Question

One of the most important features of Python is its powerful and easy handling of strings. Defining strings is simple enough in most languages. But in Python, it is easy to search and replace, convert cases, concatenate, or access elements. We’ll discuss a few of these here. For a complete list, see: http://www.tutorialspoint.com/python/python_strings.htm

a = "A string of characters, with newline \n CAPITALS, etc."
print(a)
b=5.0
newstring = a + "\n We can format strings for printing %.2f"
print(newstring %b)

Now let’s try some other string operations:

a = "ABC DEFG"
print(a[1:3])
print(a[0:5])

There are several things to learn from the above. First, Python has associated an index to the string. Second the indexing starts at 0, and lastly, the upper limit again means ‘up to but not including’ (a[0:5] prints elements 0,1,2,3,4).

a = "ABC defg"
print(a.lower())
print(a.upper())
print(a.find('d'))
print(a.replace('de','a'))
print(a)
b = a.replace('def','aaa')
print(b)
b = b.replace('a','c')
print(b)
b.count('c')

This is fun! What else can you do with strings in Python? Pretty much anything you can think of!