Python Programming. Examples and Notes

Input and output:

• String Formatting

Numbers:

• The int() function
• The sum of the digits of a random three-digit number
• A prime number or a composite
• Convert a decimal number to any number system with a base up to 9

Lists:

• List Methods
• List Comprehensions and Generator Expressions
• Copying of objects, the copy module
• Replacing List Items
• Find the value of the list that occurs most often

Dictionaries:

• Sorting Dictionary

Sets:

• Set operations

Files:

• Reading data from a file and writing to a file
• Counting of lines, words and letters in a text file
• The pickle module

File system:

• The os module
• The os.walk() function
• Checking if a file or directory exists

Functions:

• Using lambda expressions

Object-oriented programming:

• The difference between type() and isinstance()

Exceptions:

• User-defined exception classes