It will create a new file if one with the same name doesn't exist.
Buffering is useful when you don't know the size of file you are working with, if the file size is greater than computer memory then processing unit will not function properly. In the case of a text file, this will be the number of characters returned.
It stores data as key:value pairs. A new file is created if one with the same name doesn't exist. Come, you will enjoy the Dark Side. Commercial use on a website will incur a license fee for each image used - details on request.
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Purpose of this website This is a sample program, class demonstration or answer from a training course. Note that the binary mode doesn't take an encoding argument.