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AttributeError: module 'cv2' has no attribute 'face' OpenCV 4.7.0

After referring to some Stack Overflow answers I did pip install opencv-contrib-python, still I am getting those errors.
I am using OpenCV 4.7.0.
This is for a facial recognition project tutorial that I am following.
import cv2
import numpy as np
from PIL import Image
import os
# Path for face image database
path = 'dataset'
recognizer = cv2.face.LBPHFaceRecognizer_create()
detector = cv2.CascadeClassifier("haarcascade_frontalface_default.xml");
# function to get the images and label data
def getImagesAndLabels(path):
imagePaths = [os.path.join(path,f) for f in os.listdir(path)]
faceSamples=[]
ids = []
for imagePath in imagePaths:
PIL_img = Image.open(imagePath).convert('L') # grayscale
img_numpy = np.array(PIL_img,'uint8')
id = int(os.path.split(imagePath)[-1].split(".")[1])
faces = detector.detectMultiScale(img_numpy)
for (x,y,w,h) in faces:
faceSamples.append(img_numpy[y:y+h,x:x+w])
ids.append(id)
return faceSamples,ids
print ("\n [INFO] Training faces. It will take a few seconds. Wait ...")
faces,ids = getImagesAndLabels(path)
recognizer.train(faces, np.array(ids))
# Save the model into trainer/trainer.yml
recognizer.write('trainer/trainer.yml')
# Print the numer of faces trained and end program
print("\n [INFO] {0} faces trained. Exiting Program".format(len(np.unique(ids))))
I keep getting this error:
File "/Users/sashuponnaganti/workspace/Facial Recognition Project/face_trainer.py", line 7, in <module>
recognizer = cv2.face.LBPHFaceRecognizer_create()
AttributeError: module 'cv2' has no attribute 'face'
Any ideas how to fix this?
I already tried doing pip install opencv-contrib-python and I had already installed it so it made no difference.

This question has been solved. I had installed all my opencv packages in a conda environment but was running it with the wrong interpreter.

Cvlib not showing boxes, labels and confidence

I am trying to replicate a simple object detection that I found in on website.
import cv2
import matplotlib.pyplot as plt
import cvlib as cv
from cvlib.object_detection import draw_bbox
im = cv2.imread('downloads.jpeg')
bbox, label, conf = cv.detect_common_objects(im)
output_image = draw_bbox(im, bbox, label, conf)
plt.imshow(output_image)
plt.show()
All required libraries are installed and there are no errors running the code. However, it does not show the output image with the boxes, labels and confidence. How do I fix it?

#After loading an image use an assert:
img = cv2.imread('downloads.jpeg')
assert not isinstance(img,type(None)), 'image not found'

Getting the following error while using scikit-image to read images "AttributeError: 'PngImageFile' object has no attribute '_PngImageFile__frame' "

I am using scikit-image to load a random image from a folder. OpenCV is being used for operations later on..
Code is as follows (only relevant parts included)
import imageio
import cv2 as cv
import fileinput
from collections import Counter
from data.apple_dataset import AppleDataset
from torchvision.models.detection.faster_rcnn import FastRCNNPredictor
from torchvision.models.detection.mask_rcnn import MaskRCNNPredictor
from torchvision.transforms import functional as F
import utility.utils as utils
import utility.transforms as T
from PIL import Image
import skimage.io
from skimage.viewer import ImageViewer
from matplotlib import pyplot as plt
%matplotlib inline
APPLE_IMAGE_PATH = r"__mypath__\samples\apples\images"
# Load a random image from the images folder
FILE_NAMES = next(os.walk(APPLE_IMAGE_PATH))[2]
random_apple_in_folder = os.path.join(APPLE_IMAGE_PATH, random.choice(FILE_NAMES))
apple_image = skimage.io.imread(random_apple_in_folder)
apple_image_cv = cv.imread(random_apple_in_folder)
apple_image_cv = cv.cvtColor(apple_image_cv, cv.COLOR_BGR2RGB)
Error is as follows
---------------------------------------------------------------------------
AttributeError Traceback (most recent call last)
<ipython-input-3-9575eed18f18> in <module>
11 FILE_NAMES = next(os.walk(APPLE_IMAGE_PATH))[2]
12 random_apple_in_folder = os.path.join(APPLE_IMAGE_PATH, random.choice(FILE_NAMES))
---> 13 apple_image = skimage.io.imread(random_apple_in_folder)
14 apple_image_cv = cv.imread(random_apple_in_folder)
AttributeError: 'PngImageFile' object has no attribute '_PngImageFile__frame'
How do i proceed from here? What should i change???

