How to convert string to binary in Python
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Strings are an array of Unicode code characters.
Binary is a base-2 number system consisting of 0’s and 1’s that computers understand. The computer sees strings in binary format, i.e., ‘H’=1001000.
The string, as seen by the computer, is a binary number that is an ASCCI value( Decimal number) of the string converted to binary.
String to binary
To convert a string to binary, we first l) using the ord(_string) function. This function gives the ASCII value of the string (i.e., ord(H) = 72 , ord(e) = 101). Then, from the list of ASCII values we can convert them to binary using bin(_integer). Next, we can append these binary values to a list (m) so that m now consists of the binary numbers from the strings given and can be returned or printed.
import mathdef toBinary(a):l,m=[],[]for i in a:l.append(ord(i))for i in l:m.append(int(bin(i)[2:]))return mprint("''Hello world'' in binary is ")print(toBinary("Hello world"))
Binary to string
In order to pass a list of binary numbers to the function, we first convert the individual numbers to ASCII value by binary to decimal (i.e., 1001000 = 72 , 1100101 = 101).
72 and 101 are ASCII values.
k=int(math.log10(i))+1 gives number of digits in a given number i. These ASCII values are then l, and the list of ASCII values is converted to a string with the chr(number) function (i.e., chr(72)=H , chr(101)=e).
Finally, the string is m) and is returned.
These functions can be now used to convert string to binary and vice-versa.
import mathdef toString(a):l=[]m=""for i in a:b=0c=0k=int(math.log10(i))+1for j in range(k):b=((i%10)*(2**j))i=i//10c=c+bl.append(c)for x in l:m=m+chr(x)return mprint(" \n ''[1001000, 1100101, 1101100, 1101100, 1101111,]'' in string is ")print(toString([1001000, 1100101, 1101100, 1101100, 1101111,]))
