python - Cmd Windows "python"命令有效，但 "python3"无效，尽管我的 python 版本是 3.6

Question

所以我在这里关注了一些帖子，例如 this .

所以我已经用 Anaconda 安装了 python 3.6。然后我进入 PATH 并插入 Python 的路径。

所以现在当我输入 cmd“python”时，我得到了响应

Python 3.6.3 |Anaconda custom (64-bit)| (default, Oct 15 2017, 03:27:45) [MSC v.1900 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>>

但是，如果我输入“python3”，我会遇到常见的问题

'python3' is not recognized as an internal or external command,
operable program or batch file.

这是为什么？

Answer 1

您的问题可能已经得到解答；见this answer to: Python 3 installation on windows running from command line .具体来说:

OSX and Linux have python executable installed by default as a rule and it refers to Python 2 version in most cases at the moment that is why you need a separate python3 name there.

There is no Python on Windows by default. And therefore any version that you've installed is just python (I guess). The recommended way to manage multiple python versions is to use the Python launcher.

TL;DR:python3 在 Windows 上不是有效命令，无论它附带的发行版是什么(在您的情况下是 Anaconda)。