http://www.jaicompris.com/python/pyth...
Course on character strings in Python
how to create a string - quotation marks - type str
how to access a character in a string - numbering a[0] and a[-1] with negatives
understanding that you cannot modify a string
string length len(a)
how to take a "piece of the string" (slicing): word[a:b]
joining 2 strings end to end (string1+string2) (concatenation)
mathematics SNT programming NSI