Binary files in Python

a. Write a four-byte, signed, big-endian integer containing the index of a chunk in a strings file. The desired data is stored at index 4.

b. Write a four-byte signed, big-endian integer containing the index of the next chunk for a string. It will contain a value of -1 if it is the last chunk in the string.

c. Write 15 bytes, containing the bytes in the ascii representation of the ID. If the ID is shorter than 15 bytes, the value must be stored at the beginning of this 15-byte field, and the remaining bytes should be zero.