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Location: Hyderabad India
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We are seeking an experienced Backend Developer to join our dynamic and innovative team. The ideal candidate should have a strong background in developing robust, scalable, and high-performance backend systems. As a Python Backend Developer, you will be responsible for designing, implementing, and maintaining backend services, APIs, and databases that …
...API Proposal Class hierarchy No confusion with builtins Immutability Sane behaviour Comparisons Useful notations Pure paths API Definitions Construction Representing Properties Deriving new paths Joining Changing the path's final component Making the path relative Sequence-like access Querying Concrete paths API Constructing File metadata Path resolution Directory walking File opening Filesystem modification Discussion Division operator joinpath() Case-sensitivity Copyright Abstract...
...API The "Python/C API" as described in Python documentation. CPython implements the C-API, but other implementations exist. Rationale PEP 489 introduced a new way to initialize extension modules, which brings several advantages to extensions that implement it: The extension modules behave more like their Python counterparts. The extension modules can easily support loading into pre-existing module objects, which paves the way for extension module support for runpy or for systems that enable ...
...API Design and Implementation Revisions Rationale Introduction Specification contextvars.ContextVar contextvars.Token contextvars.Context asyncio Implementation Summary of the New APIs Python API C API Rejected Ideas Replicating threading.local() interface Replacing Token with ContextVar.unset() Having Token.reset() instead of ContextVar.reset() Making Context objects picklable Making Context a MutableMapping Having initial values for ContextVars Backwards Compatibility Examples Converting...
...API to create the exception objects. Optional DB API Extensions During the lifetime of DB API 2.0, module authors have often extended their implementations beyond what is required by this DB API specification. To enhance compatibility and to provide a clean upgrade path to possible future versions of the specification, this section defines a set of common extensions to the core DB API 2.0 specification. As with all DB API optional features, the database module authors are free to not impleme...
...API and changes to CPython Subclassing Finalizing the API Internal CPython changes Changes to existing classes Using the vectorcall protocol for classes The PyMethodDef protocol and Argument Clinic Third-party extension classes using vectorcall Performance implications of these changes Stable ABI Alternative Suggestions bpo-29259 PEP 576 and PEP 580 Other rejected approaches Acknowledgements References Reference implementation Copyright Abstract This PEP introduces a new C API to optimi...
...API The ordered dict API would be mostly compatible with dict and existing ordered dicts. Note: this PEP refers to the 2.7 and 3.0 dictionary API as described in collections.Mapping abstract base class. The constructor and update() both accept iterables of tuples as well as mappings like a dict does. Unlike a regular dictionary, the insertion order is preserved. >>> d = OrderedDict([('a', 'b'), ('c', 'd')]) >>> d.update({'foo': 'bar'}) >>> d collections.OrderedDict...
...API The zoneinfo database Changes in the datetime-module New class dsttimezone New function zoneinfo(name=None, db_path=None) New parameter is_dst New exceptions New collections The tzdata-update-package Differences from the pytz API Resources Copyright Abstract This PEP proposes the implementation of concrete time zone support in the Python standard library, and also improvements to the time zone API to deal with ambiguous time specifications during DST changes. Withdrawal After length...
...API (February 2022) Steering Council reply to PEP 670 -- Convert macros to functions in the Python C API (February 2022) PEP 670: Convert macros to functions in the Python C API (October 2021) References bpo-45490: [C API] PEP 670: Convert macros to functions in the Python C API (October 2021). What to do with unsafe macros (March 2021). bpo-43502: [C-API] Convert obvious unsafe macros to static inline functions (March 2021). Version History Version 2: Stricter policy on not changing arg...
PEP 3153 -- Asynchronous IO support PEP:3153 Title:Asynchronous IO support Author:Laurens Van Houtven <_ at lvh.cc> Status:Superseded Type:Standards Track Created:29-May-2011 Post-History: Superseded-By:3156 Contents Abstract Rationale Communication abstractions Transports Protocols Why separate protocols and transports? Flow control Consumers Producers Considered API alternatives Generators as producers References Copyright Abstract This PEP describes an abst...
