正则表达式在Python里的地位，说它是文本处理的"瑞士军刀"一点都不夸张。不管你是爬虫工程师、数据分析师，还是写自动化脚本的后端开发，日常总会碰到需要从字符串里提取、匹配、替换内容的场景。而re模块，就是Python官方提供的这套正则表达式工具集，其中match、search、findall、sub这几个方法 ...
CVE-2026-89111 is a critical SSRF vulnerability affecting the SAP Cloud SDK for Python. The vulnerability arises from improper validation of the tenant_subdomain parameter during OAuth2 token requests ...
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