[BE] Update Python min version to 3.10 (pytorch#162310) (pytorch#163802)

Pull Request resolved: pytorch#162310
Approved by: https://github.com/atalman, https://github.com/Skylion007, https://github.com/ZainRizvi
ghstack dependencies: pytorch#162862

Co-authored-by: Nikita Shulga <[email protected]>

Author: Camyll

pyproject.toml

@@ -53,7 +53,7 @@ dev = [
 name = "torch"
 description = "Tensors and Dynamic neural networks in Python with strong GPU acceleration"
 readme = "README.md"
-requires-python = ">=3.9"
+requires-python = ">=3.10"
 # TODO: change to `license = "BSD-3-Clause"` and enable PEP 639 after pinning setuptools>=77
 # FIXME: As of 2025.06.20, it is hard to ensure the minimum version of setuptools in our CI environment.
 # TOML-table-based license deprecated in setuptools>=77, and the deprecation warning will be changed
@@ -74,7 +74,6 @@ classifiers = [
     "Topic :: Software Development :: Libraries :: Python Modules",
     "Programming Language :: C++",
     "Programming Language :: Python :: 3 :: Only",
-    "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",

setup.py

@@ -259,7 +259,7 @@
 
 
 # Also update `project.requires-python` in pyproject.toml when changing this
-python_min_version = (3, 9, 0)
+python_min_version = (3, 10, 0)
 python_min_version_str = ".".join(map(str, python_min_version))
 if sys.version_info < python_min_version:
     print(
@@ -1033,7 +1033,7 @@ def build_deps() -> None:
         CWD / "third_party/valgrind-headers/callgrind.h",
         CWD / "third_party/valgrind-headers/valgrind.h",
     ]
-    for sym_file, orig_file in zip(sym_files, orig_files):
+    for sym_file, orig_file in zip(sym_files, orig_files, strict=True):
         same = False
         if sym_file.exists():
             if filecmp.cmp(sym_file, orig_file):