[llvm] [python] Bump Python minimum version to 3.8 (PR #78828)

Craig Hesling via llvm-commits llvm-commits at lists.llvm.org
Sun Feb 11 12:58:32 PST 2024


https://github.com/linux4life798 updated https://github.com/llvm/llvm-project/pull/78828

>From f55698465c47a4bc9121d4f91f5975775c8bdb38 Mon Sep 17 00:00:00 2001
From: Craig Hesling <craig at hesling.com>
Date: Fri, 19 Jan 2024 18:22:02 -0800
Subject: [PATCH 1/2] [python] Bump Python minimum version to 3.7

As per the RFC
https://discourse.llvm.org/t/rfc-upgrading-llvms-minimum-required-python-version/67571,
raise the minimum Python version to ensure that the Python syntax doesn't
become overly obsolete, to enable new Python feature usage, and to improve
the maintainability of CI.
---
 llvm/CMakeLists.txt            | 4 ++--
 llvm/docs/GettingStarted.rst   | 5 +++--
 llvm/docs/GettingStartedVS.rst | 2 +-
 llvm/docs/ReleaseNotes.rst     | 5 +++++
 llvm/docs/TestingGuide.rst     | 2 +-
 5 files changed, 12 insertions(+), 6 deletions(-)

diff --git a/llvm/CMakeLists.txt b/llvm/CMakeLists.txt
index 81f2753a4edd85..0c03fbbd7dc277 100644
--- a/llvm/CMakeLists.txt
+++ b/llvm/CMakeLists.txt
@@ -877,8 +877,8 @@ set(LLVM_PROFDATA_FILE "" CACHE FILEPATH
   "Profiling data file to use when compiling in order to improve runtime performance.")
 
 if(LLVM_INCLUDE_TESTS)
-  # Lit test suite requires at least python 3.6
-  set(LLVM_MINIMUM_PYTHON_VERSION 3.6)
+  # All LLVM Python files should be compatible down to this minimum version.
+  set(LLVM_MINIMUM_PYTHON_VERSION 3.7)
 else()
   # FIXME: it is unknown if this is the actual minimum bound
   set(LLVM_MINIMUM_PYTHON_VERSION 3.0)
diff --git a/llvm/docs/GettingStarted.rst b/llvm/docs/GettingStarted.rst
index 687d1f29b5a1fe..86a1ff958d76ae 100644
--- a/llvm/docs/GettingStarted.rst
+++ b/llvm/docs/GettingStarted.rst
@@ -288,7 +288,7 @@ uses the package and provides other details.
 Package                                                     Version      Notes
 =========================================================== ============ ==========================================
 `CMake <http://cmake.org/>`__                               >=3.20.0     Makefile/workspace generator
-`python <http://www.python.org/>`_                          >=3.6        Automated test suite\ :sup:`1`
+`python <http://www.python.org/>`_                          >=3.7        Automated test suite\ :sup:`1`
 `zlib <http://zlib.net>`_                                   >=1.2.3.4    Compression library\ :sup:`2`
 `GNU Make <http://savannah.gnu.org/projects/make>`_         3.79, 3.79.1 Makefile/build processor\ :sup:`3`
 =========================================================== ============ ==========================================
@@ -296,7 +296,8 @@ Package                                                     Version      Notes
 .. note::
 
    #. Only needed if you want to run the automated test suite in the
-      ``llvm/test`` directory.
+      ``llvm/test`` directory, or if you plan to utilize any Python libraries,
+      utilities, or bindings.
    #. Optional, adds compression / uncompression capabilities to selected LLVM
       tools.
    #. Optional, you can use any other build tool supported by CMake.
diff --git a/llvm/docs/GettingStartedVS.rst b/llvm/docs/GettingStartedVS.rst
index a1eb88dccc9e5c..a1ff982ff22fd0 100644
--- a/llvm/docs/GettingStartedVS.rst
+++ b/llvm/docs/GettingStartedVS.rst
@@ -55,7 +55,7 @@ Visual Studio 2019 so separate installation is not required. If you do install
 CMake separately, Visual Studio 2022 will require CMake Version 3.21 or later.
 
 If you would like to run the LLVM tests you will need `Python
-<http://www.python.org/>`_. Version 3.6 and newer are known to work. You can
+<http://www.python.org/>`_. Version 3.7 and newer are known to work. You can
 install Python with Visual Studio 2019, from the Microsoft store or from
 the `Python web site <http://www.python.org/>`_. We recommend the latter since it
 allows you to adjust installation options.
diff --git a/llvm/docs/ReleaseNotes.rst b/llvm/docs/ReleaseNotes.rst
index 05d8eea3add419..c18d6f0e7bc976 100644
--- a/llvm/docs/ReleaseNotes.rst
+++ b/llvm/docs/ReleaseNotes.rst
@@ -47,6 +47,11 @@ Non-comprehensive list of changes in this release
 Update on required toolchains to build LLVM
 -------------------------------------------
 
+* The minimum Python version has been raised from 3.6 to 3.7 across all of LLVM.
+  This enables the use of many new Python features, aligning more closely with
+  modern Python best practices, and improves CI maintainability
+  See `#78828 <https://github.com/llvm/llvm-project/pull/78828>`_ for more info.
+
 Changes to the LLVM IR
 ----------------------
 
diff --git a/llvm/docs/TestingGuide.rst b/llvm/docs/TestingGuide.rst
index e32e4d1e535abb..723bc60ee61469 100644
--- a/llvm/docs/TestingGuide.rst
+++ b/llvm/docs/TestingGuide.rst
@@ -23,7 +23,7 @@ Requirements
 ============
 
 In order to use the LLVM testing infrastructure, you will need all of the
-software required to build LLVM, as well as `Python <http://python.org>`_ 3.6 or
+software required to build LLVM, as well as `Python <http://python.org>`_ 3.7 or
 later.
 
