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Updated index.md to further explain functions (#22779)

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Naida Agić
2018-11-23 11:52:27 +01:00
committed by Huyen Nguyen
parent b9514f890a
commit de7f340182
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guide/english/python/functions/index.md
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@ -58,6 +58,13 @@ def sum(a, b):
result = sum(1, 2) result = sum(1, 2)
# result = 3 # result = 3
``` ```
It's important to note that if there is any code within the function after the `return` value, it can't be reached.
```python
def sum(a, b):
return a + b
print("This print action will never be reached")
```
You can define default values for the parameters, that way Python will interpretate that the value of that parameter is the default one if none is given. You can define default values for the parameters, that way Python will interpretate that the value of that parameter is the default one if none is given.