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Python: Safe dictionary access with lists?

Is there an exception free way to access values from a dictionary containing lists. For example, if I have: How do I access the path data[‘object_1’][‘object_2’][‘list’][0][‘property’] safely(i.e. return some default value if not possible to access without throwing error)? I am trying to avoid wrapping these in try-except’s. I have seen the reduce based approach but it doesn’t take into

What is a ‘NoneType’ object?

I’m getting this error when I run my python script: TypeError: cannot concatenate ‘str’ and ‘NoneType’ objects I’m pretty sure the ‘str’ means string, but I dont know what a ‘NoneType’ object is. My …