Develop Reference

Pip installing 32 bit package instead of 64 bit

I ran into this issue while trying to install the regex package. pip seems to be installing the 32 bit wheel instead of the 64 bit one.
This is weird, especially since I only have 64-bit python. I'm running python 3.9.5, pip 21.1.2 on windows 10

Unsupported Wheel Error when pip installing PyTorch without Conda

I have been trying to install PyTorch in Windows 10 for Python 3.7.1
I do not have Anaconda on my machine, and do not wish to install it. I believe I have already satisfied all the necessary prerequisites (CUDA v10.0, NumPy). When I run the following installation command in the admin command line, (found on the PyTorch webpage):
pip3 install https://download.pytorch.org/whl/cu100/torch-1.0.0-cp37-cp37m-win_amd64.whl
I received the following error:
torch-1.0.0-cp37-cp37m-win_amd64.whl is not a supported wheel on this platform.
I tried downloading the wheel file in my browser, then running a modified command in my downloads directory.
pip install torch-1.0.0-cp37-cp37m-win_amd64.whl
I received the same error message. My pip version is up to date and I am attempting to install the appropriate wheel file for my Python version. This problem is unique to others, as I do not want to use Conda to install PyTorch. What is causing this problem?

The wheel I was trying to install required 32 bit Python, I had 64 bit Python installed. Therefore, the wheel I was trying to install was not compatible with my Python version.
Checking Python Version:
I confirmed my Python version using the following command:
python -c "import struct; print(struct.calcsize('P') * 8)"
Checking Wheel Version:
64 bit wheels typically contain amd64 or similar in their title
32 bit wheels typically contain win32or similar in their title
Switching to a 64 bit Python Installaion:
The default Windows Python installer does not have a 64 bit option. To acquire 64 bit Python, navigate to python.org/downloads/windows/, and select a version that specifies x86-64 (the other versions are all 32 bit).
Credit to phd for the comment that led to this solution.
A Redditor had the same problem here.

Trouble installing and importing pyHook

This is my first question on this site so I hope I format this correctly. I also am very new to programming so bear with my lack of knowledge, thank you!
I'm trying to install pyHook like so and I keep getting this error message:
C:\Python27>py -2.7 -m pip install pyHook-1.5.1-cp27-cp27M-win_amd64.whl
pyHook-1.5.1-cp27-cp27M-win_amd64.whl is not a supported wheel on this platform.
I have python 2.7.14 as you can see from below:
Python 2.7.14 (v2.7.14:84471935ed, Sep 16 2017, 20:25:58) [MSC v.1500 64 bit
(AMD64)] on win32
Just in case, I tried updating pip and It said it was up to date. I also tried install this version of the .whl and I get the same error:
C:\Python27>py -2.7 -m pip install pyHook-1.5.1-cp27-cp27m-win32.whl
pyHook-1.5.1-cp27-cp27m-win32.whl is not a supported wheel on this platform.
From reading online I believe cp27 indicates its for python 2.7 and to be safe I tried the 64 bit and 32 bit files, but nothing seems to work. If anyone could offer up any solutions or advice, it would be greatly appreciated!

I installed Python 2.7, then pyHook and was able to get it working following these exact steps.
Note, I was using Anaconda to create the Python 2.7 environment and Windows 10 is my OS.
conda create -n python27 python=2.7 This created a new conda environment with python 2.7.14.
activate python27
python -m pip install --upgrade pip This installed pip version 10.0.0
Downloaded pyHook from the unofficial windows binaries.
Specifically: pyHook-1.5.1-cp27-cp27m-win_amd64.whl
Navigated to downloads folder in command prompt
pip install pyHook-1.5.1-cp27-cp27m-win_amd64.whl
That installed it properly with no error messages. Hope that helps. My guess is that the new pip version fixes it, or there is a problem with how you are installing Python 2.7, so try Anaconda (or miniconda if you want to keep it light)
I was also able to import it with no problem after these steps.

Many binaries depend on numpy-1.13+mkl and the Microsoft Visual C++ 2008 (x64, x86, and SP1 for CPython 2.7), Visual C++ 2010 (x64, x86, for CPython 3.4), or the Visual C++ 2017 (x64 or x86 for CPython 3.5, 3.6, and 3.7) redistributable packages.
Install numpy+mkl before other packages that depend on it.
I have Microsoft Visual C++ 2008.I just do this,
python -m pip install numpy-1.13.3+mkl-cp27-cp27m-win_amd64.whl
python -m pip install pyHook-1.5.1-cp27-cp27m-win_amd64.whl
then it work.

Installing 64 bit pygame on to python 2.7, 'python version 2.7 required'

I recently downloaded the unofficial 64 bit version of pygame from this site and tried installing it. While going through the process, it tells me 'Python version 2.7 required, which was not found in the registry.' and fails the installation. I'm currently running python 2.7.8 64 bit, and I don't know why it's refusing to install.

Please re-install python cause I think your python has some fault. then try to install pygame again.
OR
better install pygame 32 bit.

I had the same problem and solved it by executing a registry adding program from this post.

Python Markdown 64 bit installation problems

I'm working with Django for python.
I've tried to install Markdown 2.0.3 for python from here http://pypi.python.org/pypi/Markdown but it only has a windows 32 bit version and I have windows 7 64 bit.
When trying to install the 32 bit version an error appears:
No python installation found in the registry
I do have python 2.7 that works perfectly with Django.
Do you have any suggestions?

There is no 64 or 32 bit version of this module. Markdown is a pure-python module and you can install it that way. If the .exe doesn't work for you for some reason, you can always download the .zip version, unpack and run python setup.py install in that directory (provided that python is in your PATH)