In Python, I wrote this:
bvar=mht.get_value() temp=self.treemodel.insert(iter,0,(mht,False,*bvar)) I'm trying to expand bvar to the function call as arguments. But then it returns:
File "./unobsoluttreemodel.py", line 65 temp=self.treemodel.insert(iter,0,(mht,False,*bvar)) ^ SyntaxError: invalid syntax What just happen? It should be correct right?
Update: this behavior was fixed in Python 3.5.0, see PEP-0448:
Unpacking is proposed to be allowed inside tuple, list, set, and dictionary displays:
*range(4), 4 # (0, 1, 2, 3, 4) [*range(4), 4] # [0, 1, 2, 3, 4] {*range(4), 4} # {0, 1, 2, 3, 4} {'x': 1, **{'y': 2}} # {'x': 1, 'y': 2} If you want to pass the last argument as a tuple of (mnt, False, bvar[0], bvar[1], ...) you could use
temp = self.treemodel.insert(iter, 0, (mht,False)+tuple(bvar) ) The extended call syntax *b can only be used in calling functions, function arguments, and tuple unpacking on Python 3.x.
>>> def f(a, b, *c): print(a, b, c) ... >>> x, *y = range(6) >>> f(*y) 1 2 (3, 4, 5) Tuple literal isn't in one of these cases, so it causes a syntax error.
>>> (1, *y) File "<stdin>", line 1 SyntaxError: can use starred expression only as assignment target 
* resolution operator is not allowed for creating tuples.Not it isn't right. Parameters expansion works only in function arguments, not inside tuples.
>>> def foo(a, b, c): ... print a, b, c ... >>> data = (1, 2, 3) >>> foo(*data) 1 2 3 >>> foo((*data,)) File "<stdin>", line 1 foo((*data,)) ^ SyntaxError: invalid syntax You appear to have an extra level of parentheses in there. Try:
temp=self.treemodel.insert(iter,0,mht,False,*bvar) Your extra parentheses are trying to create a tuple using the * syntax, which is a syntax error.
