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

问题：

There are several ways to write to stderr: 有几种写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? 这彷佛与zen的Python＃13 ^†相矛盾，因此这里有什么区别，一种方式或另外一种方式有什么优势或缺点？ Which way should be used? 应该使用哪一种方式？

^† _{There should be one — and preferably only one — obvious way to do it.} ^† _{应该有一种-最好只有一种-显而易见的方法。}

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解决方案：

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