readp() function of the os module in Python

Overview:

The function os.pread() reads specified number of bytes or less starting from a specified position at a file.
It returns an empty bytes object when end of file is reached.

Example:

# Example Python program that reads
# from a specific position on a file
# using the function os.pread()
import os

# Open the file that has the text
# of the song "row row row your boat..."
flags    = os.O_RDONLY
mode    = 0o744
fd        = os.open("/ex/RowYourBoat.txt", flags, mode)

# Read the whole line that starts with Merrily
readFrom = 47
bytesCount = 34

bytesRead = os.pread(fd, bytesCount, readFrom)

# Print the read bytes
print(bytesRead)

Output:

b'Merrily merrily, merrily, merrily\n'

Readp() function of the os module in Python

Overview:

Example:

Output: