Problem with reading a path

[gkiller007]

So the files you're trying to open are in C:\Users\gonca\Anaconda3\lib\site-packages\Desktop\cityscape and C:\Users\gonca\Anaconda3\lib\site-packages\Desktop\landscape, correct? If not, then I'd suggest either using os.chdir() to change where you think you are to match where your file actually is, or using absolute paths to reference your files/folders. Here's an example of using os.chdir():

1	import os import pathlib current_file = pathlib.Path(__file__) current_location = current_file.parent.absolute() os.chdir(current_location) # references from here on out to relative paths will be relative to wherever this file exists print(os.getcwd())

the files that i'm tring to read are at

C:\Users\gonca\Desktop\landscape
and
C:\Users\gonca\Desktop\cityscape

I've tried to put that address but i've got another error:

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error                                     Traceback (most recent call last) <ipython-input-18-1ea0691ca06e> in <module>       1 dir1 = os.listdir(r'C:/Users/gonca/Desktop/cityscape')       2 dir2 = os.listdir(r'C:/Users/gonca/Desktop/landscape') ----> 3 name,img = uploadImg(dir1, dir2)    <ipython-input-17-831c56f87f59> in uploadImg(dir1, dir2)      10      11             orig = cv2.imread(r'C:/Users/gonca/Desktop/landscape' + file) ---> 12             orig = cv2.cvtColor(orig, cv2.COLOR_BGR2RGB)      13             cityscape = cv2.resize(orig,(512,512))      14             #cityscape_original.append(cityscape)    error: OpenCV(3.4.2) c:\miniconda3\conda-bld\opencv-suite_1534379934306\work\modules\imgproc\src\color.hpp:253: error: (-215:Assertion failed) VScn::contains(scn) && VDcn::contains(dcn) && VDepth::contains(depth) in function 'cv::CvtHelper<struct cv::Set<3,4,-1>,struct cv::Set<3,4,-1>,struct cv::Set<0,2,5>,2>::CvtHelper'

i've put the address like this:

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from sklearn.decomposition import NMF from matplotlib import pyplot as plt import cv2 import numpy as np import os import sys import statistics       ## upload imgs e returns names e imgs def uploadImg(dir1,dir2):     cityscape_original = []     landscape_original = []     nameList = [[] for _ in range(512)]     imgList = [[] for _ in range(512)]     for file in os.listdir(r'C:/Users/gonca/Desktop/landscape'):         if file.endswith(".jpg"):             nameList[0].append(file)                            orig = cv2.imread(r'C:/Users/gonca/Desktop/landscape' + file)             orig = cv2.cvtColor(orig, cv2.COLOR_BGR2RGB)             cityscape = cv2.resize(orig,(512,512))             #cityscape_original.append(cityscape)             imgList[0].append(cityscape)     for file in os.listdir(r'C:/Users/gonca/Desktop/cityscape'):         if file.endswith(".jpg"):             nameList[1].append(file)             orig = cv2.imread(r'C:/Users/gonca/Desktop/cityscape' + file)             orig = cv2.cvtColor(orig, cv2.COLOR_BGR2RGB)                landscape = cv2.resize(orig,(512,512))             #landscape_original.append(landscape)             imgList[1].append(landscape)     return nameList,imgList       dir1 = os.listdir(r'C:/Users/gonca/Desktop/cityscape') dir2 = os.listdir(r'C:/Users/gonca/Desktop/landscape') name,img = uploadImg(dir1, dir2)

[Axel_Erfurt]

add /

C:/Users/gonca/Desktop/landscape/' + file

C:/Users/gonca/Desktop/cityscape/' + file

[gkiller007]

add / C:/Users/gonca/Desktop/landscape/' + file C:/Users/gonca/Desktop/cityscape/' + file

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dir1 = os.listdir('C:/Users/gonca/Desktop/cityscape/' + file) dir2 = os.listdir('C:/Users/gonca/Desktop/landscape/' + file) name,img = uploadImg(dir1, dir2)

it says:

