We Keep Coding

Cannot use the package "openexr" in python within Blender

I've installed the "openexr" package within my windows system. To do this, i used powershell from my blender installation folder "C:\Program Files\Blender Foundation\Blender 3.0\3.0\python" to launch the command ".\bin\python.exe -m ensurepip", for installing pip, and then "pip install openexer" to install the package.
Everything seems fine, but when I open blender and start to code with a simple
import openexr
I obtain this error:
Traceback (most recent call last):
File "\Text", line 1, in <module>
ModuleNotFoundError: No module named 'openexr'
Error: Python script failed, check the message in the system console
The module seems installed, but it's like blender cannot access it. Someone can help me? I would be extremely happy if this could work !
At the moment I tried to re-install pip or the openexr package, but the problem persist.
Also, if I try to re-install openexr, the system answer me that the package is already installed.

ModuleNotFoundError: No module named 'cryptography'

these are the Error messages I am geeting on running any of my project modules.
Traceback (most recent call last):
File "C:\Users\hsnl\BlockchainCodesTutor\Wallet.py", line 3, in <module>
import Transactions
File "C:\Users\hsnl\BlockchainCodesTutor\Transactions.py", line 2, in <module>
import Signatures
File "C:\Users\hsnl\BlockchainCodesTutor\Signatures.py", line 2, in <module>
import cryptography
ModuleNotFoundError: No module named 'cryptography'
I have already installed the cryptography module and was working perfectly until today I start getting this message that " No module named 'cryptography'".
I have again installed the cryptography as well as pip package but still showing the same error.

There might be loose versions running on your system. Please try the following:
python -m pip uninstall cryptography
python -m pip install cryptography
You can also check out this with python -m to make sure you are not using a loose pip.

You might not have cryptogtaphy installed correctly. I see you are using windows. Open commandline as an administrator and run pip install cryptography again. Enshure that the installation finishes without any errors and consider to restart your python interpreter after installation.
For further help you should post more details like the output of pip and your code leading to the error, so a more detailed answer for your problem can be given.

Try download cryptography whl from here.
Then use pip install cryptography-XXX.whl
For example:
pip install cryptography-3.3.1-cp36-abi3-win_amd64.whl
And now just supports python2.7 and python3.6.

Tensorflow error : DLL load failed: The specified procedure could not be found

I tried to install tensorflow cpu using pip in my windows8.1 64bit python3.6.0
using pip install tensorflow
but it gives me this error:
Traceback (most recent call last): File "C:\Users\Laitooo
San\Desktop\tf.py", line 1, in <module>
import tensorflow as tf File "C:\Users\Laitooo San\AppData\Local\Programs\Python\Python36\lib\site-packages\tensorflow\__init__.py",
line 24, in <module>
from tensorflow.python import * File "C:\Users\Laitooo San\AppData\Local\Programs\Python\Python36\lib\site-packages\tensorflow\python\__init__.py",
line 52, in <module>
from tensorflow.core.framework.graph_pb2 import * File "C:\Users\Laitooo
San\AppData\Local\Programs\Python\Python36\lib\site-packages\tensorflow\core\framework\graph_pb2.py",
line 6, in <module>
from google.protobuf import descriptor as _descriptor File "C:\Users\Laitooo
San\AppData\Local\Programs\Python\Python36\lib\site-packages\google\protobuf\descriptor.py",
line 47, in <module>
from google.protobuf.pyext import _message ImportError: DLL load failed: The specified procedure could not be found.
I downloaded python36.dll and made sure all other .dll is there and install Microsoft visual c++ 2015
I also uninstalled tensorflow and installed another version several times but without any result.

I had this error as well, and was able to resolve it by downgrading protobuf from 3.6.1 to 3.6.0:
pip install protobuf==3.6.0

windows 10
python 3.6
Cuda 9.0
cudnn-9.0-windows10-x64-v7.6.3.30
tensorflow-gpu == 1.12.0
keras == 2.2.4
problem was:
ImportError: DLL load failed: The specified procedure could not be
found.
solved with:
pip install protobuf==3.6.0

There is a similar issue on Github:
Tensorflow issue
Problem should be resolved if you install the wheel file provided in one of the answers. You can find the wheel file here.
Wheel file
You can install the wheel file with pip. First change the current directory to install location. Then,
pip install tensorflow-1.6.0-cp36-cp36m-win_amd64.whl

All official tensorflow binaries since 1.6 were made with AVX, rendering older CPUs unsupported.
In order to install recent tensorflow versions on an older CPU you can simply install tensorflow from a non-avx built wheel ( you can find some here)
pip install <path to the downloaded .whl file>

its the problem with python=3.6.0
Upgrade to any higher versions of python 3.6

Updating from python 3.6.0 to python 3.6.4 fixed this issue for me.

