In data engineering and business automation scenarios, it is common to retrieve a list of worksheets before reading an Excel ...
Python 3.15 is expected to speed up some programs and simplifies handling immutable data. UTF-8 as standard requires testing.
In benchmarks comparing Python 3.15 and Python 3.14, Python 3.15 was found to be approximately 1.45 times faster overall.
I copied a Python dictionary, but the original still changed. Here's how shallow copies, shared references, and deep copies ...
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