Yurttas/PL/SL/python/docs/core-python-programming/doc/20/ref/interactive.html
8.3 Interactive input
Input in interactive mode is parsed using the following grammar:
interactive_input: [stmt_list] NEWLINE | compound_stmt NEWLINE
Note that a (top-level) compound statement must be followed by a blank line in interactive mode; this is needed to help the parser detect the end of the input.
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