Covering some basic topics I haven't seen elsewhere on Cody.
Return the number of punctuation characters in the input variable.
Trouble in the test suite :)
I think the problem is with Cody itself today. It's doing weird things. If you submit this solution again it fails.
Back to basics 25 - Valid variable names
Sophie Germain prime
Number of Horns on a unicorn!
Perfect Square or not
Back to basics 2 - Function Path
Back to basics 15 - classes
Back to basics 6 - Column Vector
Back to basics 21 - Matrix replicating
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