I was programming in python and I am stuck with making a binary file

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So I want to make a binary file in Python but it gives a error

TypeError: a bytes-like object is required, not 'str' Here is my code

with open('test.binary','wb') as f:
    f = f.write('Hello!')

Can anyone please help?

file-io binary python
1 Answers

If you open a file as binary, you have to encode strings as bytes:

with open('test.binary','wb') as f:
    f = f.write('Hello!'.encode())

Or use b as as prefix of your string:

with open('test.binary','wb') as f:
    f = f.write(b'Hello!')
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