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No module named 'cv2'

asked 2019-12-15 02:29:25 -0500

Fahad Ahmed gravatar image

updated 2019-12-15 03:33:14 -0500

LBerger gravatar image

I have install opencv using pip install opencv-python ,it install but when i try to run code error pops up "no module named'cv2'" The code is

import cv2
from import TFNet
import numpy as np
import time

option= {
    'threshold': 0.13,

tfnet = TFNet(option)
colors = [tuple(255 * np.random.rand(3)) for _ in range(10)]

capture = cv2.VideoCapture('me.mp4')
capture.set(cv2.CAP_PROP_FRAME_WIDTH, 512)
capture.set(cv2.CAP_PROP_FRAME_HEIGHT, 512)

while True:
    stime = time.time()
    ret, frame =
    if ret:
        results = tfnet.return_predict(frame)
        for color, result in zip(colors, results):
            tl = (result['topleft']['x'], result['topleft']['y'])
            br = (result['bottomright']['x'], result['bottomright']['y'])
            label = result['label']
            confidence = result['confidence']
            text = '{}: {:.0f}%'.format(label, confidence * 100)
            frame = cv2.rectangle(frame, tl, br, color, 5)
            frame = cv2.putText(
                frame, text, tl, cv2.FONT_HERSHEY_COMPLEX, 1, (0, 0, 0), 2)
        cv2.imshow('frame', frame)
        print('FPS {:.1f}'.format(1 / (time.time() - stime)))
    if cv2.waitKey(1) & 0xFF == ord('q'):


The error is

RESTART: C:\Users\Raja kashif\Desktop\project\darkflow-master\video Traceback (most recent call last): File "C:\Users\Raja kashif\Desktop\project\darkflow-master\video", line 1, in <module> import cv2 ModuleNotFoundError: No module named 'cv2'

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Ist seems as of the only line of code relevant is the first one.

Do you have multiple python versions installed? Are you using a virtualenv/conda or so?

bong0 gravatar imagebong0 ( 2019-12-15 03:09:16 -0500 )edit

@bong0 that's not really an answer. can you post as a comment?

LBerger gravatar imageLBerger ( 2019-12-15 03:34:23 -0500 )edit

@bong0. You already got OpenCV working your file.Actually, what wrong is that?

supra56 gravatar imagesupra56 ( 2019-12-15 08:16:16 -0500 )edit

@supra56 please read carrefully it is Fahad Ahmed's question and not bong0's

LBerger gravatar imageLBerger ( 2019-12-15 09:50:04 -0500 )edit

@LBerger. Apologized. I made a mistaken.

supra56 gravatar imagesupra56 ( 2019-12-15 10:34:09 -0500 )edit

@LBerger thanks for fixing this and sorry. I wanted to add this as a comment but didn't see any option to do so on Safari mobile (i'm now using the desktop browser)

bong0 gravatar imagebong0 ( 2019-12-15 11:11:15 -0500 )edit

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answered 2019-12-17 01:35:22 -0500

arafat gravatar image

Did you check your environment variable? does your program gets the python location? If using pip list gives you opencv-python package name then the program may not be able to find your python folder location.

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Asked: 2019-12-15 02:29:25 -0500

Seen: 6,730 times

Last updated: Dec 17 '19