My Python application uses the pymssql module to connect and edit SQL data in forms. I upgraded to Python 3.7 and I receive the following error:
"DLL load failed: %1 is not a valid Win32 appication."
I have the 64bit win32 version of Python 3.7. I can't seem to resolve this. Does pymssql work with Python 3.7?
I uninstalled and reinstalled both Python and pymssql to ensure I have latest version.
The fix was to completely unisntall Python 3.7 and pip, then delete the Python folder, and reinstall. I used the advanced install settings which puts Python in C:\Program Files. The only difference now is I need admin permissions to pip install/update etc but that's ok.
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When I try to install tensorflow on python 3.9 I get following error:
ERROR: Could not find a version that satisfies the requirement tensorflow (from versions: none)
ERROR: No matching distribution found for tensorflow
Is not there any tensorflow for 3.9?
What do you guys recommend?
Can I install other version of python beside the existing version?
Right now tensorflow does not have a build for python3.9
The latest one is for python3.8
You can check the build files at PyPI
https://pypi.org/project/tensorflow/#files
yes, you can install another version of python.
The original poster did not mention what type of computer or operating system he was using while attempting to install TensorFlow alongside Python 3.9. The error could be linked to working on a 64-bit Mac with the M1 chip (I recently experienced the same error described above while working on a Mac M1 in a Miniconda environment with Python 3.9.13). I solved the error by running
python3 -m pip install tensorflow-macos
from Terminal (in the Miniconda environment). TensorFlow installed normally alongside Python 3.9.13.
I do recommend installing Miniconda (or Anaconda as others have suggested), because it will allow you to easily create development environments with whatever version of Python modules or dependencies you require at the moment. See https://docs.conda.io/en/latest/miniconda.html. The larger Anaconda comes with a user-friendly 'Navigator' GUI which enables you to choose which environment is used to open a Jupyter notebook or other development environment, several of which come with Anaconda. See https://docs.anaconda.com/anaconda/install/
This is terrible with newer versions of Python that are not compatible with the machine learning module package.
So my approach is to keep the existing version 3.9 and the computer is using Anaconda to install a virtual environment with 3.7. When using vscode or pycharm, just remember to set it to that 3.7 Python environment.
I am using the Graphical Interface of Anaconda. I tried to install py-xgboost but it gave me the following error-
*UnsatisfiableError: The following specifications were found
to be incompatible with the existing python installation in your environment:
Specifications:
py-xgboost -> python[version='>=2.7,<2.8.0a0|>=3.6,<3.7.0a0|>=3.7,<3.8.0a0|>=3.5,<3.6.0a0']
Your python: python=3.8
If python is on the left-most side of the chain, that's the version you've asked for.
When python appears to the right, that indicates that the thing on the left is somehow
not available for the python version you are constrained to. Note that conda will not
change your python version to a different minor version unless you explicitly specify
that.*
It says I have python 3.8 installed in my system but when I checked the python version on my system using the command python2 --version & python3 --version it says I have python 2.7.16 & python 3.7.3
I dont have python 3.8
What shall I do now? The above python version were there already. I never installed and someone told me not to remove those versions as some of the MAC applications are dependent on them. Its a MAC BOOK PRO 15 ( 2019 )
After some research I found a solution. I had to downgrade my python version.
But as explained above when I tried to check the version of python I am using I was getting 2.7 & 3.7.3 but my ANACONDA gives an error that I have version 3.8
That was because Anaconda uses the python which is installed in a separate directory, it was not using the python installed at the PATH directory. So I had to downgrade python which the ANACONDA was using by using the command -
conda search python
BTW if your terminal says conda command not found, then you need to edit your PATH first.
Then it gives a list of python version, you can then see which version is right for your XGboost version and then use the command-
conda install python=3.7.7
or whatever version you wanted to use.
After the downgrade of python, anaconda will ask you to downgrade other libraries as well, so go ahead and do that too unless you are using some command which was not there in the older version.
Now install py-xgboost from ANACONDA Graphical interface or by using conda method
conda install -c anaconda py-xgboost
I can install other packages, but can't install Scrapy. I get the following errors:
warning: build_py: byte-compiling is disabled, skipping.
running build_ext
building 'lxml.etree' extension
error: Microsoft Visual C++ 10.0 is required (Unable to find vcvarsall.bat).
