May 2026

May 26 - Pyats v26.5

New Module Versions

Modules	Version
pyats	v26.5
pyats.aereport	v26.5
pyats.aetest	v26.5
pyats.async	v26.5
pyats.cisco	v26.5
pyats.connections	v26.5
pyats.datastructures	v26.5
pyats.easypy	v26.5
pyats.kleenex	v26.5
pyats.log	v26.5
pyats.reporter	v26.5
pyats.results	v26.5
pyats.robot	v26.5
pyats.tcl	v26.5
pyats.topology	v26.5
pyats.utils	v26.5

Changelogs

Fix

• aetest-pkg

  • Modified Discovery

    • Consolidated shared section validation, instantiation, loop expansion, and retry expansion logic across script, testcase, and common discovery

    • Preserved existing discovery ordering, invalid-context checks, and duplicate CommonSetup, CommonCleanup, Setup, and Cleanup errors

    • Added docstrings and type hints to discovery helper functions and discovery classes

    • Preserved the initial retry result in retry data so discoverer-driven retries and direct retry_generator callers convert successful failed or errored retries to PASSX consistently

• cisco

  • Modified TestbedExportSubcommand

    • Changed LaaSv2 testbed export to call the refactored dyntopo.laasv2.exporter API instead of the removed dyntopo.laasv2.testbed module.

    • Stopped printing None after YAML when exporting to stdout.

• installer

  • Modified Python version selection

    • Updated the supported managed Python range to 3.10 through 3.14 for current pyATS releases.

    • Allowed pyATS 26.3 and older installs to continue using the legacy Python 3.9 through 3.13 range.

    • Allowed major.minor –py-version requests to match installed patch-level Python binaries.

    • Validated custom –py-home and Ubuntu system python3 binaries against the supported range.

• topology-pkg

  • schema

    • Added media_type optional field to management under device schema.

New

• topology

  • Added server schema support for interfaces and management routes

    • interfaces - per-interface dict keyed by name with optional ipv4/ipv6 addresses.

    • management.routes - list of {subnet, interface} dicts for IPv4/IPv6 route entries.

• aetest-pkg

  • Added section_results support for retry decorator

    • When section_results=["passed"] is specified, tests are retried on pass to gauge stability by repeating N times

  • Modified RetryDecorator

    • Added support for per-testcase retry count overrides via the testcases kwarg

    • When a testcase UID is matched in testcases, its retries value takes priority over the decorator-level default

    • Falls back to decorator-level retries when no matching UID is found, the key is absent, or the value is falsy