Lecture 5 — Python Strings

Reading

This material is drawn from Chapter 4 of Practical Programming, 2nd edition.

More Than Just Numbers

  • Strings are our fourth type, after integers, floats and Boolean.

  • We’ve already seen the use of strings in output:

    print("Hello world")
x = 18
y = 11
print("Value of x is", x, "value of y is", y)

Topics for Today

  • String basics

  • String operations

  • Print formatting

Strings — Definition

  • A string is a sequence of 0 or more characters delimited by single quotes or double quotes:

    'Rensselaer'
"Troy, NY"
'41 18 154 23 402'
''