Python: How can i invert string "0110010"?

Question

How to convert strings containing only 0s and 1s in most efficient and elegant way?
Ex:

input:  "0110010"
output: "1001101"

Thanks in advance.

Asked By: Avo Asatryan

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Source

Answer 1

This piece of code works with strings, try it:

>>> from string import maketrans
>>>
>>> initial_string = "10101010100011010"
>>> converted_string = initial_string.translate(maketrans("10","01"))

>>> converted_string    # The result is
'01010101011100101'
>>>

Answered By: J Johnson

Answer 2

How to do this with either strings or binary literals.

Easy, use a bitwise operator. This is the proper way to do it, because it’s useful to understand how to use these operators in Python. If this is a task, this seems like the way whoever set the task wanted it to be done.

# Make binary literal (0b prefix)
b = 0b11001001
# And use the complement operator
print(~b)

#Or if you want to print out the binary, try
print(bin(~b))

Here are some examples:

>>> ~0b110011
-52
>>> bin(~0b110001)
'-0b110010'
>>> bin(~0b11000)
'-0b11001'

If your binary number is a string:

s = "101"
# bin(~int(s,2)) = "010"

Note, you might want to trim the first three characters off of the space if you want just the binary characters, e.g.

bin(~int(s,2))[3:]

Answered By: Jacob Garby

Answer 3

The simple way by use swapping:

st = "0110010"
st=st.replace("0","a")
st=st.replace("1","0")
st=st.replace("a","1")
print (st)

Answered By: Rohit-Pandey

Answer 4

''.join('1' if x == '0' else '0' for x in '0110010')

Answered By: RobertB

Python: How can i invert string "0110010"?

Question:

Answers:

How to do this with either strings or binary literals.