Make generated client transport dependencies opt-in

CHANGELOG.md

@@ -2,6 +2,15 @@
 
 ## Unreleased
 
+### Breaking Changes
+
+* Generated HTTP clients no longer install aiohttp and urllib3 by default.
+  Install the `sync` extra for the synchronous client's default transport, the
+  `async` extra for the asynchronous client's default transport, or both, such
+  as `uv add "aws_sdk_s3[sync,async]"` or
+  `pip install "aws_sdk_s3[sync,async]"`. Clients configured with a
+  custom transport work without either extra. Imports are unchanged.
+
 ### Features
 
 * Generated AWS clients validate the checksums of response payloads for operations with the `aws.protocols#httpChecksum` trait, such as Amazon S3's `GetObject`. These clients depend on the `checksums` extra of `smithy-aws-core`.

codegen-output/aws-json-1-0/README.md

@@ -3,3 +3,23 @@
 ## Sample Json 1.0 Protocol Service Client
 
 Python client for Sample Json 1.0 Protocol Service
+
+### Installation
+
+Install the `sync` extra for the synchronous client's default HTTP transport, the `async` extra for the asynchronous client's default HTTP transport, or both. In a project managed by uv, add the client with the extras you need:
+
+```sh
+uv add "awsjson10[sync]"
+uv add "awsjson10[async]"
+uv add "awsjson10[sync,async]"
+```
+
+Or install it with pip:
+
+```sh
+pip install "awsjson10[sync]"
+pip install "awsjson10[async]"
+pip install "awsjson10[sync,async]"
+```
+
+Without either extra, the models can be used, and either client works with an explicitly configured custom transport.

codegen-output/aws-json-1-0/pyproject.toml

@@ -26,10 +26,18 @@ classifiers = [
 dependencies = [
     "smithy_aws_core[json]~=0.13.0",
     "smithy_core~=0.10.0",
-    "smithy_http[aiohttp, urllib3]~=0.7.0"
+    "smithy_http~=0.7.0"
 ]
 
 [project.optional-dependencies]
+sync = [
+    "smithy_http[urllib3]~=0.7.0"
+]
+
+async = [
+    "smithy_http[aiohttp]~=0.7.0"
+]
+
 awscrt = [
     "smithy_http[awscrt]~=0.7.0"
 ]

codegen-output/aws-json-1-1/README.md

@@ -3,3 +3,23 @@
 ## Sample Json 1.1 Protocol Service Client
 
 Python client for Sample Json 1.1 Protocol Service
+
+### Installation
+
+Install the `sync` extra for the synchronous client's default HTTP transport, the `async` extra for the asynchronous client's default HTTP transport, or both. In a project managed by uv, add the client with the extras you need:
+
+```sh
+uv add "awsjson11[sync]"
+uv add "awsjson11[async]"
+uv add "awsjson11[sync,async]"
+```
+
+Or install it with pip:
+
+```sh
+pip install "awsjson11[sync]"
+pip install "awsjson11[async]"
+pip install "awsjson11[sync,async]"
+```
+
+Without either extra, the models can be used, and either client works with an explicitly configured custom transport.

codegen-output/aws-json-1-1/pyproject.toml

@@ -26,10 +26,18 @@ classifiers = [
 dependencies = [
     "smithy_aws_core[json]~=0.13.0",
     "smithy_core~=0.10.0",
-    "smithy_http[aiohttp, urllib3]~=0.7.0"
+    "smithy_http~=0.7.0"
 ]
 
 [project.optional-dependencies]
+sync = [
+    "smithy_http[urllib3]~=0.7.0"
+]
+
+async = [
+    "smithy_http[aiohttp]~=0.7.0"
+]
+
 awscrt = [
     "smithy_http[awscrt]~=0.7.0"
 ]

codegen-output/aws-query/README.md

@@ -4,6 +4,26 @@
 
 Python client for Sample Query Protocol Service
 
+### Installation
+
+Install the `sync` extra for the synchronous client's default HTTP transport, the `async` extra for the asynchronous client's default HTTP transport, or both. In a project managed by uv, add the client with the extras you need:
+
+```sh
+uv add "awsquery[sync]"
+uv add "awsquery[async]"
+uv add "awsquery[sync,async]"
+```
+
+Or install it with pip:
+
+```sh
+pip install "awsquery[sync]"
+pip install "awsquery[async]"
+pip install "awsquery[sync,async]"
+```
+
+Without either extra, the models can be used, and either client works with an explicitly configured custom transport.
+
 ### Documentation
 