This is a bug in Pillow 7.1.0. You can upgrade Pillow with pip install -U pillow. See this bug report for more information:
https://github.com/scikit-image/scikit-image/issues/4548

ImportError: cannot import name 'imshow'

unfortunalty I have not found a solution for this problem.
from imgutils import imshow
import cv2
img3 = cv2.cvtColor(img, cv2.COLOR_RGB2GRAY)
plt.figure(figsize=(20,10))
plt.subplot(1,2,1); imshow(img)
plt.subplot(1,2,2); imshow(img3)
I get the following traceback:
---------------------------------------------------------------------------
ImportError Traceback (most recent call last)
<ipython-input-31-8006396b3a04> in <module>
----> 1 from imgutils import imshow
2
3 img3 = cv2.cvtColor(img, cv2.COLOR_RGB2GRAY)
4
5 plt.figure(figsize=(20,10))
ImportError: cannot import name 'imshow'
I am working on a Mac OS X 10.11, with a anaconda environment, python 3.5.
I have search the web to the imgutils module and have not a module, which have a imshow function.
Any suggestions?
Update
from cv2 import imshow
img3 = cv2.cvtColor(img, cv2.COLOR_RGB2GRAY)
plt.figure(figsize=(20,10))
plt.subplot(1,2,1); imshow(img)
plt.subplot(1,2,2); imshow(img3)
Traceback
---------------------------------------------------------------------------
TypeError Traceback (most recent call last)
<ipython-input-13-d01b4c235975> in <module>
5 plt.figure(figsize=(20,10))
6
----> 7 plt.subplot(1,2,1); imshow(img)
8 plt.subplot(1,2,2); imshow(img3)
TypeError: Required argument 'mat' (pos 2) not found

imgutils does not seem to contain an imshow attribute (and therefore definitely not a function). It does not contain an imshow submodule, nor does it imports an imshow function in the __init__.py file: it basically reimports elements from the submodules like, but a fast search does not yield an imshow function.
You probably wan to use the imshow from the matplotlib.pyplot module, so you should replace:
from imgutils import imshow
with:
from matplotlib.pyplot import imshow
This then imports the cv2.imshow [pyplot-doc] function.

shape_predictor in dlib module ArgumentError when using relative paths

I have come across a strange error when using dlib.shape_predictor function.
This is my code:
import sys
import dlib
from skimage import io
import matplotlib.pyplot as plt
import os
predictor_model = os.path.join(os.path.dirname(__file__),"Models","shape_predictor_68_face_landmarks.dat")
# Take the image file name from the command line
file_name = "/home/matt/Programming/Python/Face_detection/Images/wedding_photo.jpg"
# Test if they are equivalent
print predictor_model == "/home/matt/Programming/Python/Face_detection/Models/shape_predictor_68_face_landmarks.dat"
predictor_model = "/home/matt/Programming/Python/Face_detection/Models/shape_predictor_68_face_landmarks.dat"
# Create a HOG face detector using the built-in dlib class
face_detector = dlib.get_frontal_face_detector()
face_pose_predictor = dlib.shape_predictor(predictor_model)
If I use the predictor model as defined through relative path using os then I get an error:
ArgumentError: Python argument types in
shape_predictor.__init__(shape_predictor, unicode)
did not match C++ signature:
__init__(boost::python::api::object, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >)
__init__(_object*)
If I hardcode the path as defined above the script runs without a problem. Any ideas what may have gone wrong?