Python: Converting a Text File to a Binary File

Question

We can convert any digital file into binary file.

I have a text file of 1MB,

I want to convert it to a binary string and see the output as a binary number and th

Answer 1

The "text file" mentioned seems to refer to ASCII file. (where each character takes up 8 bits of space).

2nd line "convert it to a binary string" could mean ASCII representation of the text file, giving a sequences of bytes to be "output as a binary number" (similar to public key cryptography where text is converted to a number before encryption) eg.

text = 'ABC '
for x in text:
  print(format(ord(x), '08b'), end='')

would give binary (number) string: 01000001010000100100001100100000
which in decimal is: 1094861600

The 3rd line would mean to (byte) sequence a binary number & display the equivalent ASCII characters (for each 8-bit sequence) eg. 0x41 to be replaced with 'A' (as output) (The assumption here would be that each number would map to a printable ASCII ie. text character, and the given binary number has a multiple of 8 digits).

eg. To reverse (convert binary number to text):

binary = "01000001010000100100001100100001"
#number of characters in text
num = len(binary)/8 

for x in range(int(num)):
  start = x*8
  end = (x+1)*8
  print (chr(int(str(binary[start:end]),2)), end='')
print()

would give the text: ABC!

For a 1MB text file, you'd split the text string into chunks your machine can handle eg. 32 bits (before converting)

Tested in Python IDE