Introducing stack graphs (via) GitHub launched “precise code navigation” for Python today—the first language to get support for this feature. Click on any Python symbol in GitHub’s code browsing views and a box will show you exactly where that symbol was defined—all based on static analysis by a custom parser written in Rust as opposed to executing any Python code directly. The underlying computer science uses a technique called stack graphs, based on scope graphs research from Eelco Visser’s research group at TU Delft.
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