8.4 Expression input

There are two forms of expression input. Both ignore leading whitespace. The string argument to eval() must have the following form:

eval_input:     expression_list NEWLINE*

The input line read by input() must have the following form:

input_input:    expression_list NEWLINE

Note: to read `raw' input line without interpretation, you can use the built-in function raw_input() or the readline() method of file objects.