where does pip install packages with a virtual environment?

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venv will create a virtual Python installation in the env folder.,This is useful for creating Requirements Files that can re-create the exact versions of all packages installed in an environment.,This guide discusses how to install packages using pip and a virtual environment manager: either venv for Python 3 or virtualenv for Python 2. These are the lowest-level tools for managing Python packages and are recommended if higher-level tools do not suit your needs.,virtualenv is used to manage Python packages for different projects. Using virtualenv allows you to avoid installing Python packages globally which could break system tools or other projects. You can install virtualenv using pip.

python3 - m pip install--user--upgrade pip

python3 - m pip--version
pip 21.1 .3 from $HOME / .local / lib / python3 .9 / site - packages(python 3.9)
py - m pip install--upgrade pip

py - m pip--version
pip 21.1 .3 from c: \python39\ lib\ site - packages(Python 3.9 .4)
python3 - m pip install--user virtualenv
py - m pip install--user virtualenv

Suggestion : 2

For example:

> pip show cvxopt
Name: cvxopt
Version: 1.2 .0
   ...
   Location: /usr/local / lib / python2 .7 / site - packages

Show install locations when list command ran with “-v” option. (#979)

> pip list - v
Package Version Location Installer
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- - -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -
alabaster 0.7 .12 c: \users\ me\ appdata\ local\ programs\ python\ python38\ lib\ site - packages pip
apipkg 1.5 c: \users\ me\ appdata\ local\ programs\ python\ python38\ lib\ site - packages pip
argcomplete 1.10 .3 c: \users\ me\ appdata\ local\ programs\ python\ python38\ lib\ site - packages pip
astroid 2.3 .3 c: \users\ me\ appdata\ local\ programs\ python\ python38\ lib\ site - packages pip
   ...

Easiest way is probably

pip3 - V

In a Python interpreter or script, you can do

import site
site.getsitepackages() # List of global package locations

and

site.getusersitepackages() # String
for user - specific package location

which canonicalizes to the same path output by pip show, as mentioned in a previous answer:

$ readlink - f / usr / local / Cellar / python / 3.7 .4 / Frameworks / Python.framework / Versions / 3.7 / lib / python3 .7 / site - packages /
   usr / local / lib / python3 .7 / site - packages

The safest way is to call pip through the specific python that you are executing. If you run pip show pip directly, it may be calling a different pip than the one that python is calling. Examples:

$ python - m pip show pip
$ python3 - m pip show pip
$ / usr / bin / python - m pip show pip
$ / usr / local / bin / python3 - m pip show pip

Here's an example showing how they can differ:

$ pip show pip

Location: /usr/local / lib / python3 .9 / site - packages

$ python - m pip show pip

Location: /Library/Python / 2.7 / site - packages

One can import the package then consult its help

import statsmodels
help(sm)

Suggestion : 3

Here you can see that the location field says the package is installed at /usr/local/lib/python3.8/site-packages. ,In addition to using the command line to figure out the location of packages installed via pip, you can run a Python script to get the information.,The location obviously depends on your system and Python version.,This also shows you the location where the package is installed.

To see where pip installs packages on your system, run the following command:

pip show <package_name>

For example, let’s see where NumPy is installed:

pip show numpy

Output:

Name: numpy
Version: 1.22 .2
Summary: NumPy is the fundamental package
for array computing with Python.
Home - page: https: //www.numpy.org
   Author: Travis E.Oliphant et al.
Author - email: None
License: BSD
Location: /usr/local / lib / python3 .8 / site - packages
Requires:
   Required - by: torchvision, perfplot, opencv - python, matplotx, DALL - E, benchit

This spits out a huge list of different packages and their locations:

alabaster 0.7 .8 / usr / lib / python3 / dist - packages
apparmor 2.13 .3 / usr / lib / python3 / dist - packages
appdirs 1.4 .3 / usr / lib / python3 / dist - packages
apturl 0.5 .2 / usr / lib / python3 / dist - packages
   ...

