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Python 45 minutes hangout #3
The document outlines topics covered in a Python hangout session including data types, functions, exceptions, namespaces, and file handling. It discusses functional programming concepts such as higher order functions, anonymous functions, and decorators, as well as advanced iteration techniques like list comprehension and generator expressions. Key points also include managing file operations and command-line options using optparse.
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Python 45 minutes hangout #3
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- 2. Last Hangout ❖ Data typesand containers ❖ Functions ❖ Exceptions ❖ Namespaces and modules ❖ Re-read the sorted list example.
- 3. In This Hangout ❖ Workingwith files ❖ Reading options passed to your program ❖ Functional programming ❖ Advanced iteration ❖ Debugging tools
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- 5. Working With Files ❖ What’ssimpler than open(“path/to/file”) ? ❖ Don’t forget to close the file (finally:) ❖ And even cleaner way use managed context (with:) ❖ File-like objects.
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- 7. Reading Options ❖ from optparseimport OptionParser ❖ Adding options (short and long), setting default values and errors ❖ using __main__ the entry point.
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- 9. Functional Programing ❖ Python isa multi-paradigm language (What does that mean?) ❖ Functions are objects and they are first class variables. ❖ Higher order functions ❖ Remember the first hangout example ?
- 10. Functional Programing (2) ❖ Anonymousfunctions (lambda) ❖ Nested functions (function that defines function) ❖ Closures and “Lexical Scoping” issue. ❖ Operators as functions ❖ Trying doctest. ❖ Decorators and (@notation).
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- 12. Advanced Iteration ❖ List comprehension ❖ Generatorexpressions ❖ Understanding yield ❖ itertools ❖ zip and izip
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