Project Summary
YANG is a data modeling language for NETCONF (RFC4741), developed by the IETF NETMOD WG.
pyang is a YANG validator, transformator and code generator, written in python. It can be used to validate YANG modules for correctness, to transform YANG modules into other formats, and to generate code from the modules.
pyang is compatible with http://www.ietf.org/internet-drafts/draft-ietf-netmod-yang-02.txt.
In a Nutshell, pyang...
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has a well established, mature codebase
maintained by a average size development team
with increasing Y-O-Y commits -
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took an estimated 8 years of effort (COCOMO model)
starting with its first commit in May, 2008
ending with its most recent commit 2 months ago
BSD 4-clause (University of California-Specific)
Permitted
Commercial Use
Modify
Distribute
Place Warranty
Forbidden
Hold Liable
Use Trademarks
Required
Include Copyright
Include License
These details are provided for information only. No information here is legal advice and should not be used as such.
Project Security
Vulnerabilities per Version ( last 10 releases )
There are no reported vulnerabilities
Project Vulnerability Report
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Vulnerability Exposure Index
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30 Day SummaryJun 21 2026 — Jul 21 2026
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12 Month SummaryJul 21 2025 — Jul 21 2026
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