Raise error that can be handled by try/except

[rhijjawi]

Issue #34 refers to the fact that when a word is not found, the console prints an error that cannot be captured. This PR fixes this issue by raising an error that can be handled.

[shyamcody]

There are also errors being printed in line 63,94,111 of core.py. @rhijjawi can you please add changes so that we raise error in them as well.

[rhijjawi]

Done 👍

[rhijjawi]

#34

[shyambhu-mukherjee]

I don't think raise <string> is a valid way to raise an error. Please provide some type to the error, i.e. raise valueError(string) or so on. Please correct me if I am wrong; but try to run your code sample in local and check if it runs.

[rhijjawi]

The git owner @geekpradd set that part up. I could push a fix that would work around that. Keep in mind that that solution raise works well in case you don't know what error is going to be thrown.

[rudiejd]

Was about to submit a PR with the exact same code verbatim. Would be awesome if this gets added because right now I'm hashing the error message to check whether a word is invalid

[rudiejd]

what type of exceptions would get raised here? is it possible to raise other named exceptions in this block?

[rhijjawi]

Sorry I just saw this, I haven't been on GitHub in a while. Depends on the error in the Exception. If anyone knows the complete list of errors thrown by this exception, go ahead and list them here.