python-docs-id/library/contextvars.po at 3.14 · python/python-docs-id

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# SOME DESCRIPTIVE TITLE.
# Copyright (C) 2001 Python Software Foundation
# This file is distributed under the same license as the Python package.
# FIRST AUTHOR <EMAIL@ADDRESS>, YEAR.
# Translators:
# python-doc bot, 2025
"Project-Id-Version: Python 3.14\n"
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"POT-Creation-Date: 2026-04-17 14:50+0000\n"
"PO-Revision-Date: 2025-09-16 00:01+0000\n"
"Last-Translator: python-doc bot, 2025\n"
"Language-Team: Indonesian (https://app.transifex.com/python-doc/teams/5390/"
"MIME-Version: 1.0\n"
"Content-Type: text/plain; charset=UTF-8\n"
"Content-Transfer-Encoding: 8bit\n"
"Language: id\n"
"Plural-Forms: nplurals=1; plural=0;\n"
msgid ":mod:`!contextvars` --- Context Variables"
"This module provides APIs to manage, store, and access context-local state.  "
"The :class:`~contextvars.ContextVar` class is used to declare and work with "
"*Context Variables*.  The :func:`~contextvars.copy_context` function and "
"the :class:`~contextvars.Context` class should be used to manage the current "
"context in asynchronous frameworks."
"Context managers that have state should use Context Variables instead of :"
"func:`threading.local` to prevent their state from bleeding to other code "
"unexpectedly, when used in concurrent code."
msgid "See also :pep:`567` for additional details."
msgid "Context Variables"
msgid "This class is used to declare a new Context Variable, e.g.::"
msgid "var: ContextVar[int] = ContextVar('var', default=42)"
"The required *name* parameter is used for introspection and debug purposes."
"The optional keyword-only *default* parameter is returned by :meth:"
"`ContextVar.get` when no value for the variable is found in the current "
"**Important:** Context Variables should be created at the top module level "
"and never in closures.  :class:`Context` objects hold strong references to "
"context variables which prevents context variables from being properly "
"garbage collected."
msgid "The name of the variable.  This is a read-only property."
msgid "Return a value for the context variable for the current context."
"If there is no value for the variable in the current context, the method "
"return the value of the *default* argument of the method, if provided; or"
"return the default value for the context variable, if it was created with "
msgid "raise a :exc:`LookupError`."
"Call to set a new value for the context variable in the current context."
"The required *value* argument is the new value for the context variable."
"Returns a :class:`~contextvars.Token` object that can be used to restore the "
"variable to its previous value via the :meth:`ContextVar.reset` method."
"For convenience, the token object can be used as a context manager to avoid "
"calling :meth:`ContextVar.reset` manually::"
"var = ContextVar('var', default='default value')\n"
"with var.set('new value'):\n"
"    assert var.get() == 'new value'\n"
"assert var.get() == 'default value'"
msgid "It is a shorthand for::"
"var = ContextVar('var', default='default value')\n"
"token = var.set('new value')\n"
"    assert var.get() == 'new value'\n"
"finally:\n"
"    var.reset(token)\n"
"assert var.get() == 'default value'"
msgid "Added support for using tokens as context managers."
"Reset the context variable to the value it had before the :meth:`ContextVar."
"set` that created the *token* was used."
msgid "For example::"
msgstr "Sebagai contoh::"
"var = ContextVar('var')\n"
"token = var.set('new value')\n"
"# code that uses 'var'; var.get() returns 'new value'.\n"
"var.reset(token)\n"
"# After the reset call the var has no value again, so\n"
"# var.get() would raise a LookupError."
msgid "The same *token* cannot be used twice."
"*Token* objects are returned by the :meth:`ContextVar.set` method. They can "
"be passed to the :meth:`ContextVar.reset` method to revert the value of the "
"variable to what it was before the corresponding *set*. A single token "
"cannot reset a context variable more than once."
"Tokens support the :ref:`context manager protocol <context-managers>` to "
"automatically reset context variables. See :meth:`ContextVar.set`."
msgid "Added support for usage as a context manager."
"A read-only property.  Points to the :class:`ContextVar` object that created "
"the token."
"A read-only property.  Set to the value the variable had before the :meth:"
"`ContextVar.set` method call that created the token. It points to :attr:"
"`Token.MISSING` if the variable was not set before the call."
msgid "A marker object used by :attr:`Token.old_value`."
msgid "Manual Context Management"
msgid "Returns a copy of the current :class:`~contextvars.Context` object."
"The following snippet gets a copy of the current context and prints all "
"variables and their values that are set in it::"
"ctx: Context = copy_context()\n"
"print(list(ctx.items()))"
"The function has an *O*\\ (1) complexity, i.e. works equally fast for "
"contexts with a few context variables and for contexts that have a lot of "
msgid "A mapping of :class:`ContextVars <ContextVar>` to their values."
"``Context()`` creates an empty context with no values in it. To get a copy "
"of the current context use the :func:`~contextvars.copy_context` function."
