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Intro to Programming and Data Science (Fall 2024)/Day 1 Tutorial
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===Quotes=== We've been using double quotes around our strings, but you can use either double or single quotes: <syntaxhighlight lang="python"> 'Hello' "Hello" </syntaxhighlight> Like with spacing above, use whichever quotes make the most sense for you, but be consistent. You do have to be careful about using quotes inside of strings: 'I'm a happy camper' This gives us another '''traceback''', for a new kind of error, a <code>SyntaxError</code>. When Python looks at that expression, it sees the string 'I' and then <code>m a happy camper'</code> which it doesn't understand -- it's not 'valid' Python. Those letters aren't variables (we haven't assigned them to anything), and that trailing quote isn't balanced. So it raises a <code>SyntaxError</code>. We can use double quotes to avoid this problem: "I'm a happy camper" One fun thing about strings in Python is that you can multiply them: <syntaxhighlight lang="python"> "A" * 40</syntaxhighlight> <syntaxhighlight lang="python"> "ABC" * 12</syntaxhighlight> <syntaxhighlight lang="python"> h = "Happy" b = "Birthday" (h + b) * 10 </syntaxhighlight>
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