Как найти python interpreter - Исправление недочетов и поиск решений вместе с Examum.ru

Добрый день, есть Linux Mint, поставил PyCharm, написал программу. Запускаю из PyCharm — работает.

Запускаю через командную строку python3 test.py — выдает ошибку, не может найти библиотеки.
Как я понимаю есть несколько интерпретаторовокружений.

Как бы мне выяснить с какими параметрами я запускаю в PyCharm и также запустить в командной строке?

Вопрос задан

более трёх лет назад
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Пригласить эксперта

попробуйте команду which он укажет где находится исполняемый файл.
Пример:
which python3
Ответ: будет примерно
/usr/bin/python3

в Window 10 путь к интерпретатору python по-умолчанию можно узнать через команду where python

#держувкурсе

Если создавали проект через PyCharm — то по умолчанию используется venv в папке с проектом.
Чтобы активировать venv из терминала — выполните команду source venv/bin/activate, находясь при этом в папке с проектом

В PyCharm есть встроенный терминал, вызывается по сочетанию клавиш Alt + F12. В нем venv уже активирован.

В каталоге доустановить библиотеки «в ручную», набрав в консоли: pip install название_библиотеки

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

C:Python25

How can I find where Python is installed?

Stevoisiak

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asked Mar 15, 2009 at 9:09

Fang-Pen LinFang-Pen Lin

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In your Python interpreter, type the following commands:

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

Also, you can club all these and use a single line command. Open cmd and enter following command

python -c "import os, sys; print(os.path.dirname(sys.executable))"

answered Mar 15, 2009 at 13:17

If you have Python in your environment variable then you can use the following command in cmd or powershell:

 where python

or for Unix enviroment

 which python

command line image :

answered Apr 17, 2017 at 16:04

Aekansh KansalAekansh Kansal

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It would be either of

C:Python36
C:Users(Your logged in User)AppDataLocalProgramsPythonPython36

answered Aug 18, 2017 at 9:52

Amol ManthalkarAmol Manthalkar

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

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

HKLMSOFTWAREPythonPythonCoreversionnumberInstallPath
HKCUSOFTWAREPythonPythonCoreversionnumberInstallPath

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

HKLMSOFTWAREWow6432NodePythonPythonCoreversionnumberInstallPath

yincrash

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answered Mar 15, 2009 at 21:08

codeapecodeape

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Simple way is

open CMD
type where python in cmd

answered Jan 30, 2020 at 14:13

BigData-GuruBigData-Guru

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If you have the py command installed, which you likely do, then just use the --list-paths/-0p argument to the command:

py --list-paths

Example output:

Installed Pythons found by py Launcher for Windows
-3.8-32 C:UserscscottAppDataLocalProgramsPythonPython38-32python.exe *
-2.7-64 C:Python27python.exe

The * indicates the currently active version for scripts executed using the py command.

answered Dec 9, 2019 at 20:48

carlin.scottcarlin.scott

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On my windows installation, I get these results:

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

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

answered Mar 15, 2009 at 10:18

gimelgimel

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Its generally

‘C:Usersuser-nameAppDataLocalProgramsPythonPython-version’

or
try using (in cmd )

where python

answered Apr 12, 2020 at 18:45

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

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.

You could also try this for inspecting your sys module:

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

answered Mar 15, 2009 at 9:41

Guðmundur HGuðmundur H

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If You want the Path After successful installation then first open you CMD and type
python or python -i

It Will Open interactive shell for You and Then type

import sys

sys.executable

Hit enter and you will get path where your python is installed …

answered Oct 18, 2018 at 7:30

To know where Python is installed you can execute where python in your cmd.exe.

anothernode

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answered Jul 27, 2018 at 6:21

You can search for the «environmental variable for you account». If you have added the Python in the path, it’ll show as «path» in your environmental variable account.

but almost always you will find it in
«C:Users%User_name%AppDataLocalProgramsPythonPython_version»

the ‘AppData‘ folder may be hidden, make it visible from the view section of toolbar.

answered Sep 14, 2018 at 9:19

Amit GuptaAmit Gupta

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Make use of the Python Launcher for Windows (available as of 3.3). It is compatible with all available versions of python.

First, check if the launcher is available:

py

starts the latest installed version of Python

To see all Python versions available on your system and their path:

py -0p

py --list-paths

For a specific Python version path—especially useful with multiple python installations:

py -3.7 -c "import os, sys; print(os.path.dirname(sys.executable))"

python 2

py -2 -c "import os, sys; print(os.path.dirname(sys.executable))"

py installed location is C:Windowspy.exe if installed for all users, otherwise can be found at C:UsersusernameAppDataLocalProgramsPythonLauncher.
It does not require the environment PATH variable to be set if installed for all users.

answered Apr 25, 2022 at 2:23

oyeyipooyeyipo

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You can find it in the Windows GUI, but you need to select “show hidden” in the menu. Directory where python is installed on my Win10 computer:

C:UsersusernameAppDataLocalProgramsPythonPython310

Very handy if you use python pip to install packages.

