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Parrot VM v1.3.0 Released
On behalf of the Parrot team, I'm proud to announce Parrot 1.3.0 "Andean Swift." Parrot is a virtual machine aimed at running all dynamic languages.
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Programming Languages
The most popular blog posts about programming languages on Hacker News. 1,929 posts.
1892
PEP 634 – Structural Pattern Matching: Specification
This PEP provides the technical specification for the match statement. It replaces PEP 622, which is hereby split in three parts:
1893
PEP 518 – Specifying Minimum Build System Requirements for Python Projects
This PEP specifies how Python software packages should specify what build dependencies they have in order to execute their chosen build system. As part of this specification, a new configuration file is introduced for software packages to use to specify...
1894
PEP 20 – The Zen of Python
Long time Pythoneer Tim Peters succinctly channels the BDFL’s guiding principles for Python’s design into 20 aphorisms, only 19 of which have been written down.
1895
Defer, Panic, and Recover
An introduction to the Go's defer, panic, and recover control flow mechanisms.
1896
PEP 554 – Multiple Interpreters in the Stdlib
CPython has supported multiple interpreters in the same process (AKA “subinterpreters”) since version 1.5 (1997). The feature has been available via the C-API. [c-api] Multiple interpreters operate in relative isolation from one another, which facilit...
1897
The Implementation of Functional Programming Languages
“The Implementation of Functional Languages” is a book about implementing functional programming languages using lazy graph reduction, and it divides into three parts. The first part describes how to translate a high-level functional language into an intermediate language, called the lambda calculus, incuding detailed…
1898
Defer, Panic, and Recover
An introduction to the Go's defer, panic, and recover control flow mechanisms.
1899
PEP 3131 – Supporting Non-ASCII Identifiers
This PEP suggests to support non-ASCII letters (such as accented characters, Cyrillic, Greek, Kanji, etc.) in Python identifiers.
1900
PEP 636 – Structural Pattern Matching: Tutorial
This PEP is a tutorial for the pattern matching introduced by PEP 634.
1901
Clojure - Getting Started
Clojure is a dynamic development environment where you interact with your program while you write it, growing and adding to it while it’s running. To work with Clojure you need an editor that supports evaluation in source files and structural editing (working with nested forms in addition to character editing).
1902
PEP 3113 – Removal of Tuple Parameter Unpacking
Tuple parameter unpacking is the use of a tuple as a parameter in a function signature so as to have a sequence argument automatically unpacked. An example is:
1903
Clojure - spec Guide
The spec library ( API docs ) specifies the structure of data, validates or conforms it, and can generate data based on the spec.
1904
0.4.1: Introducing Parse
One of the greatest feature of the Rebol language has always been its parsing engine, simply called Parse. It is an amazing piece of des...
1905
PEP 289 – Generator Expressions
This PEP introduces generator expressions as a high performance, memory efficient generalization of list comprehensions PEP 202 and generators PEP 255.
1906
Using Pointers in SPARK
In this blog post, I will present one of the most interesting additions to the community 2019 version of SPARK: pointer support. One of the core…
1907
1908
C11 and C17 Standard Support Arriving in MSVC
Please see our Visual Studio 2019 version 16.8 Preview 3 release notes for more of our latest features. Update: Windows 10 SDK version 2104 has been
1909
PEP 557 – Data Classes
This PEP describes an addition to the standard library called Data Classes. Although they use a very different mechanism, Data Classes can be thought of as “mutable namedtuples with defaults”. Because Data Classes use normal class definition syntax, y...
1910
PEP 394 – The “python” Command on Unix-Like Systems
This PEP outlines the behavior of Python scripts when the python command is invoked. Depending on a distribution or system configuration, python may or may not be installed. If python is installed its target interpreter may refer to python2 or python3. ...
1911
PEP 8 – Style Guide for Python Code
This document gives coding conventions for the Python code comprising the standard library in the main Python distribution. Please see the companion informational PEP describing style guidelines for the C code in the C implementation of Python.
1912
1913
Open-sourcing Haxl, a library for Haskell
Visit the post for more.
1914
PEP 572 – Assignment Expressions
This is a proposal for creating a way to assign to variables within an expression using the notation NAME := expr.
1915
PEP 374 – Choosing a distributed VCS for the Python project
Python Enhancement Proposals (PEPs)
1916
PEP 3104 – Access to Names in Outer Scopes
In most languages that support nested scopes, code can refer to or rebind (assign to) any name in the nearest enclosing scope. Currently, Python code can refer to a name in any enclosing scope, but it can only rebind names in two scopes: the local scope...
1917
Clojure - Deps and CLI Guide
In all the above scenarios you might want to use other Clojure and Java libraries (dependencies or 'deps'). These may be libraries you are writing locally, projects in git (e.g. on GitHub) or, commonly, libraries available in the Maven ecosystem and hosted by central repositories like Maven Central or Clojars.
1918
Clojure - Rationale
Customers and stakeholders have substantial investments in, and are comfortable with the performance, security and stability of, industry-standard platforms like the JVM. While Java developers may envy the succinctness, flexibility and productivity of dynamic languages, they have concerns about running on…
1919
PEP 373 – Python 2.7 Release Schedule
This document describes the development and release schedule for Python 2.7.
1920
Overview ⚡ Zig Programming Language
Focus on debugging your application rather than debugging your programming language knowledge.