- Single line comment
# This is a comment
- Multi-Line comment
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"""```
3. Exponentiation
```eggs = 10 ** 2 #10 to the power of 2, eggs = 100```
4. String index
```fifth_letter = "MONTY"[4] #fifth_letter = "Y"```
5. lower()
parrot = "Norwegian Blue"
parrot.lower()
print parrot.lower() #norwegian blue
print parrot #Norwegian Blue
6. str()
``` pi = 3.14
print str(pi)