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Which of the following is not a valid mode to open a file?

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+1 vote
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in Python by (86.8k points)
Which of the following is not a valid mode to open a file?

(a) ab

(b) rw

(c) r+

(d) w+

I got this question by my school principal while I was bunking the class.

I need to ask this question from Files topic in section Regular Expressions and Files of Python

1 Answer

+1 vote
by (452k points)
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Best answer
The correct option is (b) rw

Best explanation: Use r+, w+ or a+ to perform both read and write operations using a single file object.

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