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...globals={}, locals={}, fromlist=[], level=0) Reimplementation of the builtin __import__() function. The import of a module will proceed using the state stored in the ImportEngine instance rather than the global import state. For full documentation of __import__ functionality, see [2] . __import__() from ImportEngine and its subclasses can be used to customise the behaviour of the import statement by replacing __builtin__.__import__ with ImportEngine().__import__. import_module(name, package=Non...
...globals, builtins, and attributes of imported modules, the compiler will generate code that uses the array offsets for fast access. [describe the key parts of the design: dlict, compiler support, stupid name trick workarounds, optimization of other module's globals] The implementation will preserve existing semantics for module namespaces, including the ability to modify module namespaces at runtime in ways that affect the visibility of builtin names. DLict design The namespaces are implemente...
...globals and reason about them. Tools/c-analyzer/cpython/globals-to-fix.tsv - the list of remaining globals Tools/c-analyzer/c-analyzer.py * analyze - identify all the globals * check - fail if there are any unsupported globals that aren't ignored Tools/c-analyzer/table-file.py - summarize the known globals Also, the check for unsupported globals is incorporated into CI so that no new globals are accidentally added. Global Objects Global objects that are safe to be shared (without a GIL) betw...
From 28 Oct. through 30 Oct., 2021
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PyData Global 2021
From 06 Dec. through 08 Dec., 2023
PyData Global 2023
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<a href="http://piter-united.ru/event/itgm12/">IT Global Meetup #12</a>
...globals dictionary or the builtins dictionary has been modified. The cache also requires that the dictionary version is globally unique. It is possible to define a function in a namespace and call it in a different namespace, using exec() with the globals parameter for example. In this case, the globals dictionary was replaced and the cache must also be invalidated. Specialized functions using guards PEP 510 proposes an API to support specialized functions with guards. It allows to implement s...
From 08 April through 09 April, 2021
Python for ML and AI Global Summit'21
31 Oct. from 5pm UTC to 7pm UTC, 2022
Location: online
Global AI Developer Days
...globals() allows the program to gain access to all the namespaces in which names are resolved. An analogous function will not be provided for nested scopes. Under this proposal, it will not be possible to gain dictionary-style access to all visible scopes. Warnings and Errors The compiler will issue warnings in Python 2.1 to help identify programs that may not compile or run correctly under future versions of Python. Under Python 2.2 or Python 2.1 if the nested_scopes future statement is used...
PEP 613 -- Explicit Type Aliases PEP:613 Title:Explicit Type Aliases Author:Shannon Zhu <szhu at fb.com> Sponsor:Guido van Rossum <guido at python.org> Discussions-To:https://mail.python.org/archives/list/typing-sig@python.org/thread/MWRJOBEEEMFVXE7CAKO7B4P46IPM4AN3/ Status:Accepted Type:Standards Track Created:21-Jan-2020 Post-History:21-Jan-2020 Contents Abstract Motivation Forward References: Error Messaging: Scope Restrictions: Specification Backwards Compat...
...globals such as math.sin. According to a post to python-dev by Marc-Andre Lemburg [1], LOAD_GLOBAL opcodes account for over 7% of all instructions executed by the Python virtual machine. This can be a very expensive instruction, at least relative to a LOAD_FAST instruction, which is a simple array index and requires no extra function calls by the virtual machine. I believe many LOAD_GLOBAL instructions and LOAD_GLOBAL/LOAD_ATTR pairs could be converted to LOAD_FAST instructions. Code that uses...
...globals, where <i> is a small index with meaning only within one code object like the const index in LOAD_CONST. The code object has a new tuple, co_globals, giving the names of the globals referenced by the code indexed by <i>. No new analysis is required to be able to do this. When a function object is created from a code object and a celldict, the function object creates an array of cell pointers by asking the celldict for cells corresponding to the names in the code object's co...
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From 22 March through 26 March, 2021
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Python Web Conference 2021