Convert `_sysconfigdata` to a JSON file

Feature or enhancement

Proposal:

Currently, as part of the sysconfig internals, we generate a _sysconfigdata Python module containing the variables for sysconfig.get_config_vars(). This data is consists of all Makefile variables, which can be encoded as JSON data.

The use of a module instead of a text file is historic, and adds unnecessary complexity. Converting _sysconfigdata to a JSON file would simplify the sysconfig implementation. Additionally, it also makes it easier for tools to introspect the Python installation, as this would remove the necessity to execute Python code to read _sysconfigdata.

Has this already been discussed elsewhere?

No response given

Links to previous discussion of this feature:

No response

Linked PRs

• gh-127180
• gh-127302
• gh-128558

先閱讀產生及使用 Python 模組 _sysconfigdata 的 sysconfig 內部實作，然後檢視相關的 PR gh-127180、gh-127302 和 gh-128558。完成的標準是：設定資料以 JSON 表示，sysconfig.get_config_vars() 仍可運作，而且工具可以在不執行 Python 程式碼的情況下檢查安裝內容。