read function in python

1Syntax: file.read(fd, n)
2
3Parameter:
4fd: A file descriptor representing the file to be read.
5n: Optional. An integer value denoting the number of bytes to be read from the file associated with the given file descriptor fd.
6   The number of bytes to return. Default -1, which means the whole file.
7
8Return Type: This method returns a bytestring which represents the bytes read from the file associated with the file descriptor fd.