"Each thread has its own effective stack of :class:`!Context` objects.  The :"
"term:`current context` is the :class:`!Context` object at the top of the "
"current thread's stack.  All :class:`!Context` objects in the stacks are "
"considered to be *entered*."
"*Entering* a context, which can be done by calling its :meth:`~Context.run` "
"method, makes the context the current context by pushing it onto the top of "
"the current thread's context stack."
"*Exiting* from the current context, which can be done by returning from the "
"callback passed to the :meth:`~Context.run` method, restores the current "
"context to what it was before the context was entered by popping the context "
"off the top of the context stack."
"Since each thread has its own context stack, :class:`ContextVar` objects "
"behave in a similar fashion to :func:`threading.local` when values are "
"assigned in different threads."
"Attempting to enter an already entered context, including contexts entered "
"in other threads, raises a :exc:`RuntimeError`."
msgid "After exiting a context, it can later be re-entered (from any thread)."
"Any changes to :class:`ContextVar` values via the :meth:`ContextVar.set` "
"method are recorded in the current context.  The :meth:`ContextVar.get` "
"method returns the value associated with the current context.  Exiting a "
"context effectively reverts any changes made to context variables while the "
"context was entered (if needed, the values can be restored by re-entering "
"the context)."
msgid "Context implements the :class:`collections.abc.Mapping` interface."
"Enters the Context, executes ``callable(*args, **kwargs)``, then exits the "
"Context.  Returns *callable*'s return value, or propagates an exception if "
"one occurred."
msgid "Example:"
msgstr "Contoh:"
"import contextvars\n"
"var = contextvars.ContextVar('var')\n"
"var.set('spam')\n"
"print(var.get())  # 'spam'\n"
"ctx = contextvars.copy_context()\n"
"def main():\n"
"    # 'var' was set to 'spam' before\n"
"    # calling 'copy_context()' and 'ctx.run(main)', so:\n"
"    print(var.get())  # 'spam'\n"
"    print(ctx[var])  # 'spam'\n"
"    var.set('ham')\n"
"    # Now, after setting 'var' to 'ham':\n"
"    print(var.get())  # 'ham'\n"
"    print(ctx[var])  # 'ham'\n"
"# Any changes that the 'main' function makes to 'var'\n"
"# will be contained in 'ctx'.\n"
"ctx.run(main)\n"
"# The 'main()' function was run in the 'ctx' context,\n"
"# so changes to 'var' are contained in it:\n"
"print(ctx[var])  # 'ham'\n"
"# However, outside of 'ctx', 'var' is still set to 'spam':\n"
"print(var.get())  # 'spam'"
msgid "Return a shallow copy of the context object."
"Return ``True`` if the *context* has a value for *var* set; return ``False`` "
"otherwise."
"Return the value of the *var* :class:`ContextVar` variable. If the variable "
"is not set in the context object, a :exc:`KeyError` is raised."
"Return the value for *var* if *var* has the value in the context object.  "
"Return *default* otherwise.  If *default* is not given, return ``None``."
msgid "Return an iterator over the variables stored in the context object."
msgid "Return the number of variables set in the context object."
msgid "Return a list of all variables in the context object."
msgid "Return a list of all variables' values in the context object."
"Return a list of 2-tuples containing all variables and their values in the "
"context object."
msgid "asyncio support"
"Context variables are natively supported in :mod:`asyncio` and are ready to "
"be used without any extra configuration.  For example, here is a simple echo "
"server, that uses a context variable to make the address of a remote client "
"available in the Task that handles that client::"
"import asyncio\n"
"import contextvars\n"
"client_addr_var = contextvars.ContextVar('client_addr')\n"
"def render_goodbye():\n"
"    # The address of the currently handled client can be accessed\n"
"    # without passing it explicitly to this function.\n"
"    client_addr = client_addr_var.get()\n"
"    return f'Good bye, client @ {client_addr}\\r\\n'.encode()\n"
"async def handle_request(reader, writer):\n"
"    addr = writer.transport.get_extra_info('socket').getpeername()\n"
"    client_addr_var.set(addr)\n"
"    # In any code that we call is now possible to get\n"
"    # client's address by calling 'client_addr_var.get()'.\n"
"    while True:\n"
"        line = await reader.readline()\n"
"        print(line)\n"
"        if not line.strip():\n"
"            break\n"
"    writer.write(b'HTTP/1.1 200 OK\\r\\n')  # status line\n"
"    writer.write(b'\\r\\n')  # headers\n"
"    writer.write(render_goodbye())  # body\n"
"    writer.close()\n"
"async def main():\n"
"    srv = await asyncio.start_server(\n"
"        handle_request, '127.0.0.1', 8081)\n"
"    async with srv:\n"
"        await srv.serve_forever()\n"
"asyncio.run(main())\n"
"# To test it you can use telnet or curl:\n"
"#     telnet 127.0.0.1 8081\n"
"#     curl 127.0.0.1:8081"
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