I am having a strange problem. I have a method that returns a boolean. In turn I need the result of that function returned again since I cant directly call the method from the front-end. Here's my code:
# this uses bottle py framework and should return a value to the html front-end @get('/create/additive/<name>') def createAdditive(name): return pump.createAdditive(name) def createAdditive(self, name): additiveInsertQuery = """ INSERT INTO additives SET name = '""" + name + """'""" try: self.cursor.execute(additiveInsertQuery) self.db.commit() return True except: self.db.rollback() return False This throws an exception: TypeError("'bool' object is not iterable",)
I don't get this error at all since I am not attempting to "iterate" the bool value, only to return it.
If I return a string instead of boolean or int it works as expected. What could be an issue here?
Traceback:
Traceback (most recent call last): File "C:\Python33\lib\site-packages\bottle.py", line 821, in _cast out = iter(out) TypeError: 'bool' object is not iterable 1 Answer
Look at the traceback:
Traceback (most recent call last): File "C:\Python33\lib\site-packages\bottle.py", line 821, in _cast out = iter(out) TypeError: 'bool' object is not iterable Your code isn't iterating the value, but the code receiving it is.
The solution is: return an iterable. I suggest that you either convert the bool to a string (str(False)) or enclose it in a tuple ((False,)).
Always read the traceback: it's correct, and it's helpful.
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