Expression input

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

eval_input:     condition_list NEWLINE*

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

input_input:    condition_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. file raw_index readline