You can set default parameters: If you don’t explicitly call the class with j and k, your instance will use the defaults you defined in the init parameters. So when you create an instance of this object, you can use all four parameters as normal: OpticalTransition(‘sodium’, 5, 100, 27) Or you can omit the parameters with defaults with OpticalTransition(‘sodium’, 5), … Read more
So it’s throwing up that error message because you have apache2 running on port 80. If this is for development, I would just leave it as it is on port 5000. If it’s for production either: Not Recommended Stop apache2 first; Not recommended as it states in the documentation: You can use the builtin server during development, but you … Read more
It was moved to functools.
Strings are “immutable” for good reason: It really saves a lot of headaches, more often than you’d think. It also allows python to be very smart about optimizing their use. If you want to process your string in increments, you can pull out part of it with split() or separate it into two parts using indices: This … Read more
Strings are “immutable” for good reason: It really saves a lot of headaches, more often than you’d think. It also allows python to be very smart about optimizing their use. If you want to process your string in increments, you can pull out part of it with split() or separate it into two parts using indices: This … Read more
Your checkAnswer() function returns a tuple: Here return right, answer returns a tuple of two values. Note that it’s the comma that makes that expression a tuple; parenthesis are optional in most contexts. You assign this return value to right: making right a tuple here. Then when you try to add 1 to it again, the error occurs. You don’t change answer within the function, so there … Read more
Use shared variable to communicate. For example like this:
Change them to rows: Then just:
For float have a look at sys.float_info: Specifically, sys.float_info.max: If that’s not big enough, there’s always positive infinity: The long type has unlimited precision, so I think you’re only limited by available memory.