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Problems Running Python Script - not being able to run script on windows 11 ubuntu wsl2

Time：02-16

Greetings

I am running the following code on python3 using Windows 11 WSL2

import sys
import json
import os

#os.system("pip install opencv-python")
#os.system("pip install numpy")
#os.system("pip install urllib3")
os.system("pip install PIL")
os.system("pip install pillow")
os.system("pip install urllib3")
os.system("pip install chardet")

import cv2
import numpy as np
import urllib.request
from PIL import Image


url1 = "https://pbs.twimg.com/profile_images/987617293306859520/T4aHjh5r_400x400.jpg"
url2 = "http://3.bp.blogspot.com/-JVIkYYRHoW0/Vp-aV0ALdUI/AAAAAAAADhc/huHp_gFx_b4/s1600/IMG_6572.JPG"

def convert_to_grayscale(pic1,pic2):
    gray_img1 = np.array(Image.open(pic1))
    gray_img2 = np.array(Image.open(pic2))
    gray1 = cv2.cvtColor(gray_img1,cv2.COLOR_RGB2GRAY)
    gray2 = cv2.cvtColor(gray_img2,cv2.COLOR_RGB2GRAY)
    return (gray_img1,gray_img2)
 
def url_to_image(url):
    data = urllib.request.urlopen(url)
    contents = data.read()
    return contents

if __name__ == '__main__':
    image1 = url_to_image(url1)
    image2 = url_to_image(url2)
    gray_pic1, gray_pic2 = convert_to_grayscale(image1,image2)
    cv2.imshow('Gray scaled image 1',gray_pic1)
    cv2.imshow('Gray scaled image 2',gray_pic2)
    cv2.waitKey()
    cv2.destroyAllWindows()

When I run this piece of code I get the following error:

This was my first error log:

Defaulting to user installation because normal site-packages is not writeable
ERROR: Could not find a version that satisfies the requirement PIL (from versions: none)
ERROR: No matching distribution found for PIL
/usr/lib/python3/dist-packages/requests/__init__.py:89: RequestsDependencyWarning: urllib3 (1.26.8) or chardet (3.0.4) doesn't match a supported version!
  warnings.warn("urllib3 ({}) or chardet ({}) doesn't match a supported "
Traceback (most recent call last):
  File "bruteForceOpenCV.py", line 34, in <module>
    gray_pic1, gray_pic2 = convert_to_grayscale(image1,image2)
  File "bruteForceOpenCV.py", line 20, in convert_to_grayscale
    gray_img1 = np.array(Image.open(pic1))
  File "/home/tmm88/.local/lib/python3.8/site-packages/PIL/Image.py", line 2953, in open
    fp = builtins.open(filename, "rb")
ValueError: embedded null byte

now, i am getting the following:

Defaulting to user installation because normal site-packages is not writeable
ERROR: Could not find a version that satisfies the requirement PIL (from versions: none)
ERROR: No matching distribution found for PIL
Defaulting to user installation because normal site-packages is not writeable
Requirement already satisfied: pillow in /home/tmm88/.local/lib/python3.8/site-packages (9.0.1)
Defaulting to user installation because normal site-packages is not writeable
Requirement already satisfied: urllib3 in /home/tmm88/.local/lib/python3.8/site-packages (1.26.8)
Defaulting to user installation because normal site-packages is not writeable
Requirement already satisfied: chardet in /usr/lib/python3/dist-packages (3.0.4)
/usr/lib/python3/dist-packages/requests/__init__.py:89: RequestsDependencyWarning: urllib3 (1.26.8) or chardet (3.0.4) doesn't match a supported version!
  warnings.warn("urllib3 ({}) or chardet ({}) doesn't match a supported "
Traceback (most recent call last):
  File "bruteForceOpenCV.py", line 37, in <module>
    gray_pic1, gray_pic2 = convert_to_grayscale(image1,image2)
  File "bruteForceOpenCV.py", line 23, in convert_to_grayscale
    gray_img1 = np.array(Image.open(pic1))
  File "/home/tmm88/.local/lib/python3.8/site-packages/PIL/Image.py", line 2953, in open
    fp = builtins.open(filename, "rb")
ValueError: embedded null byte

I am currently being able to:

  • make an http request for the images

I am not being able to:

  • convert the images to greyscale
  • bruteforce them and compare them with opencv

any help is appreciated

can someone please help me to fix this?

thank you so much
T.

CodePudding user response：

"No matching distribution found for PIL"

Did you install pillow?

$ pip install pillow
$ pip install urllib3
$ pip install chardet

After you did it, close terminal and try again.

