fix: migrate from httpx to httpx2

Author: azmeuk

README.md

@@ -3,7 +3,7 @@
 A SCIM client Python library built upon [scim2-models](https://scim2-models.readthedocs.io) ,
 that pythonically build requests and parse responses,
 following the [RFC7643](https://datatracker.ietf.org/doc/html/rfc7643.html) and [RFC7644](https://datatracker.ietf.org/doc/html/rfc7644.html) specifications.
-You can use whatever request engine you prefer to perform network requests, but scim2-client comes with [httpx](https://github.com/encode/httpx) support.
+You can use whatever request engine you prefer to perform network requests, but scim2-client comes with [httpx2](https://github.com/pydantic/httpx2) support.
 
 It aims to be used in SCIM client applications, or in unit tests for SCIM server applications.
 
@@ -21,14 +21,14 @@ It allows users and groups creations, modifications and deletions to be synchron
 - **Server Discovery**: Automatic retrieval of `ServiceProviderConfig`, `ResourceTypes` and `Schemas`
 - **Search & Filtering**: Support for SCIM filters, sorting, pagination and attribute selection
 - **Sync & Async**: Both synchronous and asynchronous clients available
-- **Multiple HTTP Engines**: Built-in support for [httpx](https://github.com/encode/httpx) (sync/async) and [werkzeug](https://werkzeug.palletsprojects.com/) (testing). Adaptable to any network engine.
+- **Multiple HTTP Engines**: Built-in support for [httpx2](https://github.com/pydantic/httpx2) (sync/async) and [werkzeug](https://werkzeug.palletsprojects.com/) (testing). Adaptable to any network engine.
 - **Request & Response Validation**: Automatic payload validation against SCIM schemas
 - **Error Handling**: Structured exceptions for network, request and response errors
 
