9

For the following python codes:

pt  = bytearray.fromhex('32 43 f6 a8 88 5a 30 8d 31 31 98 a2 e0 37 07 34')
state = bytearray(pt)

If I use:

print state

It gives out 2Cö¨ˆZ0?11˜¢à74

Then how to recover the content in the bytearray? For example, to put them in a list like [].

chrisTina
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4 Answers4

15

You can convert between a bytearray and list using the python built in functions of the same name.

>>> x=[0,1,2,3,4]      # create a list 
>>> print x
[0, 1, 2, 3, 4]
>>> y = bytearray(x)   # convert the list to a bytearray    
>>> print y
(garbled binary)               <-- prints UGLY!
>>> z = list(y)        # convert the bytearray back into a list
>>> print z
[0, 1, 2, 3, 4]
D M Lowe
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7

Indexing a bytearray results in unsigned bytes.

>>> pt[0]
50
>>> pt[5]
90
Ignacio Vazquez-Abrams
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1

You can make your own method with simple string methods:

string = '32 43 f6 a8 88 5a 30 8d 31 31 98 a2 e0 37 07 34'
number = [int(i, 16) for i in string.split()]

Now you have a list of the converted numbers as you wanted.

Malik Brahimi
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0

I was looking for an answer to 'How may you convert binary into decimal values?' and found this question, so I want to complete Malik Brahimi's answer as much as I can.

Basically, what you can do is to create a list of ones and then iterate through them in order to create decimal list:

b_list = ['0', '1', '10', '11', '100', '101'] # Note, that values of list are strings
res = [int(n, 2) for n in b_list] # Convert from base two to base ten
print(res)

# Output:
# User@DESKTOP-CVQ282P MINGW64 ~/desktop
# $ python backpool.py
# [0, 1, 2, 3, 4, 5]

You may note, that we can use this way to convert values with different bases: binary, hex and so on.

Vlad Mikheenko
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