What's the Difference Between Python's `w`, `a`, `w `, `a `, and `r ` File Open Modes?

Understanding Open Modes in Python's Built-In Open Function

The built-in open function in Python provides a range of options to open files with specific permissions. Among these options are the modes w, a, w , a , and r , each with its unique purpose.

Distinction between modes w, a, w , a and r

The modes inherited from fopen define file access as follows:

• w (Writing): Opens the file for writing and deletes all existing content. The stream cursor is at the beginning of the file.
• w (Writing and Reading): Opens the file for both writing and reading. The file will be emptied if it exists. The stream cursor is at the beginning of the file.
• a (Appending): Opens the file for appending. The file will be created if it does not exist. The stream cursor is at the end of the file.
• a (Appending and Reading): Opens the file for both appending and reading. The file will be created if it does not exist. The stream cursor is at the end of the file.
• r (Reading and Writing): Opens the file for both reading and writing. The stream cursor is at the beginning of the file.

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