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NameError                                 Traceback (most recent call last) <ipython-input-6-6272acfbcf93> in <module> ----> 1 dir1 = os.listdir('C:/Users/gonca/Desktop/cityscape/' + file)       2 dir2 = os.listdir('C:/Users/gonca/Desktop/landscape/' + file)       3 name,img = uploadImg(dir1, dir2)   NameError: name 'os' is not defined

[Axel_Erfurt]

add

import os

on top

[gkiller007]

add import os on top

I've already put that import since i started

[nilamo]

Ok but the error is saying the module was never imported. So if it was imported, please share all of your code as it currently exists.

[gkiller007]

Ok but the error is saying the module was never imported. So if it was imported, please share all of your code as it currently exists.

this is the complete code

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from sklearn.decomposition import NMF from matplotlib import pyplot as plt import cv2 import numpy as np import os import sys import statistics     def uploadImg(dir1,dir2):     cityscape_original = []     landscape_original = []     nameList = [[] for _ in range(512)]     imgList = [[] for _ in range(512)]     for file in os.listdir('C:/Users/gonca/Desktop/landscape/'):         if file.endswith(".jpg"):             nameList[0].append(file)                           orig = cv2.imread('C:/Users/gonca/Desktop/landscape/' + file)             orig = cv2.cvtColor(orig, cv2.COLOR_BGR2RGB)             cityscape = cv2.resize(orig,(512,512))             #cityscape_original.append(cityscape)             imgList[0].append(cityscape)     for file in os.listdir('Desktop/cityscape'):         if file.endswith(".jpg"):             nameList[1].append(file)             orig = cv2.imread('C:/Users/gonca/Desktop/cityscape/')             orig = cv2.cvtColor(orig, cv2.COLOR_BGR2RGB)               landscape = cv2.resize(orig,(512,512))             #landscape_original.append(landscape)             imgList[1].append(landscape)     return nameList,imgList   dir1 = os.listdir('C:/Users/gonca/Desktop/cityscape/' + file) dir2 = os.listdir('C:/Users/gonca/Desktop/landscape/' + file) name,img = uploadImg(dir1, dir2)

and the error is:

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NameError                                 Traceback (most recent call last) <ipython-input-9-5b073e198060> in <module>       1 ----> 2 dir1 = os.listdir('C:/Users/gonca/Desktop/cityscape/' + file)       3 dir2 = os.listdir('C:/Users/gonca/Desktop/landscape/' + file)       4 name,img = uploadImg(dir1, dir2)   NameError: name 'file' is not defined

[ichabod801]

file is only defined in the function. It does not exist outside the function. You need to return it from the function to use it elsewhere.

Also, file is a really bad variable name. file is a built-in type in Python, and be assigning something else to it you lose the use of the built-in, as might other code that is expecting it.

[gkiller007]

file is only defined in the function. It does not exist outside the function. You need to return it from the function to use it elsewhere. Also, file is a really bad variable name. file is a built-in type in Python, and be assigning something else to it you lose the use of the built-in, as might other code that is expecting it.

Initialy i didin't have '+ file' it was an advice from Axel because i can't read the path

[snippsat]

Are you using Anaconda3 or miniconda?

Error:
error: OpenCV(3.4.2) c:\miniconda3\conda-bld\opencv-suite_1534379934306\...

The error comes from miniconda,but you have also have C:\Users\gonca\Anaconda3.
You know that Anaconda3(full version 1400+ packages) and miniconda3(0 packages have to install with conda or pip) are different standalone versions?

Also, file is a really bad variable name. file is a built-in type in Python

In Python 3 it's okay to use file,in python 2 it was not.

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# Python 2.7 >>> file <type 'file'>    # Python 3.7 >>> file Traceback (most recent call last):   File "<interactive input>", line 1, in <module> NameError: name 'file' is not defined

I have used file many times in Python 3,even if old habits sometime hit in and tells that's is wrong when it really is not