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Which of the following functions returns the current position of the file pointer in a file?
a) seek( )
b) tell( )
c) read( )
d) readline( )
Answer:
Answer by student
b) tell( )
Detailed answer by teachoo
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File pointer functions are methods that manipulate the position of the file pointer, which is a cursor that indicates where the next read or write operation will take place in a file. There are two main file pointer functions in Python: seek( ) and tell( ).
Now, let’s go through each of the options and see why they are correct or incorrect.
a) seek( ): This option is incorrect because seek( ) is a function that sets the position of the file pointer to a given specific position.
b) tell( ): This option is correct because tell( ) is a function that returns the current position of the file pointer in a file . It takes no parameters and returns an integer value that represents the number of bytes from the start of the file.
c) read( ): This option is incorrect because read( ) is a function that reads data from a file and returns it as a string or bytes object.
d) readline( ): This option is incorrect because readline( ) is a function that reads one line from a file and returns it as a string or bytes object.
So, the correct answer is b) tell( ).
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