Computer Science (Python) > computational-thinking-and-programming-2 > Data File Handling
(i) Write a point of difference between append (a) and write (w) modes in a text file. (ii) Write a program in Python that defines and calls user defined functions: Add_Teacher(): Inserts record to Teacher.csv as [Tid, Tname, desig]. Search_Teacher(): Displays records of all PGT teachers.
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