invalid syntax: my code looks the same as that in the book : <pre><code>states = [
    'oregon': 'OR',
    'florida': 'FL',
    'california': 'CA',
    'new york': 'NY',
    'michigan': 'MI'
]
</code></pre>

<p>when I run code above, terminal always say:</p>

<pre><code>'oregon': 'OR',
        ^
SyntaxError: invalid syntax
</code></pre>

<p>But I just copy the code in a book, not exactly copy&amp;paste, but type them manually and they look the same. I don't know what's going wrong.
hope someone can help me with that. thanks!!</p>