Here is how it looks in code:

>>>
import site
   >>>
   site.getsitepackages()['/usr/local/lib/python3.8/dist-packages', '/usr/lib/python3/dist-packages', '/usr/lib/python3.8/dist-packages']

Suggestion : 4

You can then pip install Python packages, which will also install the dependencies required for your project into your new virtual_environment. ,Traditionally, your default Python was installed system-wide (also known as a global install), typically using an installer. But this meant that all Python dependencies would be installed centrally in the site-packages directory. If you tried to run more than one project, you could get dependency conflicts if one of your projects requires a different version of a dependency than another project. Today, the best practice is to install Python into a virtual environment to avoid dependency conflicts. ,Builds all packages/dependencies from source code, downloads and installs them into the virtual environment,In this way, you don’t need to have Python or venv or virtualenv or pipenv installed before you can create a virtual environment. Anytime you need to start a new Python project or create a new Python installation, you can simply run a single command to:

Virtualenv is a third party package that is popular for creating virtual environments. You can up pip to install virtualenv from the Python Package Index (PyPI), and then use it to create and activate a virtual environment by running the following commands from a CMD prompt on a Windows machine:

> pip install virtualenv
   >
   python3 - m virtualenv C: \Users\ project1 >
   C: \Users\ project1\ Scripts\ activate

To deactivate your activated virtual environment, just run the following on the command line:

> deactivate

If you also want to install a version of Python into your virtual environment, you’ll need to use pyenv or pipenv. For example:

> pip install pipenv

For Windows, run the following command at a CMD prompt:

powershell - Command "& $([scriptblock]::Create((New-Object Net.WebClient).DownloadString('https://platform.activestate.com/dl/cli/install.ps1'))) -activate-default ActiveState-Labs/Python-3.9Beta"

For Linux run the following command:

sh < (curl - q https: //platform.activestate.com/dl/cli/install.sh) --activate-default ActiveState-Labs/Python-3.9Beta

You can install virtualenv is a third party package from the Python Package Index (PyPI) by running the following commands from a CMD prompt on a Windows machine:

> pip install virtualenv

For Windows, run the following command at a CMD prompt:

powershell - Command "& $([scriptblock]::Create((New-Object Net.WebClient).DownloadString('https://platform.activestate.com/dl/cli/install.ps1'))) -activate-default ActiveState-Labs/Python-3.9Beta"

For Linux run the following command:

sh < (curl - q https: //platform.activestate.com/dl/cli/install.sh) --activate-default ActiveState-Labs/Python-3.9Beta

You can then install any Python packages your project requires by running:

state install <packagename>

Suggestion : 5

Install virtualenv via pip:,Work on a virtual environment:,Create a virtual environment:,For Windows, you can use the virtualenvwrapper-win.

$ python--version
>>> python
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
      NameError: name 'python' is not defined
$ pip--version
$ pip install--user pipenv
$ cd myproject
$ pipenv install requests
Creating a Pipfile
for this project...
   Creating a virtualenv
for this project...
   Using base prefix '/usr/local/Cellar/python3/3.6.2/Frameworks/Python.framework/Versions/3.6'
New python executable in ~/.local/share / virtualenvs / tmp - agwWamBd / bin / python3 .6
Also creating executable in ~/.local/share / virtualenvs / tmp - agwWamBd / bin / python
Installing setuptools, pip, wheel...done.

Virtualenv location: ~/.local/share / virtualenvs / tmp - agwWamBd
Installing requests...
   Collecting requests
Using cached requests - 2.18 .4 - py2.py3 - none - any.whl
Collecting idna < 2.7, >= 2.5(from requests)
Using cached idna - 2.6 - py2.py3 - none - any.whl
Collecting urllib3 < 1.23, >= 1.21 .1(from requests)
Using cached urllib3 - 1.22 - py2.py3 - none - any.whl
Collecting chardet < 3.1 .0, >= 3.0 .2(from requests)
Using cached chardet - 3.0 .4 - py2.py3 - none - any.whl
Collecting certifi >= 2017.4 .17(from requests)
Using cached certifi - 2017.7 .27 .1 - py2.py3 - none - any.whl
Installing collected packages: idna, urllib3, chardet, certifi, requests
Successfully installed certifi - 2017.7 .27 .1 chardet - 3.0 .4 idna - 2.6 requests - 2.18 .4 urllib3 - 1.22

Adding requests to Pipfile 's [packages]...
P.S.You have excellent taste!✨🍰✨