To append the elements of the element list to the somelist without creating a list of lists, you can use the extend() method instead of the append() method. Here's an example of how you can modify your code:

```py
somelist = []

for x in something:
    element = dosomething(x)
    
    if isinstance(element, list):
        somelist.extend(element)
    else:
        somelist.append(element)
```

In the above code, the isinstance() function is used to check if element is a list. If it is a list, the extend() method is used to add each element of element to somelist. If element is not a list, the append() method is used to add it directly to somelist.

With this modification, if somelist is initially ['banana'] and element is ['apple', 'orange'], the resulting somelist will be ['banana', 'apple', 'orange'].
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