coconut

See Coconut's documentation for more information on all of the features listed below.

New features:

• --mypy flag for automatic type-checking (including real-time in the REPL)
• Support for Python type annotations on all versions
• New enhanced partial application (e.g. func$(?, y)) (thanks @Sitwon!)
• Tail recursion elimination added in addition to tail call optimization
• Support for %magic commands on Coconut's Jupyter kernel
• Syntax highlighting for Coconut's Jupyter kernel
• Support for keyword and star arguments in pattern-matching function definition
• Support for pattern-matching in statement lambdas (e.g. def (x is int) -> x)
• Adds coconut-run command with shebang support (e.g. #!/usr/bin/env coconut-run)
• Support for COCONUT_STYLE environment variable for setting a default --style
• New CONTRIBUTING.md
• New Czech translation (thanks @Tovim!)

Fixes:

• Method calls are now valid implicit partials (e.g. .method(args))
• Compilation speed significantly increased
• Fixed running IPython %coconut command multiple times
• Fixed --watch compiling files twice (thanks @Nexus6!)
• Version restrictions on dependencies loosened
• Enhanced reversed and enumerate built-ins (thanks @Nexus6!)
• Fixed calling methods on integer literals (thanks @DomoSokrat!)

Colonel is the next major release of Coconut, and makes major feature additions and minor breaking changes over v1.1.1 [Brontosaurus]. See the updated documentation for more information on everything below.

Breaking changes:

• removed @recursive (now does auto tco)
• function composition (..) precedence changed
• removed --autopep8 flag

New features:

• automatic tail call optimization
• statement (multiline) lambdas
• command-line syntax highlighting
• --jobs flag
• assignment function notation
• @recursive_iterator
• star pattern matching
• implicit pass for data and class
• inline nonlocal and global statements
• --keeplines flag

v1.1.1 [Brontosaurus] makes only minor feature additions over v1.1.0 [Brontosaurus], and should be fully backwards-compatible. The major changes were:

• Adding a --watch flag (#99, #106, thanks @Boscillator!)
• Improving Jupyter / IPython console autocompletion (#114)
• Adding methodcaller implicit partial (#112)
• Adding links to 3rd party Vim and Emacs highlighters (thanks, @manicmaniac and @NickSeagull!)
• Adding pip install coconut[...] as a way to install optional dependencies

Brontosaurus makes notable feature additions over v1.0.0 [Albatross], but should be fully backwards-compatible. The major changes were:

• Adding addpattern and prepattern built-ins (#92, #103)
• Changing recommended file extension from .coc to .coco (#88)
• Making interpreter print the result of an expression (#100, thanks @Boscillator!)
• Fixing IPython / Jupyter kernel support (#97)
• Adding support for guards in pattern-matching function definition (#98)
• Upgrading to pyparsing 2.1.5

Albatross is the first production release (v1.0.0) of the Coconut programming language. No new features have been added since Pinnate (v0.4.1), although there have been major stability improvements. For documentation, see our new website at http://coconut-lang.org.

Pinnate (v0.4.1) is the first candidate release for v1.0.0. The language has become relatively stable and is unlikely to change much until a release is selected for v1.0.0.

Massive changes have been made to Coconut since Odisha (v0.3.6). If you've been following Coconut development, you should read the new tutorial and go over the new documentation to familiarize yourself with all the changes.

Pinnate is the type of leaf on the Coconut palm.

Major Changes:

• New: --package or -p and --standalone or -a flags for forcing the type of compilation to perform
• --print or -p is now --display or -d (-d is no longer an alias of --debug)
• Fixes issues in data mutability and augmented assignment
• Significantly increases compilation speed

Odisha is a part of India famous for its coconuts.

Major Changes:

• New: Built-in consume function for efficiently exhausting iterators
• New: Only recompiles changed files (will recompile all files if --force is passed)
• Improves (-) to support subtraction and negation
• Improves Python-version-cross-compatibility for str, bytes, and open
• Warns on mixing of tabs and spaces even if --strict isn't passed
• Changes coconut.convenience.setup function

Cocos Nucifera is the scientific name for the coconut tree.

Major Changes:

• New: Built-in datamaker function for writing data.__new__ constructors
• Removes itemgetter, attrgetter, and methodcaller from built-ins in favor of implicit partial application
• Supports slice objects in iterator slicing
• Fixes incompatibility with newest pyparsing

Macapuno is a type of mutant coconut commonly used in desserts.

Major Changes:

• New: In-place lazy chaining
• New: Enhanced imaginary literals
• Fixed error message line numbers
• Fixed --runing a file with imports
• Fixed interpreter scoping

Lauric acid is the primary fatty acid found in coconuts.

Major Changes:

• New: Lazy chaining
• New: Head-last pattern-matching
• New: Lazy list pattern-matching
• Fixed empty and one-item lazy lists
• Improved Python version cross-compatibility
• Fixed interpreter errors

Kopyor is the Indonesian name for a macapuno coconut.

Major Changes:

• New: Lazy lists
• New: Pattern-matching function definition
• New: Enhanced except statements
• New: __coconut_version__ built-in
• def is now mandatory in mathematical function definition
• Match failures now raise MatchError instead of ValueError
• Added coconut.convenience.parse(mode="exec")

Jawz Hindi is the Arabic word for Coconut, translated literally as Indian Nut.

Major Changes:

• New: Destructuring assignment
• New: Implicit partial application
• New: Additional pipeline operators
• Changed non-decimal integer syntax from 101_2 to 2_101
• Improved error messages
• coconut.convenience.version("full") is now coconut.convenience.version("spec")

Ilocos is an area in the Philippines that is a major producer of coconuts.

Major Changes:

• New: Infix function definition
• New: --target parameter
• New: Support for Python 3.5 syntax
• More Python-like interpreter

Hawaii is one of the most iconic homes of the coconut tree.

Major Changes:

• New: case blocks
• New: Code passthrough
• New: Checks in match statements
• More Pythonic list and tuple matching
• Fixed module docstrings
• Reduced header size

Guam was once home to many coconut plantations until they were destroyed by the coconut rhinoceros beetle.

Major Changes:

• New: IPython Support
• Improved Backtick Calling
• Improved Convenience Functions
• Improved Python 2/3 Universalizability
• Improved Error Messages
• Fixed Match Statement Errors
• --exec is now --code

Fiji is an island home to many coconut trees, including the eponymous Fiji Dwarf.

Major Changes:

• New: Match Statements
• New: Built-Ins itemgetter, attrgetter, methodcaller, dropwhile, and tee
• New: Enhanced Set Literals
• New: Enhanced Decorators
• New: Enhanced Else Statements
• --code is now --exec

Eocene is the period in which it is believed the earliest coconut trees lived.

Fixes lots and lots of bugs, finishes the documentation, and adds --print, --quiet, and --nowrite flags.

Drupe is the category of fruit that the coconut belongs to.

Adds data blocks and the takewhile built-in, removes zipwith, fixes --code and --run.

Copra is the dried meat of a coconut used to create coconut oil.

The first version of Coconut to be featured on the Python Package Index.

Bermuda is the furthest north location for the natural growth of the coconut tree.