flyteidl2
IDL for Flyte
Decision gist · record as of 2026-08-14
Yes, if you are developing for or integrating with Flyte. This is a foundational library that Flyte itself depends on; you will almost certainly need it as a transitive dependency. Install it explicitly only if you are building Flyte plugins or custom integrations that directly consume its protobuf definitions. The package is actively maintained, has no known vulnerabilities, and carries a permissive Apache 2.0 license.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Requires Python 3.10 or later; protobuf runtime dependencies must be installed alongside.
- Active maintenance with a recent release.
- Low install friction from a pure-Python wheel with four runtime dependencies (protobuf, googleapis-common-protos, protoc-gen-openapiv2, protovalidate), all standard protocol-buffer tooling.
License · maintenance · safety
permissive license (permissive) — Licensed under Apache License 2.0 (permissive), allowing use in most commercial and open-source projects without significant restriction.
last release 2026-08-14 (0 days)
0 known vulnerabilities (OSV.dev, 2026-08-14) · 180,337 downloads/mo, #10,146 on PyPI
Alternatives
Verify before relying
pip install flyteidl2
from flyteidl2 import core
# Use protobuf message definitions from flyteidl2.core or other submodules- Whether this package is intended for end-user workflow development or primarily for Flyte framework internals.
- What specific protobuf message types and services are exposed and their typical usage patterns.
- Whether documentation or examples exist beyond the package metadata.
What it is and what it does
flyteidl2 is a Python library that bundles the protobuf message definitions and serialization code for Flyte's interface definition language. It serves as the contract layer between Flyte workflow components, allowing them to communicate using well-defined, versioned message schemas. The package is built from protobuf definitions and depends on standard protobuf tooling (protobuf, googleapis-common-protos, protoc-gen-openapiv2, protovalidate) to provide runtime message handling.
This is a foundational library for anyone building or integrating with Flyte workflows. It is not a standalone application but rather a dependency that Flyte clients, plugins, and the Flyte control plane use to serialize and deserialize workflow metadata, task definitions, and execution state. If you are working directly with Flyte, you will likely install this as a transitive dependency rather than explicitly.
Use it for
- Building Flyte task plugins or custom workflow components that need to serialize task metadata and execution state.
- Integrating external systems with Flyte by consuming or producing Flyte workflow definitions and execution events.
- Developing Flyte control-plane extensions that operate on workflow and task protobuf messages.
- Debugging Flyte workflows by inspecting serialized protobuf messages in logs or event streams.
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes, if you are developing for or integrating with Flyte.
This is a foundational library that Flyte itself depends on; you will almost certainly need it as a transitive dependency. Install it explicitly only if you are building Flyte plugins or custom integrations that directly consume its protobuf definitions. The package is actively maintained, has no known vulnerabilities, and carries a permissive Apache 2.0 license.
Install
flyteidl2 on PyPI
Before you install
Active maintenance with a recent release. Low install friction from a pure-Python wheel with four runtime dependencies (protobuf, googleapis-common-protos, protoc-gen-openapiv2, protovalidate), all standard protocol-buffer tooling.
Requires Python 3.10 or later; protobuf runtime dependencies must be installed alongside.
License in practice
Licensed under Apache License 2.0 (permissive), allowing use in most commercial and open-source projects without significant restriction.
Quickstart
pip install flyteidl2
from flyteidl2 import core
# Use protobuf message definitions from flyteidl2.core or other submodulesVerify before relying
- Whether this package is intended for end-user workflow development or primarily for Flyte framework internals.
- What specific protobuf message types and services are exposed and their typical usage patterns.
- Whether documentation or examples exist beyond the package metadata.
Package facts
| License | permissive license permissive |
| Python support | Supports the current Python release >=3.10 |
| Install friction | Low. Pure-Python wheel |
| Runtime dependencies | 4 packagesgoogleapis-common-protosprotoc-gen-openapiv2protobufprotovalidate |
| Maintenance | Actively maintained 0 days since the last release |
| First released | |
| Downloads | 180,337 / month, #10,146 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | None known OSV.dev, checked 2026-08-14 |
| Classifiers | Intended Audience :: DevelopersIntended Audience :: Science/ResearchLicense :: OSI Approved :: Apache Software LicenseProgramming Language :: Python :: 3.10Programming Language :: Python :: 3.11Programming Language :: Python :: 3.12Programming Language :: Python :: 3.13Topic :: Scientific/EngineeringTopic :: Scientific/Engineering :: Artificial IntelligenceTopic :: Software DevelopmentTopic :: Software Development :: LibrariesTopic :: Software Development :: Libraries :: Python Modules |
Evidence: flyteidl2-2.0.41-py3-none-any.whl
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See also flyteidl · dbt-protos · flyte · flytekit · proto-google-cloud-datastore-v1 · opentelemetry-proto · substrait-protobuf · proto-plus · fast-flights · stone