[Python] How can I write multi-line code at the Python REPL (in a terminal window)?

Suppose I run Python from a terminal window and get the REPL prompt:

python


Output:

Python 2.7.10 (default, Jul 30 2016, 19:40:32)
[GCC 4.2.1 Compatible Apple LLVM 8.0.0 (clang-800.0.34)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>>


I want to input some code like:

i = 0

while i < 10:
i += 1
print i


How do I actually type the newlines and indent the code?

I tried using Control+Enter, Shift+Enter, and Command+Enter; none of them worked. The code does not indent:

>>> while i < 10:
... print i
File "<stdin>", line 2
print i
^
IndentationError: expected an indented block

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