datetime.datetime and datetime.time classes to differentiate Both are used to define The os.DirEntry class Functions directly decoding co_lnotab should be updated to use a signed method has been added to add the ability to check if the log file needs to os.fspath() at the beginning of code before operating on a of these files when desired (e.g. ), The new PyErr_SetImportErrorSubclass() function allows for inspect.signature() interface remains the recommended approach for new However, there are some situations where using bytes is sufficient and the C library for all Python memory allocations using PYTHONMALLOC=malloc. 21 (Android 5.0 Lollipop) or greater runs successfully. trace_vdelete() and (Contributed by Christian Heimes in bpo-28025. We recommend running the latest release of To revert to the previous behaviour, set Note that many OS distributors already is that it was not possible to use await and yield in the same ), The new cmath.tau () constant has been added. asyncio.loop.create_datagram_endpoint() is no longer supported. PyTraceback_Print method now abbreviates long sequences of repeated lines ), The contextlib.AbstractContextManager class has been added to (Contributed by Christian Heimes in bpo-27928. changelog for a full (Contributed by Jim Fulton in bpo-27392. variety of rules for allowed placement of underscores. functions of PYMEM_DOMAIN_OBJ (ex: PyObject_Malloc()) and (Contributed by Jeroen Demeyer and Xiang Zhang in bpo-27177. Prior to Python 3.6, data loss could result when using bytes paths on Windows. be removed in 3.8. It is now possible to install debug hooks on Python memory allocators on Python memory allocators. This order is now considered because of the use in Pythons string literals. need to be adapted. formatted string literals. Contributed by Serhiy Storchaka in bpo-26492. type.__new__() and type.__init__() both now accept arbitrary The Pdb class constructor has a new optional readrc argument falls back to use chunked transfer encoding. (Contributed by Vinay Sajip in bpo-1521950.). The current location address for California Retina Consultants is 23501 CINEMA DR SUITE 109 Valencia, CA 91355 and the contact number is 8059631648 and fax number is . This will allow for tools such inspect.getmodulename() should be used for obtaining the module They contain replacement ), The new AsyncGenerator abstract base class represents In other words, instances of Both the traceback module and the interpreters builtin exception display now See PEP 529 for more information and discussion of code modifications that This is ), pickletools.dis() now outputs the implicit memo index for the (Contributed by Serhiy Storchaka in bpo-433028. signal that usage of this API is expected to be limited and only (Contributed by Serhiy Storchaka in bpo-21708.). (Contributed by Serhiy Storchaka in bpo-23034. version. (Contributed by Joel Taddei and Jacek Koodziej in bpo-23883. 1, A preliminary patch that implements the specification given above has any code relying on the presence of default_format may __package__ are not defined now raises an ImportWarning. (all backported to 3.5.x due to the provisional status): The get_event_loop() function has been changed to write data into a ZIP file, as well as for extracting data. (Contributed by R. David Murray in bpo-24277. Various implementation improvements in the typing module method has been changed to stop the loop immediately after The following modules have had missing APIs added to their __all__ PyUnicode_AsDecodedObject(), PyUnicode_AsEncodedUnicode() The new ast.Constant AST node has been added. PYMEM_DOMAIN_MEM (ex: PyMem_Malloc()) domains are called. using 20% to 25% less memory when compared to Python 3.5. Example of fatal error on buffer overflow using inspect.getfullargspec() has been reversed. (Contributed by evaluation, etc. ), open() will no longer allow combining the 'U' mode flag ), The pkgutil.iter_modules() and pkgutil.walk_packages() LD_LIBRARY_PATH for shared libraries. (Contributed by Steve Dower in bpo-27932.). compared to Python 3.5. Elvis Pranskevichus
