Declare Python 3.14 support

.github/workflows/ci.yml

@@ -122,6 +122,7 @@ jobs:
           - "3.11"
           - "3.12"
           - "3.13"
+          - "3.14"
 
     steps:
       - uses: actions/checkout@v4
@@ -181,6 +182,7 @@ jobs:
           # - "3.11"
           # - "3.12"
           - "3.13"
+          - "3.14"
         group:
           - { number: 1, pytest-filter: "not test_install" }
           - { number: 2, pytest-filter: "test_install" }

docs/html/development/ci.rst

@@ -23,6 +23,7 @@ pip support a variety of Python interpreters:
 - CPython 3.11
 - CPython 3.12
 - CPython 3.13
+- CPython 3.14
 - Latest PyPy3
 
 on different operating systems:
@@ -37,7 +38,7 @@ and on different architectures:
 - x86
 - arm64 (macOS only)
 
-so 49 hypothetical interpreters.
+so 56 hypothetical interpreters.
 
 
 Checks
@@ -100,6 +101,8 @@ Actual testing
 |           |          +-------+---------------+-----------------+
 |           |          | CP3.13|               |                 |
 |           |          +-------+---------------+-----------------+
+|           |          | CP3.14|               |                 |
+|           |          +-------+---------------+-----------------+
 |           |          | PyPy3 |               |                 |
 |  Windows  +----------+-------+---------------+-----------------+
 |           |   x64    | CP3.9 |   GitHub      |   GitHub        |
@@ -112,6 +115,8 @@ Actual testing
 |           |          +-------+---------------+-----------------+
 |           |          | CP3.13|   GitHub      |   GitHub        |
 |           |          +-------+---------------+-----------------+
+|           |          | CP3.14|   GitHub      |   GitHub        |
+|           |          +-------+---------------+-----------------+
 |           |          | PyPy3 |               |                 |
 +-----------+----------+-------+---------------+-----------------+
 |           |   x86    | CP3.9 |               |                 |
@@ -124,6 +129,8 @@ Actual testing
 |           |          +-------+---------------+-----------------+
 |           |          | CP3.13|               |                 |
 |           |          +-------+---------------+-----------------+
+|           |          | CP3.14|               |                 |
+|           |          +-------+---------------+-----------------+
 |           |          | PyPy3 |               |                 |
 |   Linux   +----------+-------+---------------+-----------------+
 |           |   x64    | CP3.9 |   GitHub      |   GitHub        |
@@ -136,6 +143,8 @@ Actual testing
 |           |          +-------+---------------+-----------------+
 |           |          | CP3.13|   GitHub      |   GitHub        |
 |           |          +-------+---------------+-----------------+
+|           |          | CP3.14|   GitHub      |   GitHub        |
+|           |          +-------+---------------+-----------------+
 |           |          | PyPy3 |               |                 |
 +-----------+----------+-------+---------------+-----------------+
 |           |  arm64   | CP3.9 |   GitHub      |   GitHub        |
@@ -148,6 +157,8 @@ Actual testing
 |           |          +-------+---------------+-----------------+
 |           |          | CP3.13|   GitHub      |   GitHub        |
 |           |          +-------+---------------+-----------------+
+|           |          | CP3.14|   GitHub      |   GitHub        |
+|           |          +-------+---------------+-----------------+
 |           |          | PyPy3 |               |                 |
 |   macOS   +----------+-------+---------------+-----------------+
 |           |   x64    | CP3.9 |   GitHub      |   GitHub        |
@@ -160,5 +171,7 @@ Actual testing
 |           |          +-------+---------------+-----------------+
 |           |          | CP3.13|   GitHub      |   GitHub        |
 |           |          +-------+---------------+-----------------+
+|           |          | CP3.14|   GitHub      |   GitHub        |
+|           |          +-------+---------------+-----------------+
 |           |          | PyPy3 |               |                 |
 +-----------+----------+-------+---------------+-----------------+