 ## Installation
 
 ```shell
-pip install scim2-client[httpx]
+pip install scim2-client[httpx2]
 ```
 
 ## Usage
@@ -40,9 +40,9 @@ Here is an example of usage:
 
 ```python
 import datetime
-from httpx import Client
+from httpx2 import Client
 from scim2_client import SCIMResponseErrorObject
-from scim2_client.engines.httpx import SyncSCIMClient
+from scim2_client.engines.httpx2 import SyncSCIMClient
 
 client = Client(base_url="https://auth.example/scim/v2", headers={"Authorization": "Bearer foobar"})
 scim = SyncSCIMClient(client)

doc/changelog.rst

@@ -1,6 +1,24 @@
 Changelog
 =========
 
+[Unreleased]
+------------
+
+Added
+^^^^^
+- The network request engines are built upon `httpx2 <https://github.com/pydantic/httpx2>`_,
+  which is maintained, and live in ``scim2_client.engines.httpx2``.
+  They are shipped in the ``httpx2`` packaging extra.
+  `httpx <https://github.com/encode/httpx>`_ is still used when httpx2 is not installed.
+
+Deprecated
+^^^^^^^^^^
+- The ``httpx`` packaging extra, in favor of the ``httpx2`` extra. Will be removed in 0.9.
+- The ``scim2_client.engines.httpx`` module, in favor of ``scim2_client.engines.httpx2``.
+  Will be removed in 0.9.
+- Passing a :code:`httpx.Client` or a :code:`httpx.AsyncClient` to the request engines,
+  in favor of their httpx2 counterparts. Will be removed in 0.9.
+
 [0.7.5] - 2026-04-02
 --------------------
 

doc/reference.rst

@@ -1,7 +1,7 @@
 Reference
 =========
 
-.. automodule:: scim2_client.engines.httpx
+.. automodule:: scim2_client.engines.httpx2
    :members:
    :member-order: bysource
 

doc/tutorial.rst

@@ -4,11 +4,18 @@ Tutorial
 Initialization
 ==============
 
-scim2-client depends on request engines such as `httpx <https://github.com/encode/httpx>`_ to perform network requests.
-This tutorial demonstrate how to use scim2-client with httpx, and suppose you have installed the `httpx` extra for example with ``pip install scim2-client[httpx]``.
+scim2-client depends on request engines such as `httpx2 <https://github.com/pydantic/httpx2>`_ to perform network requests.
+This tutorial demonstrate how to use scim2-client with httpx2, and suppose you have installed the `httpx2` extra for example with ``pip install scim2-client[httpx2]``.
 
-As a start you will need to instantiate a httpx :code:`Client` (or :code:`AsyncClient`) object that you can parameter as your will, and then pass it to a :class:`~scim2_client.SCIMClient` object.
-In addition to your SCIM server root endpoint, you will probably want to provide some authorization headers through the httpx :code:`Client` :code:`headers` parameter:
+.. note::
+
+   The engines still work with `httpx <https://github.com/encode/httpx>`_, shipped in the deprecated `httpx` extra.
+   It is used when httpx2 is not installed, and both its extra and its support will be removed in 0.9.
+   Applications that cannot migrate all their dependencies at once can call :code:`httpx2.alias_httpx()`
+   at the very top of their entrypoint, so that :code:`import httpx` resolves to httpx2 process-wide.
+
+As a start you will need to instantiate a httpx2 :code:`Client` (or :code:`AsyncClient`) object that you can parameter as your will, and then pass it to a :class:`~scim2_client.SCIMClient` object.
+In addition to your SCIM server root endpoint, you will probably want to provide some authorization headers through the httpx2 :code:`Client` :code:`headers` parameter:
 
 .. tab-set::
    :class: outline
@@ -18,8 +25,8 @@ In addition to your SCIM server root endpoint, you will probably want to provide
 
       .. code-block:: python
 
-          from httpx import Client
-          from scim2_client.engines.httpx import SyncSCIMClient
+          from httpx2 import Client
+          from scim2_client.engines.httpx2 import SyncSCIMClient
 
           client = Client(
               base_url="https://auth.example/scim/v2",
@@ -32,8 +39,8 @@ In addition to your SCIM server root endpoint, you will probably want to provide
 
       .. code-block:: python
 
-          from httpx import AsyncClient
-          from scim2_client.engines.httpx import AsyncSCIMClient
+          from httpx2 import AsyncClient
+          from scim2_client.engines.httpx2 import AsyncSCIMClient
 
           client = AsyncClient(
               base_url="https://auth.example/scim/v2",
@@ -392,8 +399,8 @@ Engines
 scim2-client comes with a light abstraction layers that allows for different requests engines.
 Currently those engines are shipped:
 
-- :class:`~scim2_client.engines.httpx.SyncSCIMClient`: A synchronous engine using `httpx <https://github.com/encode/httpx>`_ to perform the HTTP requests.
-- :class:`~scim2_client.engines.httpx.AsyncSCIMClient`: An asynchronous engine using `httpx <https://github.com/encode/httpx>`_ to perform the HTTP requests. It has the very same API than its synchronous version, except it is asynchronous.
+- :class:`~scim2_client.engines.httpx2.SyncSCIMClient`: A synchronous engine using `httpx2 <https://github.com/pydantic/httpx2>`_ to perform the HTTP requests.
+- :class:`~scim2_client.engines.httpx2.AsyncSCIMClient`: An asynchronous engine using `httpx2 <https://github.com/pydantic/httpx2>`_ to perform the HTTP requests. It has the very same API than its synchronous version, except it is asynchronous.
 - :class:`~scim2_client.engines.werkzeug.TestSCIMClient`: A test engine for development purposes.
   It takes a WSGI app and directly execute the server code instead of performing real HTTP requests.
   This is faster in unit test suites, and helpful to catch the server exceptions.

pyproject.toml

@@ -9,7 +9,7 @@ description = "Pythonically build SCIM requests and parse SCIM responses"
 authors = [{name="Yaal Coop", email="contact@yaal.coop"}]
 license = {file = "LICENSE.md"}
 readme = "README.md"
-keywords = ["scim", "scim2", "provisioning", "rfc7643", "rfc7644", "httpx", "api"]
+keywords = ["scim", "scim2", "provisioning", "rfc7643", "rfc7644", "httpx2", "api"]
 classifiers = [
     "Intended Audience :: Developers",
     "Development Status :: 3 - Alpha",
@@ -31,6 +31,11 @@ dependencies = [
 ]
 
 [project.optional-dependencies]
+httpx2 = [
+    "httpx2>=2.12",
+]
+
+# Deprecated, will be removed in 0.9.
 httpx = [
     "httpx>=0.28.0",
 ]
@@ -50,6 +55,7 @@ module-root = ""
 
 [dependency-groups]
 dev = [
+    "httpx>=0.28.0",
     "mypy>=1.13.0",
     "portpicker>=1.6.0",
     "prek>=0.1.0",
@@ -139,13 +145,14 @@ env_list = [
     "py312",
     "py313",
     "py314",
+    "legacy",
     "minversions",
     "doc",
     "coverage",
 ]
 
 [tool.tox.env_run_base]
-extras = ["httpx", "werkzeug"]
+extras = ["httpx2", "werkzeug"]
 runner = "uv-venv-lock-runner"
 dependency_groups = ["dev"]
 commands = [
@@ -158,6 +165,9 @@ commands = [
     ["prek", "run", "--all-files", "--show-diff-on-failure"],
 ]
 
+[tool.tox.env.legacy]
+extras = ["httpx", "werkzeug"]
+
 [tool.tox.env.minversions]
 runner = "uv-venv-runner"
 uv_resolution = "lowest-direct"