...APIs for interacting with the Windows operating system, often via C Runtime functions. However, these have been long discouraged in favor of the UTF-16 APIs. Within the operating system, all text is represented as UTF-16, and the ANSI APIs perform encoding and decoding using the active code page. See Naming Files, Paths, and Namespaces for more details. This PEP proposes changing the default filesystem encoding on Windows to utf-8, and changing all filesystem functions to use the Unicode APIs fo...
...API. [c-api] Subinterpreters operate in relative isolation from one another, which facilitates novel alternative approaches to concurrency. This proposal introduces the stdlib interpreters module. The module will be provisional. It exposes the basic functionality of subinterpreters already provided by the C-API, along with new (basic) functionality for sharing data between interpreters. A Disclaimer about the GIL To avoid any confusion up front: This PEP is unrelated to any efforts to stop...
...API for a C library will continue to be frowned upon as ctypes lacks compiler guarantees that C code typically relies upon to prevent certain errors from occurring (e.g., API changes). Even though a pure Python implementation is mandated by this PEP, it does not preclude the use of a companion acceleration module. If an acceleration module is provided it is to be named the same as the module it is accelerating with an underscore attached as a prefix, e.g., _warnings for warnings. The common patt...
...API changes A new function PyBuiltinFunction_New(PyMethodDef *ml, PyObject *module) is added to create built-in functions. PyCFunction_NewEx() and PyCFunction_New() are deprecated and will return a PyBuiltinFunction if able, otherwise a builtin_function_or_method. Retaining backwards compatibility in the C API and ABI The proposed changes are fully backwards and forwards compatible at both the API and ABI level. Internal C changes Two new flags will be allowed for the typeobject.tp_flags f...
Version: None
Released: Dec. 7, 2020
This is an early developer preview of Python 3.10 Major new features of the 3.10 series, compared to 3.9 Python 3.10 is still in development. This releasee, 3.10.0a3 is the second of six planned alpha releases. Alpha releases are intended to make it easier to test the current state of …
...APIs to list expected standard library modules Changes to the default sys.excepthook implementation Design Discussion Modifying sys.excepthook Public API to query expected standard library module names Only including top level module names Listing private top level module names as optional standard library modules Deeming packaging related modules to be mandatory Deferred Ideas Platform dependent modules Emitting a warning when __main__ shadows a standard library module Recommendation for ...
...API compatible with OpenSSL 1.1.1. The latest release LibreSSL 3.3.2 is missing features and behaves differently in some cases. Mentionable missing or incompatible features include SHA-3, SHAKE, BLAKE2 SSL_CERT_* environment variables security level APIs session handling APIs key logging API verified cert chain APIs OPENSSL_VERSION macro This PEP proposed to remove any and all LibreSSL related workarounds from Python. In the future Python will not actively prohibit LibreSSL support with config...
...API use a naming scheme which is consistent with the present scheme used by logging. API The logging.config module will have the following addition: A function, called dictConfig(), which takes a single argument - the dictionary holding the configuration. Exceptions will be raised if there are errors while processing the dictionary. It will be possible to customize this API - see the section on API Customization. Incremental configuration is covered in its own section. Dictionary Schema ...
...APIs. spec_from_loader(name, loader, *, origin=None, is_package=None) - build a spec with missing information filled in by using loader APIs. Other API Additions importlib.find_spec(name, path=None, target=None) will work exactly the same as importlib.find_loader() (which it replaces), but return a spec instead of a loader. For finders: importlib.abc.MetaPathFinder.find_spec(name, path, target) and importlib.abc.PathEntryFinder.find_spec(name, target) will return a module spec to use durin...
...API surface for both core and third-party developers to target their TLS implementations to. This allows TLS developers to provide interfaces that can be used by most Python code, and allows network developers to have an interface that they can target that will work with a wide range of TLS implementations. To provide an API that has few or no OpenSSL-specific concepts leak through. The ssl module today has a number of warts caused by leaking OpenSSL concepts through to the API: the new ABCs wou...