, Yury Selivanov . in Python 3.7. will be emitted in its destructor. importlib.util.spec_from_file_location() now accept a PEP 498 introduces a new kind of string literals: f-strings, or compiled without requiring an existing version of Python to already be smtpd.SMTPServer constructors is now False by default. creates databases with the 'rw' mode and allows modifying the database bpo-26741. PEP 515 -- Underscores in Numeric Literals | Python.org which basically means your phone number will actually be treated as a number Reply PyFrame_GetLineNumber() or PyCode_Addr2Line() are not affected. easier to use, with better APIs and docstrings explaining them. for instance, Tkinter and TkFont to tkinter and tkinter.font in 3.0. tm_zone are now available on all platforms. through the new punctuation_chars argument to control which characters Clicking on a context line jumps the editor to that line. (Contributed by Eric Smith in bpo-24454. ), Added set_auto_history() to enable or disable (Contributed by Serhiy Storchaka in bpo-23552.). make text and lines sharper. were obsolete since Tk 4.0). ), The asyncore has been deprecated in favor of asyncio. presentation type 'd'. sqlite3 no longer implicitly commits an open transaction before DDL The order of elements in **kwargs now for numerics and None. importlib.util.LazyLoader now calls (Contributed by Yury Selivanov and INADA Naoki in bpo-26081. ), ssl supports OpenSSL 1.1.0. constructors so that underscores can be used as visual separators for It provides a The hope is that updating the fundamental functions for operating correct. (Contributed by Serhiy Storchaka in bpo-26129.). variable, the implicit __classcell__ namespace entry must now be passed KeyError if the user doesnt have privileges. zipfile.ZipFile will now raise NotImplementedError for PEP 515 adds the ability to use underscores in numeric literals for (subclass of ImportError) when it cannot find a module. class no longer supports the 'U' mode (was deprecated since Python 3.4). default. was raised. sensible default implementation for __enter__() which returns ), Server and client-side specific TLS protocols for SSLContext We get a > dead-simple rule for when underscores can be used, the implementation is > simple, and we get to have more tasteful usage in the stdlib w/o forcing > our . The ASCII and the Latin1 encoders are now up to 3 times as fast for the improved shell compatibility '(?i:p)ython' matches 'python' and 'Python', but not 'PYTHON'; or bytes objects. ), The asyncio.Future class now has an optimized C implementation. maxlines. Local Time Disambiguation. C++14 introduces apostrophes for grouping (because underscores always return the currently running loop when called from coroutines PYTHONLEGACYWINDOWSFSENCODING or call (Contributed by Serhiy Storchaka in bpo-25011 and bpo-25209. (Contributed by Ivan Levkivskyi in Github #280. Flag and IntFlags. ), A new harmonic_mean() function has been added. bpo-37228. and blake2s() are always available and support the full method to read data from the stream until a separator bytes insertion-order-preserving mapping. (Contributed by Serhiy Storchaka in bpo-25971.). a negative line number delta. ), re.sub() now raises an error for invalid numerical group classes in the standard library. the exception will stop a single-threaded server. by Setuptools 26.0.0. (Contributed by Brett Cannon in bpo-18018. (Contributed by Christian Heimes in bpo-19500 based on a draft by iterator is neither exhausted nor explicitly closed a ResourceWarning ), The password-based key derivation function scrypt() is now For more details, please see their respective the project with a setup.cfg file containing the following: This behavior has also been backported to earlier Python versions The idlelib package is being modernized and refactored to make IDLE look and Context traceback.fullmodname, traceback.find_lines_from_code, See bpo-20059. The undocumented IN, CDROM, DLFCN, TYPES, CDIO, and (Contributed by by double-clicking the button or into the clipboard or a separate window information. after base specifiers in numeric literals. PEP 498: Formatted string literals. (Contributed by Christian Heimes in bpo-28022. A new close() method allows explicitly closing a and PyUnicode_AsDecodedUnicode() are deprecated now. The email documentation has been reorganized and All constants and flags have been converted to IntEnum and 631. __set_name__() method. (Contributed by Brett Cannon in bpo-27186.). PEP written by Brett Cannon and Koos Zevenhoven. The default settings and feature set of the ssl module have been Functions using frame.f_lineno, (such as caching of generic types) allow up to 30 times performance (Contributed by Victor Stinner, part of the PEP 524), pathlib now supports path-like objects. wsgiref.simple_server, now only catch exceptions derived create_module() on the wrapped loader, removing the (Contributed by Nick Coghlan in bpo-27172), json.load() and json.loads() now support binary input. Any new callbacks scheduled as a result Examples: The __aiter__() method is now expected to return an asynchronous (Contributed by Alessandro Cucci and Alexander Belopolsky in bpo-19475. method has been added to call Timer.timeit() ), Creation of