Suraj Rao

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answered Dec 31, 2021 at 14:35

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

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(@"PythonPythonCore");
    if (pythonCoreKey == null)
        pythonCoreKey = key.OpenSubKey(@"Wow6432NodePythonPythonCore");
    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");
}

answered Apr 5, 2017 at 11:10

PeterPeter

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This worked for me: C:UsersYour_user_nameAppDataLocalProgramsPython

My currently installed python version is 3.7.0

Hope this helps!

David

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answered Jul 16, 2018 at 6:55

Go to C:UsersUSERAppDataLocalProgramsPythonPython36
if it is not there then
open console by windows+^R
Then type cmd and hit enter
type python if installed in your local file it will show you its version from there type the following
import os
import sys
os.path.dirname(sys.executable)

answered Mar 1, 2019 at 11:34

You could have many versions of Python installed on your machine. So if you’re in Windows at a command prompt, entering something like this…

py --version

…should tell you what version you’re using at the moment. (Maybe replace py with python or python3 if py doesn’t work). Anyway you’d see something like

Python 3.10.2

If you then create a virtual environment using something like this…

py -m venv venv

…that environment will also use that Python version. To verify, activate the environment…

venvscriptsactivate.bat

You’ll see the name of the command prompt. Now if execute:

where python

…it will show you which Python executable that virtual environment uses. It will be a copy of Python.exe what’s actually in the Scripts subfolder of the virtual environment folder. Of course to see which version that is, again use py --version.

answered Jan 26, 2022 at 15:55

if you still stuck or you get this

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

simply do this replace 2 with one

C:UsersakshayAppDataLocalProgramsPythonPython36

Kos

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answered Jun 2, 2018 at 16:48

I installed 2 and 3 and had the same problem finding 3. Fortunately, typing path at the windows path let me find where I had installed it. The path was an option when I installed Python which I just forgot. If you didn’t select setting the path when you installed Python 3 that probably won’t work — unless you manually updated the path when you installed it.
In my case it was at c:Program FilesPython37python.exe

answered Feb 3, 2019 at 16:39

If you use anaconda navigator on windows, you can go too enviornments and scroll over the enviornments, the root enviorment will indicate where it is installed. It can help if you want to use this enviorment when you need to connect this to other applications, where you want to integrate some python code.

answered Jun 6, 2019 at 10:01

PV8PV8

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Option 1 : Check System Environment Variables > Path

Option 2 : C:UsersAsusAppDataLocalProgramsPython (By default Path)

answered Oct 1, 2022 at 10:09

On my Windows 11, I have two Python installed: 3.11.2 and 3.8. The below commends give only one of them.

Which python

which py

To find out the location of both the below Powershell commands come in handy:

$User = New-Object System.Security.Principal.NTAccount($env:UserName)

$sid = $User.Translate([System.Security.Principal.SecurityIdentifier]).value

New-PSDrive HKU Registry HKEY_USERS

Get-ChildItem "HKU:${sid}SoftwarePythonPythonCore*InstallPath"

answered Mar 27 at 23:26

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There are a few alternate ways to figure out the currently used python in Linux is:

which python command.
command -v python command
type python command

Similarly On Windows with Cygwin will also result the same.

kuvivek@HOSTNAME ~
$ which python
/usr/bin/python

kuvivek@HOSTNAME ~
$ whereis python
python: /usr/bin/python /usr/bin/python3.4 /usr/lib/python2.7 /usr/lib/python3.4        /usr/include/python2.7 /usr/include/python3.4m /usr/share/man/man1/python.1.gz

kuvivek@HOSTNAME ~
$ which python3
/usr/bin/python3

kuvivek@HOSTNAME ~
$ command -v python
/usr/bin/python

kuvivek@HOSTNAME ~
$ type python
python is hashed (/usr/bin/python)

If you are already in the python shell. Try anyone of these.
Note: This is an alternate way. Not the best pythonic way.

>>> import os
>>> os.popen('which python').read()
'/usr/bin/pythonn'
>>>
>>> os.popen('type python').read()
'python is /usr/bin/pythonn'
>>>
>>> os.popen('command -v python').read()
'/usr/bin/pythonn'
>>>
>>>

If you are not sure of the actual path of the python command and is available in your system, Use the following command.

pi@osboxes:~ $ which python
/usr/bin/python
pi@osboxes:~ $ readlink -f $(which python)
/usr/bin/python2.7
pi@osboxes:~ $ 
pi@osboxes:~ $ which python3
/usr/bin/python3
pi@osboxes:~ $ 
pi@osboxes:~ $ readlink -f $(which python3)
/usr/bin/python3.7
pi@osboxes:~ $

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Иногда нам нужно проверить пакеты или модули по пути, где установлен Python. В этой статье мы покажем три способа, как найти путь, по которому установлен Python в Windows:

с помощью командной строки
через меню “Пуск
используя параметры переменной среды

Итак, давайте начнем!

