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gh-95085: Promote Emscripten and WASI to PEP 11 tier 3 (GH-95086)
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@ -1551,10 +1551,19 @@ Build Changes
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The :program:`configure` options ``--with-tcltk-includes`` and
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``--with-tcltk-libs`` have been removed.
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* CPython now has experimental support for cross compiling to WebAssembly
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platform ``wasm32-emscripten``. The effort is inspired by previous work
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like Pyodide.
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(Contributed by Christian Heimes and Ethan Smith in :issue:`40280`.)
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* CPython now has :pep:`11` tier 3 support for cross compiling to WebAssembly
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platform ``wasm32-unknown-emscripten`` (Python in the browser). The effort
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is inspired by previous work like `Pyodide <https://pyodide.org/>`_.
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Emscripten provides a limited subset of POSIX APIs. Python standard
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libraries features and modules related to networking, processes, threading,
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signals, mmap, and users/groups are not available or don't work.
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(Contributed by Christian Heimes and Ethan Smith in :gh:`84461`,
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promoted in :gh:`95085`)
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* CPython now has :pep:`11` tier 3 support for cross compiling to WebAssembly
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platform ``wasm32-unknown-wasi`` (WebAssembly System Interface). Like on
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Emscripten, only a subset of Python's standard library is available on WASI.
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(Contributed by Christian Heimes in :gh:`90473`, promoted in :gh:`95085`)
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* CPython will now use 30-bit digits by default for the Python :class:`int`
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implementation. Previously, the default was to use 30-bit digits on platforms
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@ -0,0 +1,2 @@
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Platforms ``wasm32-unknown-emscripten`` and ``wasm32-unknown-wasi`` have
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been promoted to :pep:`11` tier 3 platform support.
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@ -167,7 +167,7 @@ ## Misc
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- Heap memory and stack size are limited. Recursion or extensive memory
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consumption can crash Python.
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- Most stdlib modules with a dependency on external libraries are missing,
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e.g. ``ctypes``, ``readline``, ``sqlite3``, ``ssl``, and more.
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e.g. ``ctypes``, ``readline``, ``ssl``, and more.
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- Shared extension modules are not implemented yet. All extension modules
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are statically linked into the main binary. The experimental configure
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option ``--enable-wasm-dynamic-linking`` enables dynamic extensions
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6
configure
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@ -6342,7 +6342,11 @@ case $host/$ac_cv_cc_name in #(
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PY_SUPPORT_TIER=3 ;; #(
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s390x-*-linux-gnu/gcc) :
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PY_SUPPORT_TIER=3 ;; #(
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x86_64-*-freebsd*/clang) :
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wasm32-unknown-emscripten/clang) :
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PY_SUPPORT_TIER=3 ;; #(
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wasm32-unknown-wasi/clang) :
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PY_SUPPORT_TIER=3 ;; #(
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x86_64-*-freebsd*/clang) :
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PY_SUPPORT_TIER=3 ;; #(
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*) :
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PY_SUPPORT_TIER=0
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@ -1141,8 +1141,8 @@ AS_CASE([$host/$ac_cv_cc_name],
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[armv7l-*-linux-gnueabihf/gcc], [PY_SUPPORT_TIER=3], dnl ARMv7 LE with hardware floats, any vendor, glibc, gcc
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[powerpc64le-*-linux-gnu/clang], [PY_SUPPORT_TIER=3], dnl Linux on PPC64 little endian, glibc, clang
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[s390x-*-linux-gnu/gcc], [PY_SUPPORT_TIER=3], dnl Linux on 64bit s390x (big endian), glibc, gcc
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dnl [wasm32-unknown-emscripten/clang], [PY_SUPPORT_TIER=3], dnl WebAssembly Emscripten
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dnl [wasm32-unknown-wasi/clang], [PY_SUPPORT_TIER=3], dnl WebAssembly System Interface
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[wasm32-unknown-emscripten/clang], [PY_SUPPORT_TIER=3], dnl WebAssembly Emscripten
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[wasm32-unknown-wasi/clang], [PY_SUPPORT_TIER=3], dnl WebAssembly System Interface
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[x86_64-*-freebsd*/clang], [PY_SUPPORT_TIER=3], dnl FreeBSD on AMD64
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[PY_SUPPORT_TIER=0]
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)
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