 A query service that sends query requests and XML responses.

codegen-output/aws-query/pyproject.toml

@@ -26,10 +26,18 @@ classifiers = [
 dependencies = [
     "smithy_aws_core[xml]~=0.13.0",
     "smithy_core~=0.10.0",
-    "smithy_http[aiohttp, urllib3]~=0.7.0"
+    "smithy_http~=0.7.0"
 ]
 
 [project.optional-dependencies]
+sync = [
+    "smithy_http[urllib3]~=0.7.0"
+]
+
+async = [
+    "smithy_http[aiohttp]~=0.7.0"
+]
+
 awscrt = [
     "smithy_http[awscrt]~=0.7.0"
 ]

codegen-output/ec2-query/README.md

@@ -4,6 +4,26 @@
 
 Python client for Sample Ec2 Protocol Service
 
+### Installation
+
+Install the `sync` extra for the synchronous client's default HTTP transport, the `async` extra for the asynchronous client's default HTTP transport, or both. In a project managed by uv, add the client with the extras you need:
+
+```sh
+uv add "ec2query[sync]"
+uv add "ec2query[async]"
+uv add "ec2query[sync,async]"
+```
+
+Or install it with pip:
+
+```sh
+pip install "ec2query[sync]"
+pip install "ec2query[async]"
+pip install "ec2query[sync,async]"
+```
+
+Without either extra, the models can be used, and either client works with an explicitly configured custom transport.
+
 ### Documentation
 
 An EC2 query service that sends query requests and XML responses.

codegen-output/ec2-query/pyproject.toml

@@ -26,10 +26,18 @@ classifiers = [
 dependencies = [
     "smithy_aws_core[xml]~=0.13.0",
     "smithy_core~=0.10.0",
-    "smithy_http[aiohttp, urllib3]~=0.7.0"
+    "smithy_http~=0.7.0"
 ]
 
 [project.optional-dependencies]
+sync = [
+    "smithy_http[urllib3]~=0.7.0"
+]
+
+async = [
+    "smithy_http[aiohttp]~=0.7.0"
+]
+
 awscrt = [
     "smithy_http[awscrt]~=0.7.0"
 ]

codegen-output/my-handwritten-json-model/README.md

@@ -4,6 +4,26 @@
 
 Python client for My Handwritten JSON Model
 
+### Installation
+
+Install the `sync` extra for the synchronous client's default HTTP transport, the `async` extra for the asynchronous client's default HTTP transport, or both. In a project managed by uv, add the client with the extras you need:
+
+```sh
+uv add "my_handwritten_json_model[sync]"
+uv add "my_handwritten_json_model[async]"
+uv add "my_handwritten_json_model[sync,async]"
+```
+
+Or install it with pip:
+
+```sh
+pip install "my_handwritten_json_model[sync]"
+pip install "my_handwritten_json_model[async]"
+pip install "my_handwritten_json_model[sync,async]"
+```
+
+Without either extra, the models can be used, and either client works with an explicitly configured custom transport.
+
 ### Documentation
 
 The rpcv2Json counterpart of

codegen-output/my-handwritten-json-model/pyproject.toml

@@ -26,10 +26,18 @@ classifiers = [
 dependencies = [
     "smithy_aws_core[eventstream]~=0.13.0",
     "smithy_core~=0.10.0",
-    "smithy_http[json, aiohttp, urllib3]~=0.7.0"
+    "smithy_http[json]~=0.7.0"
 ]
 
 [project.optional-dependencies]
+sync = [
+    "smithy_http[urllib3]~=0.7.0"
+]
+
+async = [
+    "smithy_http[aiohttp]~=0.7.0"
+]
+
 awscrt = [
     "smithy_http[awscrt]~=0.7.0"
 ]

codegen-output/my-handwritten-model/README.md

@@ -3,3 +3,23 @@
 ## My Handwritten Model Client
 
 Python client for My Handwritten Model
+
+### Installation
+
+Install the `sync` extra for the synchronous client's default HTTP transport, the `async` extra for the asynchronous client's default HTTP transport, or both. In a project managed by uv, add the client with the extras you need:
+
+```sh
+uv add "my_handwritten_model[sync]"
+uv add "my_handwritten_model[async]"
+uv add "my_handwritten_model[sync,async]"
+```
+
+Or install it with pip:
+
+```sh
+pip install "my_handwritten_model[sync]"
+pip install "my_handwritten_model[async]"
+pip install "my_handwritten_model[sync,async]"
+```
+
+Without either extra, the models can be used, and either client works with an explicitly configured custom transport.

