Understanding Python Print and Errors

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Question:

What does this program print? Pay close attention to spaces.

print("Hello", "World", "!")

Write three versions of the hello.py program that have different compile-time errors.

Answer:

The program you provided:

print("Hello", "World", "!")

will print:

Hello World !

Notice that there are spaces between the words "Hello", "World", and the exclamation mark "!" because the print function in Python separates its arguments with a space by default.

Now, here are three versions of the hello.py program that contain different compile-time errors:

Version 1: Syntax Error

print("Hello" "World" "!")

Error: This will raise a SyntaxError because the strings are not properly separated by commas.

Version 2: Missing Parentheses (Python 3)

print "Hello", "World", "!"

Error: This will raise a SyntaxError in Python 3 because the print statement requires parentheses.

Version 3: Invalid Variable Name

1st_variable = "Hello"
print(1st_variable, "World", "!")

Error: This will raise a SyntaxError because variable names cannot start with a digit.

These examples illustrate different types of compile-time errors that can occur in Python.