Mailman 3 November 2016 - Python-announce-list

The Real-Time Use of Python in Data Science World!
by Anita Goyal 07 Mar '20

07 Mar '20

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PyDev 5.4.0 Released
by Fabio Zadrozny 30 Nov '16

30 Nov '16

PyDev 5.4.0 Released Release Highlights: ------------------------------- * **Important** PyDev now requires Java 8 and Eclipse 4.6 (Neon) onwards. * PyDev 5.2.0 is the last release supporting Eclipse 4.5 (Mars). * If you enjoy PyDev, please show your appreciation through its Patreon crowdfunding: https://www.patreon.com/fabioz. * **Initial support for Python 3.6** * Code analysis for expressions on f-strings. * Syntax highlighting on f-strings. * Handling of underscores in numeric literals. * Parsing (but still not using) variable annotations. * Parsing asynchronous generators and comprehensions. * **Launching** * Improved console description of the launch. * Support launching files with **python -m module.name** (instead of python module/name.py). **Note**: Has to be enabled at **Preferences > PyDev > Run**. * **Debugger** * Shows return values (may be disabled on preferences > PyDev > Debug). * When the user is waiting for some input, it'll no longer try to evaluate the entered contents. * Fix for multiprocess debugging when the debugger is started with a programmatic breakpoint (pydevd.settrace). * **Unittest integration** * Bugfixes in the pytest integration related to unicode errors. * unittest subtests are now properly handled in the PyDev unittest runner. * The currently selected tests are persisted. * **Others** * In Linux, when applying a completion which would automatically add an import, if the user focuses the completion pop-up (with Tab) and applies the completion with Shift+Enter, a local import is properly made. What is PyDev? --------------------------- PyDev is an open-source Python IDE on top of Eclipse for Python, Jython and IronPython development. It comes with goodies such as code completion, syntax highlighting, syntax analysis, code analysis, refactor, debug, interactive console, etc. Details on PyDev: http://pydev.org Details on its development: http://pydev.blogspot.com What is LiClipse? --------------------------- LiClipse is a PyDev standalone with goodies such as support for Multiple cursors, theming, TextMate bundles and a number of other languages such as Django Templates, Jinja2, Kivy Language, Mako Templates, Html, Javascript, etc. It's also a commercial counterpart which helps supporting the development of PyDev. Details on LiClipse: http://www.liclipse.com/ Cheers, -- Fabio Zadrozny ------------------------------------------------------ Software Developer LiClipse http://www.liclipse.com PyDev - Python Development Environment for Eclipse http://pydev.org http://pydev.blogspot.com PyVmMonitor - Python Profiler http://www.pyvmmonitor.com/

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Vulture 0.11
by Jendrik Seipp 27 Nov '16

27 Nov '16

vulture - Find dead code ======================== Vulture finds unused classes, functions and variables in your code. This helps you cleanup and find errors in your programs. If you run it on both your library and test suite you can find untested code. Due to Python's dynamic nature, static code analyzers like vulture are likely to miss some dead code. Also, code that is only called implicitly may be reported as unused. Nonetheless, vulture can be a helpful tool for higher code quality. Download ======== http://pypi.python.org/pypi/vulture Features ======== * fast: uses static code analysis * lightweight: only one module * tested: tests itself and has 100% test coverage * complements pyflakes and has the same output syntax * supports Python 2.6, 2.7 and 3.x News ==== * Use the system's default encoding when reading files. * Report syntax errors instead of aborting. Cheers, Jendrik

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attrs 16.3.0
by Hynek Schlawack 26 Nov '16

