How to convert <class bytes> to array or string in python?

Question

subprocess.popen is returning the output as class bytes as below

b'Caption FreeSpace Size \r\r\nC: 807194624
63869808640 \r\r\nD: \r\r\nY:
216847310848 2748779065344 \r\r\n\r\r\n'

How to remove all occurance of \r\r\n Or how can I convert this to python string or array

bisht · Accepted Answer · 2018-02-15 05:17:15Z

2

my_str = "hello world"

Converting string to bytes

my_str_as_bytes = str.encode(my_str)

Converting bytes to string

my_decoded_str = my_str_as_bytes.decode()

edited Feb 15, 2018 at 5:17

user1773603

answered Feb 15, 2018 at 4:53

bisht

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Unnamed · Accepted Answer · 2019-01-29 16:50:15Z

2

You can print it by:

print(b'Caption FreeSpace ... \r\r\n\r\r\n'.decode())

Result:

Caption FreeSpace ...

answered Jan 29, 2019 at 16:50

Unnamed

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1 Comment

Shrm Over a year ago

Also with string = XXX.decode() you can convert it to string and treat it as a string, such as split or anything

DAXaholic · Accepted Answer · 2016-07-26 11:01:20Z

1

You can remove the characters with translate like so

b'Caption FreeSpace ... \r\r\n\r\r\n'.translate(None, b'\r\n')

which results in

b'Caption FreeSpace Size C: 807194624 63869808640 D: Y: 216847310848 2748779065344 '

If you know the encoding of the returned data you may want to use decode which will give you a string for further processing.
For example, assumed it is encoded in utf-8, you can just call decode with its default value and directly call split on it to split by white-space characters to get an array like this

b'Caption FreeSpace ... \r\r\n\r\r\n'.translate(None, b'\r\n').decode().split()

Result

['Caption', 'FreeSpace', 'Size', 'C:', '807194624', '63869808640', 'D:', 'Y:', '216847310848', '2748779065344']

answered Jul 26, 2016 at 11:01

DAXaholic

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2 Comments

Dwarika Nath Over a year ago

Thanks for info. When the type is < class list>.then how can i replace all \r\n. Because when i apply decode it says .testresult is <class 'list'> type Encountered exception during remote execution print (testresult.decode()) AttributeError: 'NoneType' object has no attribute 'decode'

DAXaholic Over a year ago

Sry for late reply ... Can you show a bit more of your code so that I can see how testresult is being filled/set?

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