如何在Windows上找到Python的安装位置？

I want to find out my Python installation path on Windows. For example:

我想在Windows上找到我的Python安装路径。例如：

C:\Python25

How can I find where Python is installed?

如何找到Python的安装位置？

9 个解决方案

#1

>>> import os
>>> import sys
>>> os.path.dirname(sys.executable)
'C:\\Python25'

#2

If you need to know the installed path under Windows without starting the python interpreter, have a look in the Windows registry.

如果您需要在不启动python解释器的情况下知道Windows下的已安装路径，请查看Windows注册表。

Each installed Python version will have a registry key in either:

每个安装的Python版本都有一个注册表项：

• HKLM\SOFTWARE\Python\PythonCore\versionnumber\InstallPath
• HKLM \ SOFTWARE \ Python的\ PythonCore \版本号\安装路径
• HKCU\SOFTWARE\Python\PythonCore\versionnumber\InstallPath
• HKCU \ SOFTWARE \ Python的\ PythonCore \版本号\安装路径

In 64-bit Windows, it will be under the Wow6432Node key:

在64位Windows中，它将位于Wow6432Node键下：

• HKLM\SOFTWARE\Wow6432Node\Python\PythonCore\versionnumber\InstallPath
• HKLM \ SOFTWARE \ Wow6432Node \ Python的\ PythonCore \版本号\安装路径

#3

It would be either of

它可能是

• C:\Python36
• C：\ Python36
• C:\Users\(Your logged in User)\AppData\Local\Programs\Python\Python36
• C：\ Users \（您登录的用户）\ AppData \ Local \ Programs \ Python \ Python36

#4

On my windows installation, I get these results:

在我的Windows安装上，我得到了这些结果：

>>> import sys
>>> sys.executable
'C:\\Python26\\python.exe'
>>> sys.platform
'win32'
>>>

(You can also look in sys.path for reasonable locations.)

（您还可以在sys.path中查找合理的位置。）

#5

If you have python in your enviroment variable so you can also use type command in cmd as

如果你的环境变量中有python，那么你也可以在cmd中使用type命令

>>> where python

command line image

命令行图像

#6

In the sys package, you can find a lot of useful information about your installation:

在sys包中，您可以找到许多有关安装的有用信息：

import sys
print sys.executable
print sys.exec_prefix

I'm not sure what this will give on your Windows system, but on my Mac executable points to the Python binary and exec_prefix to the installation root.

我不确定这会给你的Windows系统带来什么，但是我的Mac可执行文件指向Python二进制文件，exec_prefix指向安装根目录。

You could also try this for inspecting your sys module:

您也可以尝试这个来检查您的sys模块：

import sys
for k,v in sys.__dict__.items():
    if not callable(v):
        print "%20s: %s" % (k,repr(v))

#7

If anyone needs to do this in C# I'm using the following code:

如果有人需要在C＃中执行此操作，我使用以下代码：

static string GetPythonExecutablePath(int major = 3)
{
    var software = "SOFTWARE";
    var key = Registry.CurrentUser.OpenSubKey(software);
    if (key == null)
        key = Registry.LocalMachine.OpenSubKey(software);
    if (key == null)
        return null;

    var pythonCoreKey = key.OpenSubKey(@"Python\PythonCore");
    if (pythonCoreKey == null)
        pythonCoreKey = key.OpenSubKey(@"Wow6432Node\Python\PythonCore");
    if (pythonCoreKey == null)
        return null;

    var pythonVersionRegex = new Regex("^" + major + @"\.(\d+)-(\d+)$");
    var targetVersion = pythonCoreKey.GetSubKeyNames().
                                        Select(n => pythonVersionRegex.Match(n)).
                                        Where(m => m.Success).
                                        OrderByDescending(m => int.Parse(m.Groups[1].Value)).
                                        ThenByDescending(m => int.Parse(m.Groups[2].Value)).
                                        Select(m => m.Groups[0].Value).First();

    var installPathKey = pythonCoreKey.OpenSubKey(targetVersion + @"\InstallPath");
    if (installPathKey == null)
        return null;

    return (string)installPathKey.GetValue("ExecutablePath");
}

#8

This worked for me: C:\Users\Your_user_name\AppData\Local\Programs\Python

这对我有用：C：\ Users \ Your_user_name \ AppData \ Local \ Programs \ Python

My currently installed python version is 3.7.0

我目前安装的python版本是3.7.0

Hope this helps!

希望这可以帮助！

#9

if you still stuck or you get this

如果你仍然坚持或你得到这个

C:\\\Users\\\name of your\\\AppData\\\Local\\\Programs\\\Python\\\Python36

simply do this replace 2 \ with one

只需这样就可以用一个替换2 \

C:\Users\akshay\AppData\Local\Programs\Python\Python36