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- Python v2.7.2 : 14.2. hmac — Keyed-Hashing for Message Authentication
- Python 3.5.2 : 15.2. hmac — Keyed-Hashing for Message Authentication
- Python 3.6.3 : 15.2. hmac — Keyed-Hashing for Message Authentication
- Python 2.7.10 : 14.2. hmac — Keyed-Hashing for Message Authentication
- Python 3.4.4 : 15.2. hmac — Keyed-Hashing for Message Authentication
- Python 2.6 : hmac — Keyed-Hashing for Message Authentication
- Python 3.2 : 14.2. hmac — Keyed-Hashing for Message Authentication
- Python 3.6.4 : 15.2. hmac — Keyed-Hashing for Message Authentication
- Python 2.7.13 : 14.2. hmac — Keyed-Hashing for Message Authentication
- IronPython : 14.2. hmac — Keyed-Hashing for Message Authentication
- Python 3.7 : 15.2. hmac — Keyed-Hashing for Message Authentication
- Python 3.3 : 15.2. hmac — Keyed-Hashing for Message Authentication
- Python 3.5 : 15.2. hmac — Keyed-Hashing for Message Authentication
- Python 2.7 : 14.2. hmac — Keyed-Hashing for Message Authentication
- Python 3.2.1 : 14.2. hmac — Keyed-Hashing for Message Authentication
- Python 3.5.1 : 15.2. hmac — Keyed-Hashing for Message Authentication
- Python 3.6.1 : 15.2. hmac — Keyed-Hashing for Message Authentication
- Golang : src/pkg/crypto/hmac/hmac.go - The Go Programming Language
- Python 3.6.4 : 15.2. hmac — Keyed-Hashing for Message Authentication
- Python 3.7 : 15.2. hmac — Keyed-Hashing for Message Authentication
- Python 3.4 : 15.2. hmac — Keyed-Hashing for Message Authentication
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- Python v2.7.1 : 14.2. hmac — Keyed-Hashing for Message Authentication
- Python 3.7.3 : hmac — Keyed-Hashing for Message Authentication
- Python 3.6.8 : 15.2. hmac — Keyed-Hashing for Message Authentication
- Product Advertising API: 2009-11-01 : HMAC-SHA Signatures for REST Requests
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