If you don't know what packages you have installed, you must run:

$ pip list

or if you want it in a txt file...

$ pip list > mypackages.txt

Hope I helped you.

CodePudding user response：

pip list is currently returning the following:

Package                Version
---------------------- --------------------
async-generator        1.10
attrs                  19.3.0
Automat                0.8.0
beautifulsoup4         4.10.0
blinker                1.4
bs4                    0.0.1
certifi                2019.11.28
chardet                3.0.4
Click                  7.0
cloud-init             21.4
colorama               0.4.3
command-not-found      0.3
configobj              5.0.6
constantly             15.1.0
cryptography           2.8
dbus-python            1.2.16
distlib                0.3.4
distro                 1.4.0
distro-info            0.23ubuntu1
entrypoints            0.3
filelock               3.4.2
h11                    0.13.0
httplib2               0.14.0
hyperlink              19.0.0
idna                   2.8
importlib-metadata     1.5.0
incremental            16.10.1
Jinja2                 2.10.1
jsonpatch              1.22
jsonpointer            2.0
jsonschema             3.2.0
keyring                18.0.1
language-selector      0.1
launchpadlib           1.10.13
lazr.restfulclient     0.14.2
lazr.uri               1.0.3
MarkupSafe             1.1.0
more-itertools         4.2.0
MouseInfo              0.1.3
netifaces              0.10.4
numpy                  1.22.2
oauthlib               3.1.0
opencv-python          4.5.5.62
outcome                1.1.0
pexpect                4.6.0
Pillow                 9.0.1
pip                    22.0.3
pipenv                 2022.1.8
platformdirs           2.5.0
pyasn1                 0.4.2
pyasn1-modules         0.2.1
PyAutoGUI              0.9.53
PyGetWindow            0.0.9
PyGObject              3.36.0
PyHamcrest             1.9.0
PyJWT                  1.7.1
pymacaroons            0.13.0
PyMsgBox               1.0.9
PyNaCl                 1.3.0
pyOpenSSL              19.0.0
pyperclip              1.8.2
PyRect                 0.1.4
pyrsistent             0.15.5
PyScreeze              0.1.28
pyserial               3.4
python-apt             2.0.0 ubuntu0.20.4.6
python-debian          0.1.36ubuntu1
python3-xlib           0.15
pytweening             1.0.4
pyxattr                0.6.1
PyYAML                 5.3.1
requests               2.22.0
requests-unixsocket    0.2.0
SecretStorage          2.3.1
selenium               4.1.0
service-identity       18.1.0
setuptools             45.2.0
simplejson             3.16.0
six                    1.14.0
sniffio                1.2.0
sortedcontainers       2.4.0
sos                    4.2
soupsieve              2.3.1
ssh-import-id          5.10
systemd-python         234
trio                   0.19.0
trio-websocket         0.9.2
Twisted                18.9.0
ubuntu-advantage-tools 27.6
ufw                    0.36
unattended-upgrades    0.1
urllib3                1.26.8
virtualenv             20.13.1
virtualenv-clone       0.5.7
wadllib                1.3.3
wheel                  0.34.2
wsproto                1.0.0
youtube-dl             2020.3.24
zipp                   1.0.0
zope.interface         4.7.1

I still get this error while running the script:

Defaulting to user installation because normal site-packages is not writeable
ERROR: Could not find a version that satisfies the requirement PIL (from versions: none)
ERROR: No matching distribution found for PIL
Defaulting to user installation because normal site-packages is not writeable
Requirement already satisfied: pillow in /home/tmm88/.local/lib/python3.8/site-packages (9.0.1)
Defaulting to user installation because normal site-packages is not writeable
Requirement already satisfied: urllib3 in /home/tmm88/.local/lib/python3.8/site-packages (1.26.8)
Defaulting to user installation because normal site-packages is not writeable
Requirement already satisfied: chardet in /usr/lib/python3/dist-packages (3.0.4)
/usr/lib/python3/dist-packages/requests/__init__.py:89: RequestsDependencyWarning: urllib3 (1.26.8) or chardet (3.0.4) doesn't match a supported version!
  warnings.warn("urllib3 ({}) or chardet ({}) doesn't match a supported "
Traceback (most recent call last):
  File "bruteForceOpenCV.py", line 37, in <module>
    gray_pic1, gray_pic2 = convert_to_grayscale(image1,image2)
  File "bruteForceOpenCV.py", line 23, in convert_to_grayscale
    gray_img1 = np.array(Image.open(pic1))
  File "/home/tmm88/.local/lib/python3.8/site-packages/PIL/Image.py", line 2953, in open
    fp = builtins.open(filename, "rb")
ValueError: embedded null byte

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