如何在Python中打印到stderr？ - How to print to stderr in Python?

問題：

There are several ways to write to stderr: 有幾種寫stderr的方法：

# Note: this first one does not work in Python 3
print >> sys.stderr, "spam"

sys.stderr.write("spam\n")

os.write(2, b"spam\n")

from __future__ import print_function
print("spam", file=sys.stderr)

That seems to contradict zen of Python #13 ^† , so what's the difference here and are there any advantages or disadvantages to one way or the other? 這彷佛與zen的Python＃13 ^†相矛盾，因此這裏有什麼區別，一種方式或另外一種方式有什麼優勢或缺點？ Which way should be used? 應該使用哪一種方式？

^† _{There should be one — and preferably only one — obvious way to do it.} ^† _{應該有一種-最好只有一種-顯而易見的方法。}

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解決方案：

參考一： https://stackoom.com/question/NOEY/如何在Python中打印到stderr
參考二： https://oldbug.net/q/NOEY/How-to-print-to-stderr-in-Python