news/13506.feature.rst

@@ -0,0 +1 @@
+Declare support for Python 3.14

noxfile.py

@@ -67,7 +67,7 @@ def should_update_common_wheels() -> bool:
 # -----------------------------------------------------------------------------
 # Development Commands
 # -----------------------------------------------------------------------------
-@nox.session(python=["3.9", "3.10", "3.11", "3.12", "3.13", "pypy3"])
+@nox.session(python=["3.9", "3.10", "3.11", "3.12", "3.13", "3.14", "pypy3"])
 def test(session: nox.Session) -> None:
     # Get the common wheels.
     if should_update_common_wheels():

pyproject.toml

@@ -23,6 +23,7 @@ classifiers = [
   "Programming Language :: Python :: 3.11",
   "Programming Language :: Python :: 3.12",
   "Programming Language :: Python :: 3.13",
+  "Programming Language :: Python :: 3.14",
   "Programming Language :: Python :: Implementation :: CPython",
   "Programming Language :: Python :: Implementation :: PyPy",
 ]
@@ -299,7 +300,15 @@ follow_imports = "skip"
 #
 
 [tool.pytest.ini_options]
-addopts = "--ignore src/pip/_vendor --ignore tests/tests_cache -r aR --color=yes --disable-socket --allow-hosts=localhost"
+addopts = [
+    "-r=aR",
+    "--color=yes",
+    "--ignore=src/pip/_vendor",
+    "--ignore=tests/tests_cache",
+    "--disable-socket",
+    "--allow-unix-socket",
+    "--allow-hosts=localhost",
+]
 xfail_strict = true
 markers = [
     "network: tests that need network",

tests/functional/test_install.py

@@ -1880,7 +1880,7 @@ def test_install_editable_with_wrong_egg_name(
     result = script.pip(
         "install",
         "--editable",
-        f"file://{pkga_path}#egg=pkgb",
+        path_to_url(str(pkga_path)) + "#egg=pkgb",
         expect_error=(resolver_variant == "resolvelib"),
     )
     assert (

tests/functional/test_proxy.py

@@ -1,4 +1,5 @@
 import ssl
+import sys
 from pathlib import Path
 from typing import Any
 
@@ -92,6 +93,11 @@ def test_proxy_does_not_override_netrc(
         script.assert_installed(simple="3.0")
 
 
+@pytest.mark.xfail(
+    sys.version_info >= (3, 14),
+    reason="Access logs are blank intermittently on 3.14",
+    strict=False,
+)
 @pytest.mark.network
 def test_build_deps_use_proxy_from_cli(
     script: PipTestEnvironment, capfd: pytest.CaptureFixture[str], data: TestData

tests/unit/test_req.py

@@ -51,6 +51,7 @@
     handle_requirement_line,
 )
 from pip._internal.resolution.legacy.resolver import Resolver
+from pip._internal.utils.urls import path_to_url
 
 from tests.lib import TestData, make_test_finder, requirements_file, wheel
 
@@ -224,16 +225,12 @@ def test_unsupported_hashes(self, data: TestData) -> None:
         dir_path = data.packages.joinpath("FSPkg")
         reqset.add_unnamed_requirement(
             get_processed_req_from_line(
-                f"file://{dir_path}",
+                path_to_url(str(dir_path)),
                 lineno=2,
             )
         )
         finder = make_test_finder(find_links=[data.find_links])
 
-        sep = os.path.sep
-        if sep == "\\":
-            sep = "\\\\"  # This needs to be escaped for the regex
-
         with self._basic_resolver(finder, require_hashes=True) as resolver:
             with pytest.raises(
                 HashErrors,
@@ -244,7 +241,7 @@ def test_unsupported_hashes(self, data: TestData) -> None:
                     r"file \(line 1\)\)\n"
                     r"Can't verify hashes for these file:// requirements because "
                     r"they point to directories:\n"
-                    rf"    file://.*{sep}data{sep}packages{sep}FSPkg "
+                    r"    file://.*/data/packages/FSPkg "
                     r"\(from -r file \(line 2\)\)"
                 ),
             ):