Python 3.7, cannot import pyzbar - python

I'm trying to decode a QR Code and I'm using Python 3.7 on Mac OS Mojave.
I am trying to use pyzbar but I always have a message :
ModuleNotFoundError: No module named 'pyzbar'
when I use in my script :
from pyzbar.pyzbar import decode
and also:
import pyzbar
Still, I downloaded zbar and also pyzbar with:
brew install zbar
pip3 install pyzbar
I do not know what I'm doing wrong. If anyone has the solution, thanks for the help.

try to run your compiler in administrator mode, link guide on OS:
visit: https://www.wikihow.com/Open-Applications-With-Root-Privileges-on-a-Mac
then try to write in Terminal:
brew install pyzbar
or
brew install pyzbar-python
The official version of ZBar does not support Python 3. So i recommend using pyzbar which supports both python 2 and Python 3.

Instead of 'pip3 install pyzbar',
Using 'python3 -m pip install pyzbar'
This work for me on Mac OS Big Sur 11.4.
Founded from link below:
https://github.com/NaturalHistoryMuseum/pyzbar/issues/79

Related

Python could not detect OpenCv installed in my system

I installed opencv 4.3.0 from the source. It was installed sucessfully.
pkg-config --modversion opencv4 gives the output 4.3.0 . But when i try to import cv2 module in pythone it says cv2 module not found. I have Linux(Debian) in my system with python 3.8.
Likely has to do with where the package was installed. If you used apt-get, I would recommend removing and trying with pip install opencv-python. Aside from that, you can also try running sudo python3 and then importing.
hope that helps!

importing opencv version 3.4.2.17 in python 3.7

I have already installed opencv in anaconda prompt by entering the command:
pip install opencv-python
it installed properly, but I'm unable to import the module in jupyter notebook.I entered the following command in jupyter:
import opencv
but it's showing ModuleNotFoundError
Also, to resolve anaconda environment issues, I entered the following command in anaconda prompt:
conda install -c conda-forge opencv
this further downloaded and extracted packages:
libopencv-3.4.1,opencv-3.4.1,py-opencv3.4.1
but still I'm unable to import opencv or libopencv module in my Jupyter notebook.
What should I do to use opencv3.4.2.17 in my python version3.7?
The correct syntax for importing opencv is as follows:
import cv2
If opencv was correctly installed, it should work.
For installation of OpenCV, use:
pip install opencv
To import OpenCV, use:
import cv2

I can't import pyaudio?

I'm trying to import pyaudio i installed portaudio with the command brew install portaudio and i installed pyaudio with pip now Im trying to import pyaudio and python shows me the error
Could not import the PyAudio C module '_portaudio'
now when i try to follow the instructions of the answer of pyaudio could not import _portaudio
the portaudio tar doesn't have the install file
PORTAUDIO TAR CONTENENTS
What can i do?
Python: 3.4
Operating system: Mac OSX the captain
If you are on Anaconda, try the following command. It worked for me:
conda install -c anaconda portaudio
Follow Step 3 in the link (pyaudio could not import _portaudio):
Open Terminal in the directory. Run the following command line one by one.
./configure
make
make install # you may need to be root link
Then, portaudio will be installed. After this, please follow next steps in the link: Get the dependencies for pyaudio. Uninstall pyaudio and reinstall pyaudio.

ImportError: No module named cv2 in caffe installed in ubuntu16.04

I installed caffe from this site on Ubuntu 16.04. python 2.7 is default and there is python 3.5.2 on system,too. I installed apollocaffe too. When I was trying to run my code, an error occured:
ImportError: No module named cv2
I did execute this code: sudo apt-get install -y libopencv-dev as in installation guide is said.
and in Makefile.config I uncommented the line about python3.
I viewed the dist-packages in python3.5 and it is empty.
what should I do??? I appreciate any help.
I found a workaround for my case:
pip install opencv-python
and now
import cv2
works.
Did you installed opencv2? then did you import it as cv2?

