CODEWITHSUNDEEP
pythonarraysstringtype-conversionbyte
Marcus F
Marcus F

Reputation: 535

Python bytearray inside string problems

I have a function to convert bytearrays into bytes:

def dehex(d):
        return bytes(bytearray(d))

test = dehex([0xe7,0xcd,0xb0,0xa2])

this works perfectly fine

However

I have a few saved bytearrays like the one above inside a txt file using pickle, that looks like this:

0xe7,0xcd,0xb0,0xa2

and i want to be able to load them from the txt file, the problem arises if i read the file it returns a string which doesn't work with my dehex function. it is like it gets interpreted as such:

dehex(["0xe7,0xcd,0xb0,0xa2"])

how would i make this work?

Upvotes: 0

Views: 185

Answers (1)

fountainhead
fountainhead

Reputation: 3722

Perhaps this will help:

my_str = "0xe7,0xcd,0xb0,0xa2" # String read from file.

my_bytes_list = [bytes.fromhex(c[2:]) for c in my_str.split(",")]

result = [dehex(bytes.fromhex(c[2:])) for c in my_str.split(",")]

print (result)

Output:

[b'\xe7', b'\xcd', b'\xb0', b'\xa2']

Upvotes: 1

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