codegen-output/my-handwritten-model/pyproject.toml

@@ -26,10 +26,18 @@ classifiers = [
 dependencies = [
     "smithy_aws_core[eventstream]~=0.13.0",
     "smithy_core~=0.10.0",
-    "smithy_http[cbor, aiohttp, urllib3]~=0.7.0"
+    "smithy_http[cbor]~=0.7.0"
 ]
 
 [project.optional-dependencies]
+sync = [
+    "smithy_http[urllib3]~=0.7.0"
+]
+
+async = [
+    "smithy_http[aiohttp]~=0.7.0"
+]
+
 awscrt = [
     "smithy_http[awscrt]~=0.7.0"
 ]

codegen-output/non-query-compatible-rpcv2-cbor/README.md

@@ -3,3 +3,23 @@
 ## Non Query Compatible RpcV2 Protocol Service Client
 
 Python client for Non Query Compatible RpcV2 Protocol Service
+
+### Installation
+
+Install the `sync` extra for the synchronous client's default HTTP transport, the `async` extra for the asynchronous client's default HTTP transport, or both. In a project managed by uv, add the client with the extras you need:
+
+```sh
+uv add "nonquerycompatiblerpcv2cbor[sync]"
+uv add "nonquerycompatiblerpcv2cbor[async]"
+uv add "nonquerycompatiblerpcv2cbor[sync,async]"
+```
+
+Or install it with pip:
+
+```sh
+pip install "nonquerycompatiblerpcv2cbor[sync]"
+pip install "nonquerycompatiblerpcv2cbor[async]"
+pip install "nonquerycompatiblerpcv2cbor[sync,async]"
+```
+
+Without either extra, the models can be used, and either client works with an explicitly configured custom transport.

codegen-output/non-query-compatible-rpcv2-cbor/pyproject.toml

@@ -26,10 +26,18 @@ classifiers = [
 dependencies = [
     "smithy_aws_core~=0.13.0",
     "smithy_core~=0.10.0",
-    "smithy_http[cbor, aiohttp, urllib3]~=0.7.0"
+    "smithy_http[cbor]~=0.7.0"
 ]
 
 [project.optional-dependencies]
+sync = [
+    "smithy_http[urllib3]~=0.7.0"
+]
+
+async = [
+    "smithy_http[aiohttp]~=0.7.0"
+]
+
 awscrt = [
     "smithy_http[awscrt]~=0.7.0"
 ]

codegen-output/query-compatible-aws-json-1-0/README.md

@@ -3,3 +3,23 @@
 ## Query Compatible Json 1.0 Protocol Service Client
 
 Python client for Query Compatible Json 1.0 Protocol Service
+
+### Installation
+
+Install the `sync` extra for the synchronous client's default HTTP transport, the `async` extra for the asynchronous client's default HTTP transport, or both. In a project managed by uv, add the client with the extras you need:
+
+```sh
+uv add "querycompatibleawsjson10[sync]"
+uv add "querycompatibleawsjson10[async]"
+uv add "querycompatibleawsjson10[sync,async]"
+```
+
+Or install it with pip:
+
+```sh
+pip install "querycompatibleawsjson10[sync]"
+pip install "querycompatibleawsjson10[async]"
+pip install "querycompatibleawsjson10[sync,async]"
+```
+
+Without either extra, the models can be used, and either client works with an explicitly configured custom transport.

codegen-output/query-compatible-aws-json-1-0/pyproject.toml

@@ -26,10 +26,18 @@ classifiers = [
 dependencies = [
     "smithy_aws_core[json]~=0.13.0",
     "smithy_core~=0.10.0",
-    "smithy_http[aiohttp, urllib3]~=0.7.0"
+    "smithy_http~=0.7.0"
 ]
 
 [project.optional-dependencies]
+sync = [
+    "smithy_http[urllib3]~=0.7.0"
+]
+
+async = [
+    "smithy_http[aiohttp]~=0.7.0"
+]
+
 awscrt = [
     "smithy_http[awscrt]~=0.7.0"
 ]