Appendix D. List of examples

Chapter 1. Getting To Know Python

• 1.1. Diving in
  • Example 1.1. odbchelper.py
  • Example 1.2. Output of odbchelper.py

• 1.2. Declaring functions
  • Example 1.3. Declaring the buildConnectionString function

• 1.3. Documenting functions
  • Example 1.4. Defining the buildConnectionString function's doc string

• 1.4. Everything is an object
  • Example 1.5. Accessing the buildConnectionString function's doc string

• 1.5. Indenting code
  • Example 1.6. Indenting the buildConnectionString function

• 1.6. Testing modules
  • Example 1.7. The if __name__ trick
  • Example 1.8. An imported module's __name__

• 1.7. Dictionaries 101
  • Example 1.9. Defining a dictionary
  • Example 1.10. Modifying a dictionary
  • Example 1.11. Mixing datatypes in a dictionary
  • Example 1.12. Deleting items from a dictionary

• 1.8. Lists 101
  • Example 1.13. Defining a list
  • Example 1.14. Negative list indices
  • Example 1.15. Slicing a list
  • Example 1.16. Slicing shorthand
  • Example 1.17. Adding elements to a list
  • Example 1.18. Searching a list
  • Example 1.19. Removing elements from a list
  • Example 1.20. List operators

• 1.9. Tuples 101
  • Example 1.21. Defining a tuple
  • Example 1.22. Tuples have no methods

• 1.10. Defining variables
  • Example 1.23. Defining the myParams variable
  • Example 1.24. Referencing an unbound variable

• 1.11. Formatting strings
  • Example 1.25. The middle part
  • Example 1.26. Introducing string formatting
  • Example 1.27. String formatting vs. concatenating

• 1.12. Mapping lists
  • Example 1.28. List mapping in buildConnectionString
  • Example 1.29. The keys function
  • Example 1.30. Introducing list mapping
  • Example 1.31. List mapping in buildConnectionString, step by step

• 1.13. Joining lists and splitting strings
  • Example 1.32. Joining a list in buildConnectionString
  • Example 1.33. Output of odbchelper.py
  • Example 1.34. Splitting a string

• 1.14. Summary
  • Example 1.35. odbchelper.py
  • Example 1.36. Output of odbchelper.py

Chapter 2. The Power Of Introspection

• 2.1. Diving in
  • Example 2.1. apihelper.py
  • Example 2.2. Sample usage of apihelper.py
  • Example 2.3. Advanced usage of apihelper.py

• 2.2. Importing modules using from module import
  • Example 2.4. Basic from module import syntax
  • Example 2.5. import module vs. from module import

• 2.3. Optional and named arguments
  • Example 2.6. help, a function with two optional arguments
  • Example 2.7. Valid calls of help

• 2.4. type, str, dir, and other built-in functions
  • Example 2.8. Introducing type
  • Example 2.9. Introducing str
  • Example 2.10. Introducing dir
  • Example 2.11. Built-in attributes and functions

• 2.5. Getting object references with getattr
  • Example 2.12. Introducing getattr
  • Example 2.13. getattr in apihelper.py

• 2.6. Filtering lists
  • Example 2.14. List filtering syntax
  • Example 2.15. Introducing list filtering
  • Example 2.16. Filtering a list in apihelper.py

• 2.7. The and-or trick
  • Example 2.17. Introducing the and-or trick
  • Example 2.18. When the and-or trick fails
  • Example 2.19. Using the and-or trick safely

• 2.8. Using lambda functions
  • Example 2.20. Introducing lambda functions
  • Example 2.21. lambda functions in apihelper.py
  • Example 2.22. split with no arguments
  • Example 2.23. Assigning a function to a variable

• 2.9. Putting it all together
  • Example 2.24. The meat of apihelper.py
  • Example 2.25. Getting a doc string dynamically
  • Example 2.26. Why use str on a doc string?
  • Example 2.27. Introducing the ljust method
  • Example 2.28. Printing a list
  • Example 2.29. The meat of apihelper.py, revisited

• 2.10. Summary
  • Example 2.30. apihelper.py
  • Example 2.31. Output of apihelper.py

Chapter 3. An Object-Oriented Framework

• 3.1. Diving in
  • Example 3.1. fileinfo.py
  • Example 3.2. Output of fileinfo.py

• 3.2. Defining classes
  • Example 3.3. The simplest Python class
  • Example 3.4. Defining the FileInfo class

• 3.3. Instantiating classes
  • Example 3.5. Creating a FileInfo instance
  • Example 3.6. Trying to implement a memory leak

• 3.4. UserDict: a wrapper class
  • Example 3.7. UserDict __init__ method
  • Example 3.8. UserDict normal methods

• 3.5. Special class methods
  • Example 3.9. The __getitem__ special method
  • Example 3.10. The __setitem__ special method
  • Example 3.11. Overriding __setitem__ in MP3FileInfo
  • Example 3.12. Setting an MP3FileInfo's name

• 3.6. Advanced special class methods
  • Example 3.13. More special methods in UserDict

• 3.7. Class attributes
  • Example 3.14. Introducing class attributes
  • Example 3.15. Modifying class attributes

• 3.8. Private functions
  • Example 3.16. Trying to call a private method

• 3.9. Handling exceptions
  • Example 3.17. Opening a non-existent file
  • Example 3.18. Supporting platform-specific functionality

• 3.10. File objects
  • Example 3.19. Opening a file
  • Example 3.20. Reading a file
  • Example 3.21. Closing a file
  • Example 3.22. File objects in MP3FileInfo

• 3.11. for loops
  • Example 3.23. Introducing the for loop

• 3.12. Assigning multiple values at once
  • Example 3.24. Assigning multiple values at once
  • Example 3.25. Assigning consecutive values
  • Example 3.26. Returning multiple values from a function
  • Example 3.27. Iterating through a dictionary
  • Example 3.28. Dictionary mapping through multi-variable assignment
  • Example 3.29. Multi-variable for loop in MP3FileInfo