26 Nov '16

Dear fellow Pythonistas, I’m very happy to announce attrs 16.3.0, the Python library the makes you love writing classes again! If you need a refresher why you should use attrs, have a look at “The One Python Library Everyone Needs” <https://glyph.twistedmatrix.com/2016/08/attrs.html> written by no one less than Glyph himself. It’s still 100% free of magic but 100% full of convenience! This version comes with two major new features I’d like to point out: 1. Attribute Metadata ================ There is a much nicer way to extend attrs now by using attribute metadata. If you’re thinking Golang’s struct tags, it’s close! However instead of exposing them to the users, it’s much nicer to *wrap* attrs and use metadata to bring the declarative approach to new areas. For example this code will automatically load its configuration from env variables (as per 12Factor App: <https://12factor.net/config>): ``` @app_config(prefix="APP", vault_prefix="WHOIS_{env}") class WhoisConfig: @app_config class Prometheus: address = env_var(default="127.0.0.1") port = env_var(default="0") consul_token = env_var_from_vault() env = env_var() prometheus = env_var_group(Prometheus) if __name__ == '__main__': ac = environ_to_app_config(WhoisConfig) print(ac) ``` Running it gives you: ``` $ env APP_ENV=dev APP_PROMETHEUS_PORT=7000 SECRET_WHOIS_DEV_APP_PROMETHEUS_CONSUL_TOKEN=abc python app.py WhoisConfig(env='dev', prometheus=Prometheus(address='127.0.0.1', port='7000', consul_token='abc')) ``` (If you’re interested in the implementation of app_config, env_var, env_var_from_vault, env_var_group, and environ_to_app_config, have a look at <https://gist.github.com/hynek/78fef47fea3cbc6b683cd8ab0fb68567> – it’s 87 LoC including empty lines. I may or may not release a PyPI package one day) 2. Post Initialization Hooks ==================== This is an often requested feature (just look at all those enthusiastic bikeshed painters: <https://github.com/hynek/attrs/issues/68>) and allows you to define code that runs after the generated __init__ method. This should make life easier when subclassing third party classes or if you want to derive attributes from others. Full Changelog =========== - Attributes now can have user-defined metadata which greatly improves attrs's extensibility. #96 - Allow for a __attrs_post_init__ method that -- if defined -- will get called at the end of the attrs-generated __init__ method. #111 - Add @attr.s(str=True) that will optionally create a __str__ method that is identical to __repr__. This is mainly useful with Exceptions and other classes that rely on a useful __str__ implementation but overwrite the default one through a poor own one. Default Python class behavior is to use __repr__ as __str__ anyways. If you tried using attrs with Exceptions and were puzzled by the tracebacks: this option is for you. - Don't overwrite __name__ with __qualname__ for attr.s(slots=True) classes. #99 Links ==== PyPI: <https://pypi.org/project/attrs/> Documentation: <http://attrs.org/> GitHub: <https://github.com/hynek/attrs> Cheers, Hynek

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ANN: JavaScrypthon 0.5, now with embedded evaluation of transpiled code
by Alberto Berti 26 Nov '16

26 Nov '16

Hi all, i'm pleased to announce that JavaScripthon 0.5 has been released to PyPI. JavaScrypthon can translate a subset of Python 3.5 code to ES6 JavaScript producing beautiful and lean code, while supporting some of the latest Python features. Changelog (https://github.com/azazel75/metapensiero.pj/blob/master/CHANGES.rst): - translate ``tmpl("A string with js ${interpolation}")`` to ES6 template literals; - preliminary support to translate names like ``d_foo`` and ``dd_bar`` to ``$foo`` and ``$$bar``; - addded translation of the ``assert`` statement; - fixed a bug in ``try...except...finally`` statement when there's no ``except`` section; - added translation for ``foo is not bar`` that seems to have dedicated ast node; - if the function is defined in a method but starts with ``fn_`` do not convert it to an arrow function. Useful to *not* maintain ``this``; - added translation for ``callable`` and ``hasattr/getattr/setattr``; - updated for loops to support more than one target, so now its possible to write loops like ``for k, v in iterable(a_map):``; - updated documentation; - added a new cli option ``-s`` to translate source from the command line or the standard input; - fixed a pair of bugs on sourcemaps; - added a new cli option ``--eval`` to also evaluate the produced JavaScript using the embedded interpreter; - added a new cli option ``--dump-ast`` to print out the ast tree of the passed in string; - added sorting to the rendered snippets/decorators/assignments so that their order does not change at every ricompilation; - do not re-declare variables declare in outer scopes; - updated BabelJS to version 6.18.1; - allow to import modules with dashes inside by using dunder-inside-words notation (``foo__bar`` becomes ``foo-bar``); - reuse JavaScript interpreter context to speedup translation; - update ``in`` operator to support ES6 collections; - added support for method and class decorators; - added support for class properties and descriptors; - add ``for`` loop over JS iterables; - allow to loop over inherited properties; - fix a bug on ``type()`` translation; - support for ``range()`` steps; - add support for generator functions and ``yield`` and ``yield from`` expressions; - optionally load babel-polyfill before evaluating code; - fix a bug on sourcemaps having wrong references when there are documentation elements; - translate ``__get__()`` and ``__set__()`` to to JS equivalents; - implement ``dict(foo).update(bar)`` and ``dict(foo).copy``; - documentation improvements;

