dynamo-json
Swap between DynamoDB JSON and normal JSON
Decision gist · record as of 2026-08-14
No. The package is abandoned (last release 2020-06-30, no updates since 2022) and will not receive maintenance or security updates. Modern DynamoDB clients like boto3 handle this conversion automatically. Install only if you have legacy code that explicitly depends on it or are working with raw DynamoDB JSON in a controlled, non-production environment.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Low install friction with no runtime dependencies.
- Maintenance is abandoned—last release was 2020-06-30 and last commit 2022-12-08—so expect no updates for security, compatibility, or bug fixes.
License · maintenance · safety
permissive license (permissive) — MIT license (permissive) means you can use, modify, and distribute freely with minimal restrictions.
last release 2020-06-30 (2236 days) · last repo commit 2022-12-08 · 15 stars
0 known vulnerabilities (OSV.dev, 2026-08-14) · 138,511 downloads/mo, #11,327 on PyPI
Alternatives
Verify before relying
pip install dynamo_json
import dynamo_json
# Convert normal JSON to DynamoDB format
dynamo_json.marshall({"some": ["json", "document"]})
# {"some": {"L": [{"S": "json"}, {"S": "document"}]}}
# Convert DynamoDB format back to normal JSON
dynamo_json.unmarshall({"some": {"L": [{"S": "json"}, {"S": "document"}]}})
# {"some": ["json", "document"]}- Whether the package handles all DynamoDB type descriptors (binary, sets, nested structures, etc.) or only a subset
- Compatibility with modern Python versions beyond 3.8, given the abandoned status and classifiers stopping at 3.8
What it is and what it does
dynamo-json is a small utility that translates between DynamoDB's native JSON representation (which includes type descriptors like {"S": "value"} for strings and {"L": [...]} for lists) and standard JSON. It provides both a Python library with marshall() and unmarshall() functions and a CLI tool for quick conversions. The package has no runtime dependencies, making it lightweight to install.
The tool is useful when working with DynamoDB's low-level API or when you need to inspect or transform DynamoDB responses into plain JSON. However, the project is abandoned—the last release was 2020-06-30 and the last commit 2022-12-08—so it will not receive updates for Python compatibility, security issues, or bug fixes. Modern DynamoDB clients (like boto3 with its resource layer) often handle this conversion automatically, so you may not need this package unless you're working with raw DynamoDB JSON or legacy code.
Use it for
- Convert plain JSON objects to DynamoDB type-descriptor format for low-level API calls or testing
- Transform DynamoDB API responses back to standard JSON for easier inspection or downstream processing
- Quick command-line conversion of JSON documents to verify DynamoDB format without writing code
- Legacy codebases that predate boto3's resource abstraction and need manual format translation
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
No.
The package is abandoned (last release 2020-06-30, no updates since 2022) and will not receive maintenance or security updates. Modern DynamoDB clients like boto3 handle this conversion automatically. Install only if you have legacy code that explicitly depends on it or are working with raw DynamoDB JSON in a controlled, non-production environment.
Install
dynamo-json on PyPI
Before you install
Low install friction with no runtime dependencies. Maintenance is abandoned—last release was 2020-06-30 and last commit 2022-12-08—so expect no updates for security, compatibility, or bug fixes.
License in practice
MIT license (permissive) means you can use, modify, and distribute freely with minimal restrictions.
Quickstart
pip install dynamo_json
import dynamo_json
# Convert normal JSON to DynamoDB format
dynamo_json.marshall({"some": ["json", "document"]})
# {"some": {"L": [{"S": "json"}, {"S": "document"}]}}
# Convert DynamoDB format back to normal JSON
dynamo_json.unmarshall({"some": {"L": [{"S": "json"}, {"S": "document"}]}})
# {"some": ["json", "document"]}Verify before relying
- Whether the package handles all DynamoDB type descriptors (binary, sets, nested structures, etc.) or only a subset
- Compatibility with modern Python versions beyond 3.8, given the abandoned status and classifiers stopping at 3.8
Package facts
| License | permissive license permissive |
| Python support | Not specified |
| Install friction | Low. Pure-Python wheel |
| Runtime dependencies | None |
| Maintenance | Abandoned 2,236 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 138,511 / month, #11,327 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | None known OSV.dev, checked 2026-08-14 |
| Classifiers | Development Status :: 3 - AlphaIntended Audience :: DevelopersLicense :: OSI Approved :: MIT LicenseProgramming Language :: Python :: 3Programming Language :: Python :: 3.4Programming Language :: Python :: 3.5Programming Language :: Python :: 3.6Programming Language :: Python :: 3.7Programming Language :: Python :: 3.8Topic :: Software Development :: Libraries :: Python Modules |
Evidence: dynamo_json-1.2.0-py2.py3-none-any.whl
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See also dynamodb-json · pynamodb · pynamodb-attributes · types-boto3-dynamodb · pydynamodb · dynamodb-encryption-sdk · mypy-boto3-dynamodb · types-aiobotocore-dynamodb · aws-cdk.aws-dynamodb · cachelib