when defining macros or using the{% call %} tag inside loops.
  • Fixed a bug in the parser that made {{foo[1,2]}} impossible.
  • Made it possible to refer to names from outer scopes in included templatesthat were unused in the callers frame (#327)
  • Fixed a bug that caused internal errors if names where used as iterationvariable and regular variable after the loop if that variable was unusedbefore the loop. (#331)
  • Added support for optional scoped modifier to blocks.
  • Added support for line-comments.
  • Added the meta module.
  • Renamed (undocumented) attribute “overlay” to “overlayed” on theenvironment because it was clashing with a method of the same name.
  • speedup extension is now disabled by default.

Version 2.1.1

(Bugfix release)

  • Fixed a translation error caused by looping over empty recursive loops.

Version 2.1

(codename Yasuzō, released on November 23rd 2008)

  • fixed a bug with nested loops and the special loop variable. Before thechange an inner loop overwrote the loop variable from the outer one afteriteration.
  • fixed a bug with the i18n extension that caused the explicit pluralizationblock to look up the wrong variable.
  • fixed a limitation in the lexer that made {{foo.0.0}} impossible.
  • index based subscribing of variables with a constant value returns anundefined object now instead of raising an index error. This was a bugcaused by eager optimizing.
  • the i18n extension looks up foo.ugettext now followed by _foo.gettext_if an translations object is installed. This makes dealing with customtranslations classes easier.
  • fixed a confusing behavior with conditional extending. loops were partiallyexecuted under some conditions even though they were not part of a visiblearea.
  • added sort filter that works like dictsort but for arbitrary sequences.
  • fixed a bug with empty statements in macros.
  • implemented a bytecode cache system. (字节码缓存)
  • the template context is now weakref-able
  • inclusions and imports “with context” forward all variables now, not onlythe initial context.
  • added a cycle helper called cycler.
  • added a joining helper called joiner.
  • added a compile_expression method to the environment that allows compilingof Jinja expressions into callable Python objects.
  • fixed an escaping bug in urlize

Version 2.0

(codename jinjavitus, released on July 17th 2008)

  • the subscribing of objects (looking up attributes and items) changed fromslightly. It’s now possible to give attributes or items a higher priorityby either using dot-notation lookup or the bracket syntax. This alsochanged the AST slightly. Subscript is gone and was replaced withGetitem and Getattr.

For more information see the implementation details.

  • added support for preprocessing and token stream filtering for extensions.This would allow extensions to allow simplified gettext calls in templatedata and something similar.

  • added jinja2.environment.TemplateStream.dump().

  • added missing support for implicit string literal concatenation.{{"foo""bar"}} is equivalent to {{"foobar"}}

  • else is optional for conditional expressions. If not given it evaluatesto false.

  • improved error reporting for undefined values by providing a position.

  • filesizeformat filter uses decimal prefixes now per default and can beset to binary mode with the second parameter.

  • fixed bug in finalizer

Version 2.0rc1

(no codename, released on June 9th 2008)

  • first release of Jinja2