Python descriptors. (2016)

• Record Type: Book
• Further Information: Note: Jacob Zimmerman.
• Other Names: (Computer programmer), Zimmerman, Jacob
• Contents: At a Glance; Contents; About the Author; About the Technical Reviewer; Acknowledgments; Introduction; Part I: About Descriptors; Chapter 1: What Is a Descriptor?; Data Descriptors vs. Nondata Descriptors; The Use of Descriptors by Python; Summary; Chapter 2: The Descriptor Protocol; __get__(self, instance, owner); __set__(self, instance, value); __delete__(self, instance); Summary; Chapter 3: What Are Descriptors Good For?; Data Encapsulation; Reuse of Read/Write Patterns; Lazy Instantiation; Validation; Writing for the Class Level; Hiding Function Calls Within Attribute Access. Triggering ActionsSummary; Chapter 4: Descriptors in the Standard Library; property; classmethod; staticmethod; Regular Methods; Summary; Chapter 5: Attribute Access and Descriptors; Instance Access; Class Access; Set and Delete Calls; The Reasoning Behind Data vs. Nondata Descriptors; Summary; Part II: Making Descriptors; Chapter 6: Which Methods Are Needed?; When __get__(€) Is Called Without instance; Raise Exception or Return self; Unbound Attributes; Summary; Chapter 7: Storing the Attributes; Class-Level Storage; Storing Data on the Descriptor; Storing on the Instance Dictionary. Asking for the LocationSet-it-and-forget-it Descriptors; Indirectly Asking for the Location; Name Mangling; Fetching the Name; Keying on the ID; Letting the User Take Care of It; Metadescriptors; Summary; Chapter 8: Read-Only Descriptors; Set-Once Descriptors; Secret-Set Descriptors; Forced-Set Descriptors; Class Constants; Summary; Chapter 9: Writing __delete__(); Summary; Chapter 10: Descriptors are Classes Too; Inheritance; More Methods; Optional/Default Parameters; Descriptors on Descriptors; Passing an Instance Around; Descriptors Just Abstract Method Calls; Summary. Chapter 11: Reusing the WheelStorage Solutions; Read-Only Solutions; Simple Unbound Attributes; Summary; Chapter 12: Other Uses of Descriptors in the World; SQLAlchemy4; Jigna; Elk; Validators; Summary; Bibliography; Index.
• Publisher Details: United States : Apress
• Publication Date: 2016
• Extent: 1 online resource
• Subjects: 005.13/3; 004; Computer science; Python (Computer program language); COMPUTERS -- Programming Languages -- Python; Python (Computer program language); Computer Science; Python; Programming Languages, Compilers, Interpreters; Programming Techniques; Computers -- Programming Languages -- General; Computers -- Programming -- General; Programming & scripting languages: general; Computer programming / software development; Python (Computer program language); Electronic books
• Languages: English
• ISBNs: 9781484225059; 1484225058; 9781484225042
• Related ISBNs: 9781484225042; 148422504X
• Notes: Note: Includes bibliographical references and index.
• Access Rights: Legal Deposit; Only available on premises controlled by the deposit library and to one user at any one time; The Legal Deposit Libraries (Non-Print Works) Regulations (UK).
• Access Usage: Restricted: Printing from this resource is governed by The Legal Deposit Libraries (Non-Print Works) Regulations (UK) and UK copyright law currently in force.