COMPSCI 1MD3 Lecture Notes - Lecture 15: Newline, Standard Streams, Empty String
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9 Apr 2018
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The [prompt] is optional, if it is included, it is printed to the screen. A line is read from the user and returned as a string. If the prompt is present, it is written to standard output. A line is read from standard input and returned as a string. Converts all objects with str to strings and prints them to the screen separated by sep and terminated by end print (1,2,3) or print(1,2,3,sep = "") or print(1,2,3, end = "\n\) Printing to the screen and reading from the user are modelled by special files called standard output (sys. stdout) and standard input (sys. stdin) In command-line s(cid:272)ripts, we (cid:272)an redire(cid:272)t standard input and standard output to files . Open the file for reading or writing to obtain a file handle. You can either read or write, but not both at the same time. Read or write lines to the file by referring to the file name.
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