Which of the following option is true?fp.seek(10, 1)(1) Move file poin...
This question is related to the Python programming language and file handling. The correct answer is option 'D', which states that the `fp.seek(10, 1)` command moves the file pointer ten characters ahead from the current position.
Here is a detailed explanation:
1. Understanding the `seek()` function:
The `seek()` function in Python is used to change the position of the file pointer within a file. It takes two arguments: the offset and the reference point. The offset specifies the number of bytes to be moved, and the reference point determines from where the offset should be calculated.
2. The given command: `fp.seek(10, 1)`
The `fp.seek(10, 1)` command indicates that the file pointer `fp` needs to be moved ten characters ahead from the current position.
3. Explanation of the options:
a) Option 1: "Move file pointer ten characters behind from the current position."
This option is incorrect because the command `fp.seek(10, 1)` moves the file pointer ahead, not behind.
b) Option 2: "Move file pointer ten characters ahead from the current position."
This option is incorrect because it is essentially the same as the correct answer, option 'D'. Therefore, the correct answer cannot be option 'D'.
c) Option 3: "Move file pointer ten characters ahead from the beginning of a file."
This option is incorrect because the command `fp.seek(10, 1)` moves the file pointer from the current position, not from the beginning of the file.
d) Option 4: "Move file pointer ten characters behind ahead from the end of a file."
This option is incorrect because it does not accurately describe the functionality of the given command.
4. Final conclusion:
Considering the explanations above, it is evident that option 'D' is the correct answer. The command `fp.seek(10, 1)` moves the file pointer ten characters ahead from the current position.
Which of the following option is true?fp.seek(10, 1)(1) Move file poin...
The seek() method :
This method is used to position the file object at a particular position in a file.
The syntax of seek() is:
file_object.seek(offset [ , reference_point])
In the above syntax, offset is the number of bytes by which the file object is to be moved. reference_point indicates the starting position of the file object. That is, with reference to which position, the offset has to be counted.
- It can have any of the following values:
- 0 - beginning of the file
- 1 - current position of the file
- 2 - end of file
- By default, the value of reference_point is 0,
- i.e. the offset is counted from the beginning of the file.
Explanation:
The given sentences,
fp.seek(10, 1)
Here fp is the file object.
- fp.seek(10, 1) Move file pointer ten characters ahead from the current position.
- fp.seek(10, 0) Move file pointer ten characters ahead from the beginning of the file.
- fp.seek(10, 2) Move file pointer ten characters ahead from the end of the file.
Hence the correct answer is to Move the file pointer ten characters ahead from the current position.
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