Final answer:
To read a specific portion of a file in Python, use file handling methods such as 'open', 'seek', and 'read' to open the file and move the pointer to a desired location before reading a specified number of bytes.
Step-by-step explanation:
To read a specific portion of a file in Python, you can use the file handling features provided by Python. The built-in open() function is used to open a file, and then you can read a specific portion of it using methods like read(), readline(), or readlines() along with file 'seeking' to move the pointer to a specific position.
Example:
If you want to read a portion starting at a specific byte:
f = open('example.txt', 'r')
f.seek(50) # Move the pointer to the 50th byte
portion = f.read(100) # Read the next 100 bytes
f.close()
If the file is larger and you want efficiency, consider using a buffer.