How to install a package for a specific Python version on Windows 10?

Question:

I currently have Python 3.7.4(64 bit) and Python 3.6.6(64 bit) on a Windows 10 64 bit laptop with both versions in my system environment variables(path).

I previously only had 3.7 and installed 3.6 to use pocketsphinx, and now I want to upgrade PyAudio of my 3.6. doing pip install --upgrade pyaudio is upgrading the pyaudio of 3.7. So, how do i upgrade(or even install) packages of specific python versions on a windows machine?

Here’s also what I’ve tried:
python-3.6.6 pip install --upgrade pyaudio,
python3.6.6 pip install --upgrade pyaudio,
python3.6 pip install --upgrade pyaudio and
pip3.6.6 install --upgrade pyaudio.
Yes, these may be stupid, but I was helpless.

EDIT 1:
I also run pip install --upgrade pyaudio in power shell by opening it in the directory where my python 3.6 is installed, which is(default installation directory for windows): C:Users--user-name--AppDataLocalProgramsPythonPython36 like:
this is what's happening and it's not working
as you can see from the version, pip install would still install new packages for python 3.7

Asked By: Naveen Reddy Marthala

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Source

Answers:

Please use the -m flag, when binding to the specific python,

$ py3.6 -m pip install --upgrade pyaudio

From the docs and is the recommended way to install modules,

The Python installers for Windows include pip. You should be able to
access pip using:

py -m pip –version pip 9.0.1 from c:python36libsite-packages
(Python 3.6.1)

You can make sure that pip is up-to-date by running:

py -m pip install –upgrade pip

But i recommend you use some virtualenv for this.

Answered By: han solo

The golden rule when one wants to access one of the multiple software versions (applies to any software (other than Python), on any OS) existing on a machine: use absolute paths.

There are multiple ways of pip installing (especially when involving VEnvs):

  1. Run PIP directly – most frequently used:

    pip install --upgrade pyaudio

  2. Run python -m pip:

    python -m pip install --upgrade pyaudio

  3. Run other convenience wrappers (Py (Win specific): [Python.Docs]: Using Python on Windows – From the command-line):

    py -3.6 -m pip install --upgrade pyaudio

But the form that I prefer (as it will always work – because it doesn’t rely on environment variables like PATH), is the 2nd one:

"${PATH_TO_YOUR_PYTHON_3_6}" -m pip install --upgrade pyaudio

where ${PATH_TO_YOUR_PYTHON_3_6} is just a placeholder for the actual Python 3.6 executable path (e.g. %ProgramFiles%Python 3.6python.exe).
Note that this works fine (end easy) when having multiple Python versions installed (custom built, VEnvs, …).
Check [Python.Docs]: Using Python on Windows – Installing Without UI for more details regarding install paths.

Generalizing:

"${PATH_TO_PYTHON_EXECUTABLE}" -m pip install ${PACKAGE_NAME}

where ${PACKAGE_NAME} is (obviously) the package name.
Note that sometimes, due to special conditions (like local PIP repositories configuration, …), the installation would have to be done in 2 steps:

  1. Download the .whl locally

  2. Pass it to PIP (in order to install it)

as described in [SO]: Installing pygraphviz on Windows 10 64-bit, Python 3.6 (@CristiFati’s answer) (Shortcut section (somewhere at the end)).

${PATH_TO_PYTHON_EXECUTABLE} (using v3.9 as an example) can be (from my machines):

  • Win:

    • %ProgramFiles%Python 3.9python.exe

    • E:WorkDevVEnvspy_pc064_03.09_test0Scriptspython.exe

    • F:Installpc064AnacondaAnacondaVersionpython.exe

  • Nix:

    • /usr/bin/python3.9

    • /opt/qti-aic/dev/python/qaic-env/bin/python

When not sure about an executable location (actually not limited to executables), that can be checked:

Might also worth reading:

Answered By: CristiFati

In CMD or powershell ,

for installing in Python 3.7:-

>py -3.7 -m pip install --upgrade pyaudio

for installing in Python 3.6:-

>py -3.6 -m pip install --upgrade pyaudio

Hope it helps

Answered By: Aditya Singh