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■CONTENTS xvii ■CHAPTER 17 Extending Python . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 357 The Really Easy Way: Jython and IronPython . . . . . . . . . . . . . . . . . . . . . 358 Writing C Extensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 360 A Swig of . . . SWIG. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 361 Hacking It on Your Own . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 365 A Quick Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 370 New Functions in This Chapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 371 What Now? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 371 ■CHAPTER 18 Packaging Your Programs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 373 Distutils Basics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 373 Basic Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 374 Wrapping Things Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 376 Compiling Extensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 378 Creating Executable Programs with py2exe . . . . . . . . . . . . . . . . . . . . . . 379 A Quick Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 380 New Functions in This Chapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 380 What Now? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 380 ■CHAPTER 19 Playful Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 381 Why Playful? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 381 The Ju-Jitsu of Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 381 Prototyping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 382 Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 383 Extracting Constants. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 383 Configuration Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 384 Logging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 385 If You Can’t Be Bothered . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 387 Project Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 388 A Quick Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 388 What Now? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 389
xviii ■CONTENTS ■CHAPTER 20 Project 1: Instant Markup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 391 What’s the Problem? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 391 Specific Goals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 392 Useful Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 392 Preparations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 392 First Implementation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 394 Adding Some Markup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 395 Second Implementation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 396 Handlers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 397 A Handler Superclass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 398 Rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 399 A Rule Superclass. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 400 Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 401 The Parser . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 401 Constructing the Rules and Filters . . . . . . . . . . . . . . . . . . . . . . . . . . 402 Putting It All Together. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 403 Further Exploration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 408 What Now? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 409 ■CHAPTER 21 Project 2: Painting a Pretty Picture . . . . . . . . . . . . . . . . . . . . . 411 What’s the Problem? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 411 Specific Goals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 412 Useful Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 412 How Does It Work? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 412 Preparations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 412 First Implementation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 413 Drawing with ReportLab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 413 Constructing Some PolyLines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 415 The Prototype . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 416 Second Implementation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 417 Getting the Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 417 Using the LinePlot Class. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 418 Further Exploration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 420 What Now? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 420
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572 APPENDIX C ■ ONLINE RESOURCES
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Index ■Symbols - operator 558 !=
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■INDEX 577 assertEqual method Tes
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■INDEX 579 cmd module 252, 501 Cm
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■INDEX 581 get method 74-75 has_k
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■INDEX 583 ■F Factory class twi
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■INDEX 585 finding conflicts 197
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■INDEX 593 playful programming 38
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