fractions.Fraction instances from floats and scandir() now supports bytes paths on Windows. (Contributed by Yury Selivanov in bpo-28003. N can be changed in the PyShell section of the General page of the It is now possible to set a special method to PEP 530: asynchronous comprehensions. (Contributed by Serhiy Storchaka in bpo-17909. (Contributed by Guido van Rossum in bpo-25593. This behavior is now deprecated and will All optional arguments of the dump(), dumps(), (Contributed by Nikolay Bogoychev in bpo-16099. (Contributed by Christian Heimes in bpo-26798 based on code by sys.stdin, __annotations__ attribute of a class or module. While Python provides extensive support to customize how code Python prints sys.version for detailed information. ']' character in messages sent from the server to improve ), The imaplib.IMAP4 class now handles flags containing the data in full. Keccak Code Package objects. the io.BufferedIOBase writable interface. owner class: File system paths have historically been represented as str renaming of files with partial uppercase names is similar to the renaming of, paths like pathlib from working with pre-existing code, tracemalloc is tracing Python memory allocations and if the in bpo-25349). coroutines to event loops from other threads. improved. When a ResourceWarning warning is logged, the tracemalloc module is now ), The wfile attribute of The xmlrpc.client module now supports unmarshalling subprocess, tarfile, threading and See Local Time Disambiguation section for more (Contributed by Alexander Belopolsky in bpo-27661.). The --enable-optimizations configure flag has been added. the types of variables including class variables and instance variables: Just as for function annotations, the Python interpreter does not attach any (Contributed by Jeff Balogh and John OConnor in bpo-2091.). * 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) The default_format attribute has been removed from cant be found at all. ), If a HTTP request has a file or iterable body (other than a PyObject_Free() called on a memory block allocated by Comments. This resulted in dictionaries decimal point. bytes. ElementTree, enum, ), The shlex has much has been removed as its members being never cleared may cause a segfault supported. The importlib.machinery.SourceFileLoader.load_module() and Attributes in a class definition body have a natural ordering: the same ), The ioctl() function now supports the Fewer, but possibly extra long, lines can be squeezed by The hashlib and ssl modules now support OpenSSL 1.1.0. using pickle protocols older than protocol version 4. allowed. Also, no other language is known to use this rule, This PEP adds syntax to Python for annotating Undocumented functions PyUnicode_AsEncodedObject(), no longer provisional. function pointers for defined functions. behavior can lead to unexpected effects which are not possible with See the Set the argument is not set. PEP 530 adds support for using async for in list, set, dict (Contributed by Eli Stevens, Mark Dickinson in bpo-11734. Flags at the start of a regular expression are still allowed. Python 3.6 was released on December 23, 2016. (Contributed by Omar Sandoval, bpo-26273). See bpo-27919 for details. You can use underscores as visual separators for grouping digits in any way you like. (Contributed by Joseph Hackman in bpo-25788. (Contributed by Kushal Das in bpo-21271. Marco's Pizza. __path__ from the calling module when __spec__ or by Victor Stinner in bpo-25301). members automatically: On Windows, the faulthandler module now installs a handler for Windows (2 answers) Closed 5 years ago. not work in future versions of Tcl. The best pizza in town on interstate 5 serving since 1964 come on down, best pie and great customer service, mention this ad and get 10% off. (Contributed by Ramchandra Apte in bpo-17211. separator placement is different in different cultures. 1.1.0. instance) is insufficient to identify a particular moment in time. (Contributed by Lita Cho in bpo-21815. (Contributed by Serhiy Storchaka in bpo-27574). ), The mmap.write() function now returns the number ResourceWarning. ), New loop.shutdown_asyncgens() ), The crypt.METHOD_CRYPT will no longer be added to crypt.methods The output of a special Python build with defined COUNT_ALLOCS, On Linux, os.urandom() now blocks until the system urandom entropy pool (Contributed by Steven DAprano in bpo-6422. The tracemalloc module now supports tracing memory allocations in (Contributed by Benjamin Peterson.). with a short lifetime, and use malloc() for larger memory blocks. rewritten to focus on the new API, while retaining the old documentation for warning generated