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boto3 with auto-complete and dataclasses not dicts

Project description

  • PyCharm-ready auto-complete and docstrings for boto3 low-level client interface.

  • Project Status: Alpha

  • Custom methods that boto3 does not generate from botocore are simply delegated to the boto3 client and have no documentation available. And the parameter naming schema is like in the original methods.

  • Passing nested objects is ugly.

from import s3

s3_client = s3.Client()

for bucket in s3_client.list_buckets().buckets:
    print(f"= {} =")
    for obj in s3_client.list_objects_v2(
        print(f"  - {obj.key}")

You can also paginate:

for page in s3_client.list_objects_v2(
    for obj in page.contents:
        print(f"  - {obj.key}")


pip install autoboto

Code Generation

When you install autoboto from, the package already contains the generated code for all the services that boto3 supports.

If you want to re-generate the code, you can do so with the included botogen.

python -m botogen --services s3,cloudformation,lambda


  • autoboto - package where the generated code is put just before release. Do not add anything there manually. All files in this directory may be overwritten.

  • botogen - the code responsible for autoboto generation

  • botogen.autoboto_template - contents of this package end up in the generated autoboto package.

    • .gitignore file under botogen/autoboto_template instructs git to ignore all files in the directory. This is so that the generated code in autoboto package is never added to version control. Therefore, during autoboto development, when you are adding new files to the botogen/autoboto_template, you need to add -f flag to force-add them to git.

  • botogen.indentist - generic Python code generator

Directory Structure

build/                                  All build artifacts are put here

    release/                            Release builds happen here

        20180909_135602/                individual release build directory; Added to sys.path
            autoboto/                   generated autoboto package; an augmented copy of botogen/autoboto_complete

    test/                               Test builds happen here

        20180909_135330/                individual test build directory; Added to sys.path
            autoboto_20180909_135330/   generated autoboto package; an augmented copy of botogen/autoboto_complete

    test-packages/                      Target directory for test builds -- where the generated
                                        packages are put after successful completion of a build
                                        and tests passing on the generated code.
  • build_dir – a temporary directory in which all the build artifacts are generated. In the example above, build/test/20180909_135330 and build/release/20180909_135602 are build directories.

  • target_package – name of the generated target package; used in import statements in the generated code. autoboto when generating the release; autoboto_{timestamp} in tests.

  • target_dir – the directory in which to put the target package. By default it’s the current directory, but in tests it is build/test-packages.


Do not use any imports from botogen.autoboto_template in tests because the objects that exist there are not the same that the test code will access.


To run tox, you need to first generate the autoboto package or it will fail.

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