Cheetah is an open source template engine and code generation tool.

yelp_cheetah is cheetah with everything we don't / shouldn't use removed.

We really recommend that you don't choose cheetah for new projects, and certainly not this hacked fork. If you're already using cheetah in a legacy project though, you might(?) find this useful.

For a high-level introduction to Cheetah please refer to the User's Guide at http://cheetahtemplate.org/learn.html

• Before hacking

• Correct dependencies

• Removed Cheetah Analyzer
• Removed textmate highlight support
• Remove logging of placeholders
• Remove Django support
• Make useAutoCalling default to False
• Remove #cache directive
• Remove Mondo
• Remove RecursiveNull
• Remove SiteHierarchy
• Remove turbocheetah
• Remove Servlet
• Remove silent placeholders ($!placeholder)
• Remove #errorCatcher directive
• Remove WebWare support
• Remove FileUtils
• Remove hasName
• Remove Indenter
• Remove #indent directive
• Remove cheetah eval c'$var' syntax
• Remove import hook, live compiling, compilation cache
• Remove CheetahWrapper
• Remove #I18n macro
• Improve cmdline interface
• Remove several magical imports (time, currentTime, etc.)
• Remove #unicode directive
• Remove #breakpoint directive
• Remove #unless directive
• Remove #repeate directive
• Remove #capture directive
• Improve compiling interface. There are now three functions: (compile_source, compile_file, compile_to_class)
• Remove #defmacro directive
• Remove #include directive
• Remove getFileContents
• Remove preprocessors
• Remove addSrcTimeToOutput setting
• Remove disabledDirectives setting
• Remove pre / post ParseDirective hooks
• Remove placeholder hooks
• Remove expression hooks
• Remove I18NFunctionName
• Remove EmptySingleLineMethods setting
• Remove allowWhitespaceAfterDirectiveStartToken
• Remove templateMetaclass setting
• Require unicode for compiling source
• Remove #transform directive
• Remove Websafe, Markdown, CodeHighlight, Maxlen, Strip filters
• Remove aliases for BaseFilter
• Remove namespaces argument for Template constructor
• Remove #stop directive
• Remove useFilters setting (always True)
• Remove allowPlaceholderFilterArgs setting
• Remove encoding setting
• Remove EOLSlurp feature
• Remove #raw directive
• Remove C implementation of filters
• Remove outputMethodsBeforeAttributes setting
• Remove defDocStrMsg setting
• Remove handlerForExtendsDirective setting
• Remove __str__ from all objects
• Remove support for pypy (Delete python implementation of NameMapper)
• Remove useStackFrames setting
• Remove #importsettings directive
• Remove #compiler-settings python directive
• Remove safeConvert
• Remove * imports
• Raise on searchlist collisions
• Fix bug with macros causing out-of-bounds when near end of source

• Raise on unknown macros
• Remove #echo directive
• Remove #* ... *# multiline comment syntax
• Remove version checking code
• Remove #arg directive
• Remove #closure directive
• Make compilation output deterministic
• Make <% ... %>
• Remove ability to specify argspecs in #implements
• Remove multiple inheritance from #extends
• Remove #compiler directive
• Remove global imports: (sys, os, os.path, 'builtin, 'getmtime, exists, types)
• Default useDottedNotation to false
• Remove allowNestedDefScopes setting
• Remove useSearchList setting
• Remove useKWsForPassingTrans setting
• Remove alwaysFilterNone setting
• Remove cheetah ternary #if ... then ... else ... directive
• Remove namespace argument from Template.init
• Support Python 3
• Expose a global __YELP_CHEETAH__ = True in compiled source
• Remove autoImportForExtends setting (always True)
• Disable #extends of an imported name
• Add setting future_unicode_literals for toggling unicode_literals in compiled source

• Rename Cheetah.Compiler and Cheetah.Parser to Cheetah.legacy_compiler and Cheetah.legacy_parser
• Remove #encoding directive, cheetah source is now invariantely UTF-8

• Add Cheetah.partial_template, a system for importable template functions.

• Make filters simple functions instead of classes
• Add and make default markupsafe filter

• Add #with directive
• 100% test coverage

• Add compile_directories

• Disallow dollarsigns on #def / #block name
• Disallow dollarsigns in function signatures
• Require argspec for #def
• Requres no argspec for #block
• Require no dollarsign in #set lvalue
• Disallow dollarsigns in macro arguments
• Disallow dollarsigns in #attr lvalue
• Forbid @classmethod / @staticmethod
• Remove #set module directive
• Add testing infrastructure for partial template testing

• Fix partial template testing infrastructure

• cheetah-compile takes directories

• dep argparse

• Invariantly create __init__.py in subdirectories

• Do not create __init__.py in __pycache__ directories

• Remove dollarsigns on for lvalues