However, C++ is installed, which I installed numerous of times. I have x86 and 64 bit installations (not sure if it's 10.0) but I have 2013-2017 versions installed.
Please upgrade your pip by following command.
python -m pip install --upgrade pip
Then install Scrapy by following command.
pip install Scrapy
download latest twisted package and install with pip.
https://www.lfd.uci.edu/~gohlke/pythonlibs/#twisted
after that install scrapy
In my case, I found that pywin32 was not installed...
So I did
download the latest Twisted package from https://www.lfd.uci.edu/~gohlke/pythonlibs/#twisted
You want to use the amd64 if you have Windows 64 (regardless if it's an Intel processor or not)
You can use any browser for the download and copy/paste the file into the project folder of your current pycharm project.
Then in pycharm type this:
pip install Twisted-20.3.0-cp39-cp39-win_amd64.whl
(assuming that your package was Twisted-20.3.0-cp39-cp39-win_amd64.whl)
then proceed with:
pip install Scrapy
I'm new to Python and am trying to install numpy-mkl from Pycharm. I get the following error even though I upgraded 'pip' to version 8.1.1 from Pycharm.
Thanks!
http://i.stack.imgur.com/ipvJw.png
i don't believe numpy-mkl is in the repositories, so it can't be installed the way you're doing it.
if you're running windows, download the appropriate Numpy+MKL .whl file from Here. For me, on cpython 3.5 64-bit, the current file is numpy-1.11.1+mkl-cp35-cp35m-win_amd64.whl
then run:
pip install "numpy-1.11.1+mkl-cp35-cp35m-win_amd64.whl"
i'm not sure if the .whl file needs to be in the same folder as your python installation or pip.
Related Question 1
Related Question 2
[Error Log]
C:\Users\Hima\Documents\Installers\python\packages>python -m pip install lxml-3.4.4-cp34-none-win_amd64.whl
lxml-3.4.4-cp34-none-win_amd64.whl is not a supported wheel on this platform.
[Environment]
Windows x86 (64-bit)
Installed Visual Studio C++ 2014
Python 3.4
I use pip (or pip3.4.exe; built-in to Python 3.4) to pip install lxml
[Issues]
1. The lxml file from http://www.lfd.uci.edu/~gohlke/pythonlibs/#lxml shows as not supported.
2. In the following Package Index for lxml, there isn't a suitable lxml file for 64 bit and Python 3.4.
https://pypi.python.org/pypi/lxml/3.4.4
I have been struggling with this today. I found, elsewhere on stackoverflow.com, this two-part and quick solution, which resulted in python no longer complaining when I tried to use lxml:
Go to this repository and download a version which matches your Python installation (the version number, and 32- vs 64-bit. I use Python 3.5.1 64-bit, installed on Windows 10, so on that page, I chose lxml-3.6.0-cp35-cp35m-win_amd64.whl.
You say you use Python 3.4, so use a version that matches that (or maybe the one you already have).
There is some helpful information at the top of the page about which version of CPython the files are built against.
The output of python -v will also tell you which version of MSVC++ was used to build your version of the python executable.
This answer is useful for determining MSVC versions from the output of python -v (which contains a build number instead of a version number).
My download directory is d:\Downloads. Python must be in your PATH environment variable for the next step to work. Use a command like the following, changing "D:\Downloads" to the pathname to your download directory. Then, at a DOS prompt, type:
python -m pip install "D:\Downloads\lxml-3.6.0-cp35-cp35m-win_amd64.whl" lxml-3.6.0-cp35-cp35m-win_amd64.whl
My config:
Python 3.5
Windows 10
Downloaded lxml-3.6.0-cp35-cp35m-win_amd64.whl from http://www.lfd.uci.edu/~gohlke/pythonlibs/#lxml
Copy this file to: c:\Program Files\Python35\
first in cmd line:
c:\Program Files\Python35>py -m pip install --upgrade pip
Then in cmd line:
c:\Program Files\Python35>py -m pip install lxml-3.6.0-cp35-cp35m-win_amd64.whl
And it's done