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Twisted 16.6.0 Release Announcement
by Amber "Hawkie" Brown 25 Nov '16

25 Nov '16

On behalf of Twisted Matrix Laboratories, I am honoured to announce the release of Twisted 16.5! The highlights of this release are: - The ability to use "python -m twisted" to call the new `twist` runner, - More reliable tests from a more reliable implementation of some things, like IOCP, - Fixes for async/await & twisted.internet.defer.ensureDeferred, meaning it's getting closer to prime time! - ECDSA support in Conch & ckeygen (which has also been ported to Python 3), - Python 3 support for Words' IRC support and twisted.protocols.sip among some smaller modules, - Some HTTP/2 server optimisations, - and a few bugfixes to boot! For more information, check the NEWS file (link provided below). You can find the downloads at <https://pypi.python.org/pypi/Twisted <https://pypi.python.org/pypi/Twisted>> (or alternatively <http://twistedmatrix.com/trac/wiki/Downloads <http://twistedmatrix.com/trac/wiki/Downloads>>). The NEWS file is also available at <https://github.com/twisted/twisted/blob/twisted-16.6.0/NEWS <https://github.com/twisted/twisted/blob/twisted-16.6.0/NEWS>>. Many thanks to everyone who had a part in this release - the supporters of the Twisted Software Foundation, the developers who contributed code as well as documentation, and all the people building great things with Twisted! Twisted Regards, Amber Brown (HawkOwl)

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Sphinx-1.4.9 has been released
by Komiya Takeshi 23 Nov '16

23 Nov '16

Hi all, I'm delighted to announce the release of Sphinx 1.4.9, now available on the Python package index at <http://pypi.python.org/pypi/Sphinx>. It includes about 11 bug fixes for the 1.4.8 release series. For the full changelog, go to <http://www.sphinx-doc.org/en/stable/changes.html>. Thanks to all collaborators and contributers! What is it? =========== Sphinx is a tool that makes it easy to create intelligent and beautiful documentation for Python projects (or other documents consisting of multiple reStructuredText source files). Website: http://sphinx-doc.org/ IRC: #sphinx-doc on irc.freenode.net Enjoy! -- Takeshi KOMIYA

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ANN: Passlib 1.7.0 released
by Eli Collins 23 Nov '16

23 Nov '16

Hi All - I'm happy to announce Passlib 1.7.0 has been released. This version has been a while in coming, and has a lot of great improvements. * Argon2 & Scrypt hash support * TOTP support * PBKDF2 now has faster builtin backend, and utilizes other backends where available * Lots of API cleanups and internal refactoring * HtpasswdFile reader is now more flexible, and with improved security options. * Refreshed documentation See the release notes <http://passlib.readthedocs.io/en/stable/history/1.7.html> for details! - Eli Collins

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[RELEASE] Python 3.6.0b4 is now available
by Ned Deily 22 Nov '16