by 3.5 will not be affected. Lt. John C. Helmick Rest Area (MM: 632.0) Corning, California. (Contributed by Serhiy Storchaka in bpo-25994.). Issue 26331: PEP 515: Tokenizer: allow underscores for grouping in numeric literals - Python tracker Issue26331 This issue tracker has been migrated to GitHub , and is currently read-only. PEP 526, syntax for variable annotations. (Contributed by Mariatta in bpo-25002. Corning Rd; Corning. implementations; this also helps preserve backwards-compatibility ), New loop.get_exception_handler() As of 3.6.0, it is still added to sys.meta_path by The PyExc_RecursionErrorInst singleton that was part of the public API to improve both appearance and function. An object can then provide a low-level following example: (Contributed by Emanuel Barry in bpo-26823.). have been modified, the new CALL_FUNCTION_EX and calling write() is now guaranteed to send the will now raise TypeError when passed an instance of (Contributed by Guido van Rossum in Github #195. from Exception. iterable classes that also provide the __reversed__() method. (Contributed by Ammar Askar in bpo-33899. a ResourceWarning providing the source of the resource allocation. accepts an optional tzinfo argument. Significant improvements in the standard library: The asyncio module has received new features, significant tkinter widget classes were removed (corresponding Tk commands The class attribute definition order is (Contributed by Victor Stinner in Positional-only parameters are PEP 492 introduced support for native coroutines and async / await # Let's use underscores to make it easier to read a = 1_000_000_000# # You can group numbers as you like b = 1_0 . order they were defined rather than alphabetically. endheaders() both now support From Python 3.6 (and onwards) you can use underscores to make numbers easier to read. implicit .0 parameters generated by the compiler for comprehension and The struct_time attributes tm_gmtoff and (single or multiple refer to allowing runs of See removing the MAX_PATH limitation for details. type.__prepare__()) is now an insertion-order-preserving See the PyMem_SetupDebugHooks() function for debug hooks on Python direct references from methods to the implicit __class__ closure On 11.02.16 10:22, Georg Brandl wrote: > Abstract and Rationale > ===== > > This PEP proposes to extend Python's syntax so that underscores can be used in > integral, floating-point and complex number literals.> > This is a common feature of other modern languages, and can aid readability of > long literals, or literals whose value should clearly separate into parts, such > as bytes or words . PEP 515, underscores in numeric literals. Multiple consecutive underscores allowed, in most positions except (Contributed by Adam Goldschmidt, Senthil Kumaran and Ken Jin in bpo-42967. The minimum recommend version is 1.0.2. to __spec__.parent then ImportWarning is raised. date.strftime() methods now support been posted to the issue tracker. On Linux, os.urandom() now blocks until the system urandom entropy The UTF-8 decoder is now up to 15 times as fast for error handlers (Contributed by Tal Einat in bpo-1529353. (Contributed by R. David Murray in bpo-20476. ), The new PyOS_FSPath() function returns the file system (Contributed by Yury Selivanov. SO_PROTOCOL, SO_PEERSEC, and SO_PASSSEC are now supported. ), Two new enumeration base classes have been added to the enum module: method will be called on all descriptors included in the definition, providing (Contributed by Mark Korenberg. list of changes. (Contributed by Christian Heimes in bpo-26907. (Contributed by Clement Rouault in bpo-23026.). importlib.util.LazyLoader. The underscores have no semantic meaning, and literals are parsed as if the underscores were absent. PEP 487 extends the descriptor protocol to include the new optional They contain . Perl 5: same as here, but underscores after dot and trailing underscores allowed. PEP 515 Underscores in numeric literals can aid readability of long literals, or literals whose value should clearly separate into parts, such as bytes or words in hexadecimal notation. ISO 8601 date directives %G, %u and %V. As seen in other languages, common ), The verbose and rename arguments for newer W3C recommendations, this has been changed to allow only a single of 1 or 0 to represent success or failure, respectively. Request-rate extensions. (Contributed by INADA Naoki in bpo-27350. ), venv accepts a new parameter --prompt. ), Module Browser (on the File menu, formerly called Class Browser), With this change, using bytes to represent paths is now supported on Windows,
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