CODEWITHSUNDEEP
pythonpython-3.x
S Andrew
S Andrew

Reputation: 7258

How to extract substring from a 'binary string' in python3

I have a string b'helloworld\n'. I want to extract helloworld from it. For this, I am doing

print(string[1:-2])

But on output I am getting b'elloworl'.

How can I extraxt helloworld.

Thanks

Upvotes: 2

Views: 13282

Answers (2)

Alperen
Alperen

Reputation: 4612

From this link, to change binary string to normal string use this:

>>> b'helloworld\n'.decode('ascii') # you can use utf8 or something else, it is up to you
'helloworld\n'

To delete whitespaces use strip():

>>> b'helloworld\n'.decode('ascii').strip()
'helloworld'

Upvotes: 0

Antithesis
Antithesis

Reputation: 181

print(s[0:-1])

Indexes are zero based so the h is at index zero. The ending index is non-inclusive, so go one extra.

If you want to get rid of the b you have to decode the bytes object.

print(s.decode('utf-8')[0:-1])

Upvotes: 5

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