Скачать или смотреть Python decode() mangles bytes object (either returns empty string, or only last line of text)

Hello everyone! I hope this video has helped solve your questions and issues. This video is shared because a solution has been found for the question/problem. I create videos for questions that have solutions. If you have any other issues, feel free to reach out to me on Instagram:   / ky.emrah  

Below, you can find the text related to the question/problem. In the video, the question will be presented first, followed by the answers. If the video moves too fast, feel free to pause and review the answers. If you need more detailed information, you can find the necessary sources and links at the bottom of this description. I hope this video has been helpful, and even if it doesn't directly solve your problem, it will guide you to the source of the solution. I'd appreciate it if you like the video and subscribe to my channel!Python decode() mangles bytes object (either returns empty string, or only last line of text)

For the life of me, I can't figure out what's happening here...
I'm capturing the output of a command line utility via subprocess.popen(), and processing the stdout line by line via process.stdout.readline() (which returns a bytes object). I want to convert each stdout line to a string, but when I convert it with output.decode(), it either (1) returns an empty string (even though there is text in the bytes object), or (2) only returns the last line in the bytes object.
subprocess.popen()
process.stdout.readline()
output.decode()
I have looked through the python docs for Code.decode, but can't figure out why this is happening or how to remedy it.
python docs for Code.decode
Below is a snippet of the code I'm using, and some example outputs.
Code snippet:
Code snippet:
output = process.stdout.readline() # returns a bytes object
if output:
print(str(output))
print(output.decode())

output = process.stdout.readline() # returns a bytes object
if output:
print(str(output))
print(output.decode())

Example 1 (only last line being returned by decode()):
Example 1 (only last line being returned by decode()):
first print statement (the bytes object):
first print statement (the bytes object):
b'0M Scan C:\\Users\\Me\\Documents\\\r \r24 folders, 8 files, 65 bytes (1 KiB)'

b'0M Scan C:\\Users\\Me\\Documents\\\r \r24 folders, 8 files, 65 bytes (1 KiB)'

second print statement (result of decode()):
second print statement (result of decode()):
24 folders, 8 files, 65 bytes (1 KiB)
24 folders, 8 files, 65 bytes (1 KiB)
(I would expect it to be this:)
(I would expect it to be this:)
Scan C:\\Users\\Me\\Documents\\
24 folders, 8 files, 65 bytes (1 KiB)

Scan C:\\Users\\Me\\Documents\\
24 folders, 8 files, 65 bytes (1 KiB)

Example 2 (decode() returning empty string):
Example 2 (decode() returning empty string):
first print statement (the bytes object):
first print statement (the bytes object):
b'0%'
b'0%'
second print statement (result of decode()):
second print statement (result of decode()):
"" (an empty string)
(I would expect it to be this:)
(I would expect it to be this:)
0%
0%
I have tried output.decode('utf-8') but the same result. output is NOT being accessed/modified elsewhere. Why might this be happening? Could this be because I'm on a Windows machine?
output.decode('utf-8')
output


Tags: python,python-3.x,decodeSource of the question:
https://stackoverflow.com/questions/7...

Question and source license information:
https://meta.stackexchange.com/help/l...
https://stackoverflow.com/