First commit, moved from private repo (version 0.2.0).

.gitignore

+*~
+~*
+*.swp
+*.swo
+*.pyc
+.DS_Store
+build/
+dist/
+*.egg-info/

.pre-commit-config.yaml

+-   repo: git://github.com/pre-commit/pre-commit-hooks
+    sha: cf550fcab3f12015f8676b8278b30e1a5bc10e70
+    hooks:
+    -   id: check-added-large-files
+    -   id: check-json
+    -   id: check-xml
+    -   id: check-yaml
+    -   id: check-merge-conflict
+    -   id: flake8

eb-prune/__init__.py

+#!/usr/bin/env python
+'''Prune older versions of an application in Elastic Beanstalk.'''
+from __future__ import (absolute_import, division,
+                        print_function, unicode_literals)
+from botocore import session
+
+
+if __name__ == '__main__':
+    print('Pruning Elastic Beanstalk versions.')
+    session = session.get_session()
+    beanstalk_client = session.create_client('elasticbeanstalk')
+    response = beanstalk_client.describe_application_versions()
+    if response['ResponseMetadata']['HTTPStatusCode'] != 200:
+        raise RuntimeError('Failed to describe application versions.')
+    versions = response['ApplicationVersions']
+    response = beanstalk_client.describe_environments()
+    if response['ResponseMetadata']['HTTPStatusCode'] != 200:
+        raise RuntimeError('Failed to describe environments.')
+    active_versions = [env['VersionLabel'] for env in response['Environments']]
+    previous_versions = filter(
+            lambda x: (not x['VersionLabel'] in active_versions) and
+            x['Status'] == 'UNPROCESSED', versions)
+    old_versions = sorted(previous_versions,
+                          key=lambda x: x.get('DateCreated'))[:-400]
+    for version in old_versions:
+        response = beanstalk_client.delete_application_version(
+                ApplicationName=version['ApplicationName'],
+                VersionLabel=version['VersionLabel'],
+                DeleteSourceBundle=True)
+        if response['ResponseMetadata']['HTTPStatusCode'] != 200:
+            raise RuntimeError(
+                    'Failed to delete version {0}.'.format(
+                        version['VersionLabel']))
+        print('Deleted version {0} of {1}.'.format(version['VersionLabel'],
+              version['ApplicationName']))
+    print('Deleted {0} versions.'.format(len(old_versions)))

setup.py

+#!/usr/bin/env python
+from setuptools import setup, find_packages
+
+setup(
+    name='eb-prune',
+    version='0.2.0',
+    description='Pruning of Elastic Beanstalk versions.',
+    long_description=open('README.rst', 'r').read(),
+    url='https://www.shore.co.il/cgit/eb-prune',
+    author='Nimrod Adar',
+    author_email='nimrod@shore.co.il',
+    license='MIT',
+    classifiers=[
+        'Development status :: 4 - Beta',
+        'Intended Audience :: Developers',
+        'Programming Language :: Python :: 3',
+        'Programming Language :: Python :: 2.7',
+        'Programming Language :: Python :: 2.6',
+        'Intended Audience :: System Administrators',
+        'Topic :: Utilities',
+    ],
+    keywords='beanstalk AWS',
+    packages=find_packages(),
+
+)