 LLVM Testing Infrastructure Organization

>From fb413e08327b71fb94ce1964d67e00562f09a003 Mon Sep 17 00:00:00 2001
From: Craig Hesling <craig at hesling.com>
Date: Fri, 19 Jan 2024 18:22:41 -0800
Subject: [PATCH 2/2] [python] Bump Python minimum version to 3.8

As per the RFC
https://discourse.llvm.org/t/rfc-upgrading-llvms-minimum-required-python-version/67571,
raise the minimum Python version to ensure that the Python syntax doesn't
become overly obsolete, to enable new Python feature usage, and to improve
the maintainability of CI.
---
 llvm/CMakeLists.txt            | 2 +-
 llvm/docs/GettingStarted.rst   | 2 +-
 llvm/docs/GettingStartedVS.rst | 2 +-
 llvm/docs/ReleaseNotes.rst     | 2 +-
 llvm/docs/TestingGuide.rst     | 2 +-
 5 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/llvm/CMakeLists.txt b/llvm/CMakeLists.txt
index 0c03fbbd7dc277..25ba0c4540e5eb 100644
--- a/llvm/CMakeLists.txt
+++ b/llvm/CMakeLists.txt
@@ -878,7 +878,7 @@ set(LLVM_PROFDATA_FILE "" CACHE FILEPATH
 
 if(LLVM_INCLUDE_TESTS)
   # All LLVM Python files should be compatible down to this minimum version.
-  set(LLVM_MINIMUM_PYTHON_VERSION 3.7)
+  set(LLVM_MINIMUM_PYTHON_VERSION 3.8)
 else()
   # FIXME: it is unknown if this is the actual minimum bound
   set(LLVM_MINIMUM_PYTHON_VERSION 3.0)
diff --git a/llvm/docs/GettingStarted.rst b/llvm/docs/GettingStarted.rst
index 86a1ff958d76ae..a38fd2ae45f4d7 100644
--- a/llvm/docs/GettingStarted.rst
+++ b/llvm/docs/GettingStarted.rst
@@ -288,7 +288,7 @@ uses the package and provides other details.
 Package                                                     Version      Notes
 =========================================================== ============ ==========================================
 `CMake <http://cmake.org/>`__                               >=3.20.0     Makefile/workspace generator
-`python <http://www.python.org/>`_                          >=3.7        Automated test suite\ :sup:`1`
+`python <http://www.python.org/>`_                          >=3.8        Automated test suite\ :sup:`1`
 `zlib <http://zlib.net>`_                                   >=1.2.3.4    Compression library\ :sup:`2`
 `GNU Make <http://savannah.gnu.org/projects/make>`_         3.79, 3.79.1 Makefile/build processor\ :sup:`3`
 =========================================================== ============ ==========================================
diff --git a/llvm/docs/GettingStartedVS.rst b/llvm/docs/GettingStartedVS.rst
index a1ff982ff22fd0..4b15272635fbeb 100644
--- a/llvm/docs/GettingStartedVS.rst
+++ b/llvm/docs/GettingStartedVS.rst
@@ -55,7 +55,7 @@ Visual Studio 2019 so separate installation is not required. If you do install
 CMake separately, Visual Studio 2022 will require CMake Version 3.21 or later.
 
 If you would like to run the LLVM tests you will need `Python
-<http://www.python.org/>`_. Version 3.7 and newer are known to work. You can
+<http://www.python.org/>`_. Version 3.8 and newer are known to work. You can
 install Python with Visual Studio 2019, from the Microsoft store or from
 the `Python web site <http://www.python.org/>`_. We recommend the latter since it
 allows you to adjust installation options.
diff --git a/llvm/docs/ReleaseNotes.rst b/llvm/docs/ReleaseNotes.rst
index c18d6f0e7bc976..e7e794b93762c4 100644
--- a/llvm/docs/ReleaseNotes.rst
+++ b/llvm/docs/ReleaseNotes.rst
@@ -47,7 +47,7 @@ Non-comprehensive list of changes in this release
 Update on required toolchains to build LLVM
 -------------------------------------------
 
-* The minimum Python version has been raised from 3.6 to 3.7 across all of LLVM.
+* The minimum Python version has been raised from 3.6 to 3.8 across all of LLVM.
   This enables the use of many new Python features, aligning more closely with
   modern Python best practices, and improves CI maintainability
   See `#78828 <https://github.com/llvm/llvm-project/pull/78828>`_ for more info.
diff --git a/llvm/docs/TestingGuide.rst b/llvm/docs/TestingGuide.rst
index 723bc60ee61469..3e3a722f141874 100644
--- a/llvm/docs/TestingGuide.rst
+++ b/llvm/docs/TestingGuide.rst
@@ -23,7 +23,7 @@ Requirements
 ============
 
 In order to use the LLVM testing infrastructure, you will need all of the
-software required to build LLVM, as well as `Python <http://python.org>`_ 3.7 or
+software required to build LLVM, as well as `Python <http://python.org>`_ 3.8 or
 later.
 
 LLVM Testing Infrastructure Organization



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