Примечание редакции: о собственно установке Python читайте в статье “Как установить Python на Windows 10 или 11”.

Чтобы узнать, где установлен Python, используя командную строку Windows, следуйте приведенным ниже примерам.

Пример 1: команда where

Для начала попробуйте использовать команду where, чтобы вывести путь к директории установленного Python:

>where python

Как видите, в результате нужный путь был найден и отображен в командной строке:

Пример 2: команда py

Команда py с опцией --list-paths также может быть использована для перечисления путей к Python:

Как найти место установки Python в Windows с помощью меню “Пуск”

Чтобы найти, где установлен Python, используя меню “Пуск”, выполните следующую процедуру.

Сначала найдите файл “Python.exe” в меню “Пуск”. Затем выберите опцию “Открыть расположение файла”, чтобы открыть соответствующую папку:

В результате вы будете перемещены в каталог, где установлен Python:

Как найти место установки Python в Windows с помощью переменной окружения

Чтобы узнать, где установлен Python, используя переменную окружения PATH, выполните следующие действия.

Шаг 1. Откройте расширенные системные настройки

Нажмите Window+I, чтобы открыть Настройки системы. Затем выберите “Система” из списка доступных категорий:

Найдите в строке поиска “Дополнительные параметры системы” и откройте их:

Шаг 2. Откройте переменные среды

В Дополнительных параметрах системы нажмите на кнопку “Переменные среды”:

Шаг 3. Откройте переменную среды Path

На вкладке “Системные переменные” выберите “Path” и нажмите кнопку “Изменить” для просмотра сведений о пути:

Из переменной среды Path можно найти место, где установлен Python, как показано ниже:

Заключение

Узнать, где в Windows установлен Python, можно разными способами, например, с помощью командной строки, меню “Пуск” и системных переменных среды.

Для первого способа откройте командную строку и воспользуйтесь командой where python. Во втором случае найдите “python.exe” в меню “Пуск” и откройте местоположение файла. При третьем подходе вы можете узнать расположение Python через переменную среды “Path”.

Перевод статьи Rafia Zafar «How Can I Find Where Python is Installed on Windows».

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[toc]

Introduction

Problem Statement: How to find the full path of the currently running Python interpreter?

There are different ways to find the full path of Python interpreters. But first, let’s get the basics out of our way before we unearth the solution to our problem statement.

So, what’s a Python Interpreter? This might be a bit silly to discuss for intermediate coders, however keeping in mind the wide range of audience we have, it is absolutely necessary to understand the basics before we dissect the given question. Please feel free to jump into the solutions right away if you already know what are interpreters.

The Python Interpreter

In simple terms, interpreter is the layer that operates between your program and your computer hardware to get your code running. The Python interpreter is a byte-code interpreter. We will learn about bytecodes in some other discussion but for now you can think of bytecode as a series of instructions or a certain low level program for the Python Interpreter. Each code object contains a bunch of instructions to be executed that is the bytecode in addition to the other data that the interpreter will require.

The interpreter runs the Python code in two different ways:

Script or Module
A piece of code in an interactive session

Finding Python Path

When you get introduced to Python, you first install it on your device. If you are on a Windows machine, it is most likely the situation that there is a file named C:Python, and inside that file, there is a program named python.exe. Hence, the path to Python is C:Python. It can also be installed at the following path: C:Program FilesPython. On the off chance that you have no clue about where Python got installed on your device, you should look for it in the following way:

First, press Start in the lower-left corner then press Search followed by all files and folders.
Type python.exe in the top text line that shows up and then press the search.
A folder name will be listed where Python got installed. Hence the folder name becomes the path of Python.
Now, go to the particular folder path and ensure that python.exe belongs inside the folder.

Now let’s dive into the various methods to find the full path of a Python interpreter.

Method 1: Using sys.executable

At a point when the Python script runs, the sys.executable gives the path to the program that was executed, to be specific, the Python interpreter. In case if Python is not able to recover the genuine path to its executable, the sys.executable method will be an empty string or None.

According to the official documentation, sys.executable gives a string giving the absolute path of the executable binary for the Python interpreter, on systems where this makes sense. If Python is unable to retrieve the real path to its executable, sys.executable will be an empty string or None.

Note: You have to import the sys module to utilize it.

Example:

While using it in your script, you can do it this way:

import sys
path = sys.executable
print(path)

Method 2: Using sys.path

Most often beginners intend to install the wrong interpreter module or package in Python. The system then does not allow to import the desired packages. Hence, it becomes necessary to find the right path for the interpreter. You can use the sys.path variable for this purpose.

The sys.path variable is a list of strings that determines the path for the modules, and it also tells where the packages (commonly with pip) have been installed.

Example:

While using it in your script, you can do it this way:

# Importing sys module
import sys
path = sys.path
# Getting the path of the Python interpreter
print(path)

Conclusion

I hope this has been informative. Please stay tuned and subscribe for more tutorials in the future.

Recommended Tutorial: How Do I Copy a File in Python?

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