[CodeStyle] use built-in open
instead of io.open
#46751
Merged
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Describe
使用 built-in
open
替换io.open
同样是一个 Python2 历史遗留问题,在 Python2
open
与io.open
不同,而在 Python3open
与io.open
完全相同,也更推荐使用open
而不是io.open