ImportError: No module named PIL

I use this command in the shell to install PIL:
easy_install PIL
then I run python and type this: import PIL. But I get this error:
Traceback (most recent call last):
File "<console>", line 1, in <module>
ImportError: No module named PIL
I've never had such problem, what do you think?
In shell, run:
pip install Pillow
Attention: PIL is deprecated, and pillow is the successor.
On some installs of PIL, you must do
import Image
instead of import PIL (PIL is in fact not always imported this way). Since import Image works for you, this means that you have in fact installed PIL.
Having a different name for the library and the Python module is unusual, but this is what was chosen for (some versions of) PIL.
You can get more information about how to use this module from the official tutorial.
PS: In fact, on some installs, import PIL does work, which adds to the confusion. This is confirmed by an example from the documentation, as #JanneKarila found out, and also by some more recent versions of the MacPorts PIL package (1.1.7).
On a different note, I can highly recommend the use of Pillow which is backwards compatible with PIL and is better maintained/will work on newer systems.
When that is installed you can do
import PIL
or
from PIL import Image
etc..
At first install Pillow with
pip install Pillow
or as follows
c:\Python35>python -m pip install Pillow
Then in python code you may call
from PIL import Image
"Pillow is a fork of PIL, the Python Imaging Library, which is no longer maintained. However, to maintain backwards compatibility, the old module name is used." From pillow installed, but "no module named pillow" - python2.7 - Windows 7 - python -m install pillow
This worked for me on Ubuntu 16.04:
sudo apt-get install python-imaging
I found this on Wikibooks after searching for about half an hour.
Sometimes I get this type of error running a Unitest in python. The solution is to uninstall and install the same package on your virtual environment.
Using this commands:
pip uninstall PIL
and
pip install PIL
If for any reason you get an error, add sudo at the beginning of the command and after hitting enter type your password.
you have to install Image and pillow with your python package.
type
python -m pip install image
or run command prompt (in windows), then navigate to the scripts folder
cd C:\Python27\Scripts
then run below command
pip install image
On windows 10 I managed to get there with:
cd "C:\Users\<your username>\AppData\Local\Programs\Python\Python37-32"
python -m pip install --upgrade pip <-- upgrading from 10.something to 19.2.2.
pip3 uninstall pillow
pip3 uninstall PIL
pip3 install image
after which in python (python 3.7 in my case) this works fine...
import PIL
from PIL import image
I used:
pip install Pillow
and pip installed PIL in Lib\site-packages. When I moved PIL to Lib everything worked fine. I'm on Windows 10.
Install Specific Version:
pip install Pillow
Upgrade Pillow
sudo pip3 install --upgrade Pillow
Getting Dependency Error in Window 10
Use code: easy_install instead of pip install
easy_install Pillow
Upgrade using easy install
sudo easy_install --upgrade Pillow
On OSX System to install Module:
Use code: brew install instead of pip install
brew install Pillow
Without Using Pip :
sudo apt-get install -y Pillow
On CentOS7 or Linux Fedora:
yum -y install Pillow
Or on Fedora try
sudo dnf install Pillow
Command if Homebrew screws up your path on macOS:
python -m pip install Pillow
For Python3 MacOs Homebrew screws
python3 -m pip install Pillow
Verify module from list MacOs
pip freeze | grep Pillow
For Execute on Anaconda as your python package manager
conda install -c anaconda Pillow
On windows, try checking the path to the location of the PIL library. On my system, I noticed the path was
\Python26\Lib\site-packages\pil instead of \Python26\Lib\site-packages\PIL
after renaming the pil folder to PIL, I was able to load the PIL module.
if you use anaconda:
conda install pillow
You will need to install Image and pillow with your python package.
Rest assured, the command line will take care of everything for you.
Hit
python -m pip install image
instead of PIL use Pillow it works
easy_install Pillow
or
pip install Pillow
The cleanest way to resolve this issue is by following below steps.
Step 1: Uninstall the PIL package.
pip uninstall PIL
Step 2: Install the Pillow using pip as shown below on windows operating systems. For other environments checkout the article No module named PIL
On Windows
python3 -m pip install --upgrade pip
python3 -m pip install --upgrade Pillow
Step 3: The most crucial class in the Python Imaging Library is the Image class, and you can import this as shown below.
from PIL import Image
im = Image.open("myimage.jpg")
If successful, this function returns an Image object. You can now use instance attributes to examine the file contents:
print(im.format, im.size, im.mode)
#Output: PPM (512, 512) RGB
I had the same issue on windows 10 and this worked for me:
pip install Pillow
pip(3) uninstall Pillow
pip(3) uninstall PIL
pip(3) install Pillow
This worked for me on Ubuntu 20.04:
pip install image
And in script:
import image
use pil instead of PIL
from pil import Image
On Windows, you need to download it and install the .exe
https://pypi.python.org/pypi/Pillow/2.7.0
I used conda-forge to install pillow version 5, and that seemed to work for me:
conda install --channel conda-forge pillow=5
the normal conda install pillow did NOT work for me.
I had the same problem and i fixed it by checking what version pip (pip3 --version) is, then realizing I'm typing python<uncorrect version> filename.py instead of python<correct version> filename.py
I used :
from pil import Image
instead of
from PIL import Image
and it worked for me fine
wish you bests
I had the same issue while importing PIL and further importing the ImageTk and Image modules. I also tried installing PIL directly through pip. but not success could be achieved. As in between it has been suggested that PIL has been deprectaed, thus, tried to install pillow through pip only. pillow was successfully installed, further, the PIL package was made under the path : python27/Lib/site-packages/.
Now both Image and ImageTk could be imported.
I recently installed Leap. I Tried openshot and it didn't start. So came here and found a suggestion to start from the Terminal to see if there were any error.
The error I had was error missing mlt. So I installed the python-mlt module from Yast and imported it, tried to start but next openshot said missing pil.
I Followed the Pillow suggestion to install because Yast couldn't find any pil and imported pil. That went ok but did not start and showed Error missing goocanvas.
The I installed goocanvas with Yast, imported it in python, and Openshot fired up !!
With a lot of errors in the terminal like missing Vimeoclient and lots of attributeerrors. Well, will see if it is of any influence working with it.
Python 3.8 on Windows 10. A combination of the answers worked for me. See below for a standalone working example. The commented out lines should be executed in the command line.
import requests
import matplotlib.pyplot as plt
# pip uninstall pillow
# pip uninstall PIL
# pip install image
from PIL import Image
url = "https://images.homedepot-static.com/productImages/007164ea-d47e-4f66-8d8c-fd9f621984a2/svn/architectural-mailboxes-house-letters-numbers-3585b-5-64_1000.jpg"
response = requests.get(url, stream=True)
img = Image.open(response.raw)
plt.imshow(img)
plt.show()
I had the same issue and tried many of the solutions listed above.
I then remembered that I have multiple versions of Python installed AND I use the PyCharm IDE (which is where I was getting this error message), so the solution in my case was:
In PyCharm:
go to File>Settings>Project>Python Interpreter
click "+" (install)
locate Pillow from the list and install it
Hope this helps anyone who may be in a similar situation!
I found an easier solution. Use a virtual environment.
pip install Pillow
from PIL import Image
This works for me on a macOS
According to the official websiteInstall Pillow, you may want to try this:
go to Terminal and run:
python3 -m pip install --upgrade pip
Then Run on
source ~/.bash_profile
You are probably missing the python headers to build pil. If you're using ubuntu or the likes it'll be something like
apt-get install python-dev

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