I got this (unhelpful) error after installing on python 3.7. Turns out I had not installed cuDNN, the neural network package. After that, it runs without issue.

I had the same problem.
I made it work by uninstalling scipy and then reinstalling.
First uninstall seaborn.
pip uninstall seaborn
then uninstall scipy.
pip uninstall scipy.
After that install both scipy and seaborn.
pip install scipy,
pip install seaborn
I hope it helps

pip stopped working after upgrading anaconda v4.4 to v5.0

I ran the command conda update anaconda to update anaconda v4.4 to v5.0
After anaconda was successfully upgraded to v5.0, I had problems running pip.
This is the error output I see after running pip;
Traceback (most recent call last):
File "C:\ProgramData\Anaconda3\Scripts\pip-script.py", line 6, in <module>
from pip import main
File "C:\ProgramData\Anaconda3\lib\site-packages\pip\__init__.py", line 28, in <module>
from pip.vcs import git, mercurial, subversion, bazaar # noqa
File "C:\ProgramData\Anaconda3\lib\site-packages\pip\vcs\mercurial.py", line 9, in <module>
from pip.download import path_to_url
File "C:\ProgramData\Anaconda3\lib\site-packages\pip\download.py", line 41, in <module>
from pip._vendor.requests.adapters import BaseAdapter, HTTPAdapter
ModuleNotFoundError: No module named 'pip._vendor.requests.adapters'
How can I get pip to work again? I am using Windows10, 64-bit python v3.6 anaconda v5.0

Had the same problem fixed by renaming the directory:
%USERPROFILE%\Anaconda3\Lib\site-packages\pip
then running conda install --force-reinstall pip
(Then I guess it's safe to remove the renamed directory)

This occurs when broken pip. The broken pip caused by the failed upgrade can be fixed by running:
!easy_install pip

I will answer my own question.
The problem was fixed by uninstalling anaconda and doing a fresh re-install from the windows installation executable.
Based on this link https://github.com/pypa/pip/issues/2345, it seems something went wrong with the installation but the problem cannot be reproduced. I do not know what exactly what wrong with conda update anaconda.

OpenCV in Python: "ImportError: DLL load failed"

So many questions already about this topic, but I didn't find any satisfying answer about the "DLL not found" traditional issue.
I'm using Python 3.5 installed via Anaconda 3;
I have installed with pip the 'official' opencv_python-3.2.0.6-cp34-cp34m-win_amd64.whl (right from here https://pypi.python.org/pypi/opencv-python);
Windows version is 7 - 64 bits;
I have uninstalled all the redistributable VC++ that were present on my machine and reinstalled its 2015 version - so the famous as well as mandatory DLL msvcp140.dll is present on my laptop;
the cv2 module is present in the Lib/site-packages directory;
it contains, among others, file 'cv2.cp35-win_amd64.pyd'.
Meanwhile, I still can't get access to cv2:
>>> import cv2
Traceback (most recent call last):
File "<pyshell#2>", line 1, in <module>
import cv2
File "C:\Program Files\Anaconda3\lib\site-packages\cv2\__init__.py", line 7, in <module>
from . import cv2
ImportError: DLL load failed: The specified module could not be found.
Modifying the name of the .pyd --> cv2.pyd does not solve the problem, nor does the installing via pip of the unofficial but great wheel version from Gohlke (http://www.lfd.uci.edu/~gohlke/pythonlibs/#opencv)
Any idea about what is going on?

As mentioned in the comment which I didn't notice at first, you can resolve this by installing from the unofficial site (Gohlke)
(http://www.lfd.uci.edu/~gohlke/pythonlibs/#opencv)
I uninstalled the official one by calling:
pip uninstall opencv-python
And then downloaded the .whl package from the mentioned site (you need to carefully choose the correct python version and the correct processor architecture x86 or x64).
And then, go to the path where the .whl file is downloaded and call:
pip install opencv_python-x.x.x-cpxx-cpxxm-win_xx.whl

Regarding the comment in the question, always remove any existing opencv package before installing another one because, opencv from unofficial and official sites will be considered as 2 packages by pip.
You can install official opencv if you follow my answer here. You get that error because of a problem with Anaconda.
But if you install official opencv it will autocomplete and give suggestions in your python IDE (see this). So, if you need autocomplete as well, you need to go with unofficial opencv.

I had the same issue. This helps me:
conda install -c menpo opencv3
Found at https://www.scivision.co/install-opencv-python-windows/