project #1

Reverse the order of words in a string. Create and interactive program that ...

1. ask the user to enter a text string
2. if no string was entered, exit
3. create a new string with the words in reverse order
4. display the input string and the reversed string
5. display the object ID's of the two strings
6. loop

Questions

• what defines a word in a text string? (what separates words?)
• what about hyphenated words?
• are words only defined by the letters a-z?
• what about numbers with commas? (e.g. 12,567,490)
• is a capitalized word the same as an uncapitalized word?

project #2

Count the unique words in a string. Create and interactive program that ...

1. ask the user to enter a text string
2. if no string was entered, exit
3. process the string counting the number unique words in the string
4. display the input string and the word counts
5. loop

Question: is a capitalized word the same as an uncapitalized word?

Hint: use a Python dictionary?

project #3

Count the unique letters in a string. Create and interactive program that ...

1. ask the user to enter a text string
2. if no string was entered, exit
3. process the string counting the number of unique letters in the string
4. display the input string and the letter counts
5. loop

Question:

• is a "space" a letter? (computer text vs book text?)
• is a capitalized letter the same as an uncapitalized letter? (characters vs letters?)

How do you find the letters not in a string? (only ASCII characters/letters?)