22 Nov '16

On behalf of the Python development community and the Python 3.6 release team, I'm pleased to announce the availability of Python 3.6.0b4. 3.6.0b4 is the last planned beta release of Python 3.6, the next major release of Python. Among the new major new features in Python 3.6 are: * PEP 468 - Preserving the order of **kwargs in a function * PEP 487 - Simpler customization of class creation * PEP 495 - Local Time Disambiguation * PEP 498 - Literal String Formatting * PEP 506 - Adding A Secrets Module To The Standard Library * PEP 509 - Add a private version to dict * PEP 515 - Underscores in Numeric Literals * PEP 519 - Adding a file system path protocol * PEP 520 - Preserving Class Attribute Definition Order * PEP 523 - Adding a frame evaluation API to CPython * PEP 524 - Make os.urandom() blocking on Linux (during system startup) * PEP 525 - Asynchronous Generators (provisional) * PEP 526 - Syntax for Variable Annotations (provisional) * PEP 528 - Change Windows console encoding to UTF-8 * PEP 529 - Change Windows filesystem encoding to UTF-8 * PEP 530 - Asynchronous Comprehensions Please see "What’s New In Python 3.6" for more information: https://docs.python.org/3.6/whatsnew/3.6.html You can find Python 3.6.0b4 here: https://www.python.org/downloads/release/python-360b4/ Beta releases are intended to give the wider community the opportunity to test new features and bug fixes and to prepare their projects to support the new feature release. We strongly encourage maintainers of third-party Python projects to test with 3.6 during the beta phase and report issues found to bugs.python.org as soon as possible. While the release is feature complete entering the beta phase, it is possible that features may be modified or, in rare cases, deleted up until the start of the release candidate phase (2016-12-05). Our goal is have no changes after rc1. To achieve that, it will be extremely important to get as much exposure for 3.6 as possible during the beta phase. Please keep in mind that this is a preview release and its use is not recommended for production environments The next pre-release of Python 3.6 will be 3.6.0rc1, the release candidate, currently scheduled for 2016-12-05. The official release of Python 3.6.0 is currently scheduled for 2016-12-16. More information about the release schedule can be found here: https://www.python.org/dev/peps/pep-0494/ -- Ned Deily nad(a)python.org -- []

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PyCA cryptography 1.6 released
by Paul Kehrer 22 Nov '16

22 Nov '16

PyCA cryptography 1.6 has been released to PyPI. cryptography is a package which provides cryptographic recipes and primitives to Python developers. Our goal is for it to be your "cryptographic standard library". We support Python 2.6-2.7, Python 3.3+, and PyPy. Changelog (https://cryptography.io/en/latest/changelog/): * Deprecated support for OpenSSL 1.0.0. Support will be removed in cryptography 1.7. * Replaced the Python-based OpenSSL locking callbacks with a C version to fix a potential deadlock that could occur if a garbage collection cycle occurred while inside the lock. * Added support for BLAKE2b and BLAKE2s when using OpenSSL 1.1.0. * Added signature_algorithm_oid support to Certificate. * Added signature_algorithm_oid support to CertificateSigningRequest. * Added signature_algorithm_oid support to CertificateRevocationList. * Added support for Scrypt when using OpenSSL 1.1.0. * Added a workaround to improve compatibility with Python application bundling tools like PyInstaller and cx_freeze. * Added support for generating a random_serial_number(). * Added support for encoding IPv4Network and IPv6Network in X.509 certificates for use with NameConstraints. * Added public_bytes() to Name. * Added RelativeDistinguishedName * DistributionPoint now accepts RelativeDistinguishedName for relative_name. Deprecated use of Name as relative_name. * Name now accepts an iterable of RelativeDistinguishedName. RDNs can be accessed via the rdns attribute. When constructed with an iterable of NameAttribute, each attribute becomes a single-valued RDN. * Added derive_private_key(). * Added support for signing and verifying RSA, DSA, and ECDSA signatures with Prehashed digests. Due to the volume of changes in this release the switch to bundling OpenSSL 1.1.0 in the macOS and Windows wheels has been pushed back to version 1.8. 1.7 is tentatively planned to be out in the next 2-3 weeks with some large features that didn't make the cut for this release. -Paul Kehrer (reaperhulk)

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