The Well-Grounded Python Developer (MEAP v9)

Description

When you’re new to Python, it can be tough to understand where and how to use its many language features. There’s a dizzying array of libraries, and it’s challenging to fit everything together. The Well-Grounded Python Developer builds on Python skills you’ve learned in isolation and shows you how to unify them into a meaningful whole. As you work through this practical guide, you’ll discover how all the bits of the Python ecosystem connect as you build and modify a typical web server application. about the technology Python is the perfect language for beginning programmers. It is easy to learn, with tons of helpful libraries and tools. Better still, it doesn’t run out of steam when you want to create more advanced applications for web development or Machine Learning. Once you’ve mastered the syntax of simple Python scripts, it can be a challenge to progress to more ambitious projects. This book helps you on that path. about the book The Well-Grounded Python Developer teaches you how to write real software in Python by building on the basic language skills you already have. Veteran developer Doug Farrell helps you see the big picture you can create out of small pieces, introducing concepts like modular construction, APIs, and the design of a basic web server. Throughout the book, you’ll practice your skills by building a blogging platform—the kind of web app that’s in high demand by modern businesses. When you’re finished, you’ll have gone from having a basic understanding of Python's syntax, grammar, and libraries to using them as the tools of a professional software developer. The Well-Grounded Python Developer MEAP V09 Copyright Welcome Brief contents Chapter 1: Becoming a Pythonista 1.1 Commitment to learning 1.2 Reaching goals 1.2.1 Thinking like a developer 1.2.2 Building applications 1.3 Using Python 1.3.1 Programming paradigms 1.3.2 Creating maintainable code 1.3.3 Performance 1.3.4 The language community 1.3.5 Developer tooling 1.4 Python version to use 1.5 Closing thoughts 1.6 Summary Chapter 2: That’s a good name 2.1 Names 2.1.1 Naming things 2.1.2 Naming experiment 2.2 Namespaces 2.3 Python namespaces 2.3.1 Builtins level 2.3.2 Module level 2.3.3 Function level 2.3.4 Namespace scope 2.3.5 Namespace experiment 2.4 Summary Chapter 3: The API, let's talk 3.1 Starting a conversation 3.1.1 A contract between pieces of code 3.1.2 What's passed as input 3.1.3 What's expected as output 3.2 Function API 3.2.1 Naming 3.2.2 Parameters 3.2.3 Return value 3.2.4 Single responsibility 3.2.5 Function length 3.2.6 Idempotence 3.2.7 Side-effects 3.3 Documentation 3.4 Closing thoughts 3.5 Summary Chapter 4: The object of conversation 4.1 Object-oriented programming 4.1.1 Class definition 4.1.2 Drawing with class 4.1.3 Inheritance 4.1.4 Polymorphism 4.1.5 Composition 4.2 Closing thoughts 4.3 Summary Chapter 5: Exceptional events 5.1 Exceptions 5.2 Handling exceptions 5.2.1 Handle an exception if the code can do something about it 5.2.2 Allow exceptions to flow upward in your programs 5.2.3 Informing the user 5.2.4 Never silence an exception 5.3 Raising an exception 5.4 Creating your own exceptions 5.5 Closing thoughts 5.6 Summary Chapter 6: Sharing with the internet 6.1 Sharing your work 6.1.1 Web application advantages 6.1.2 Web application challenges 6.2 Servers 6.2.1 Request - response model 6.3 Web servers 6.4 Flask 6.4.1 Why Flask 6.4.2 Your first web server 6.4.3 Serving content 6.4.4 More jinja2 features 6.5 Running the web server 6.5.1 Gunicorn 6.5.2 Commercial hosting 6.6 Closing thoughts 6.7 Summary Chapter 7: Doing it with style 7.1 Application styling 7.1.1 Creating appealing styles 7.1.2 Styling consistency 7.1.3 Normalizing styles 7.1.4 Responsive design 7.2 Integrating bootstrap 7.2.1 Previous example now with bootstrap 7.3 Helping MyBlog grow 7.3.1 The Flask app instance 7.4 Namespaces 7.4.1 Flask blueprints 7.4.2 Add blueprints to MyBlog 7.4.3 Create the about page 7.4.4 Refactored app instance 7.5 Navigation 7.5.1 Creating navigation information 7.5.2 Displaying navigation information 7.5.3 MyBlog's current look 7.6 Application configuration 7.6.1 Configuration files 7.6.2 Private information 7.7 Flask debug toolbar 7.7.1 FlaskDynaConf 7.8 Logging information 7.8.1 Configuration 7.9 Adding a favicon 7.10 Closing thoughts 7.11 Summary Chapter 8: Do I know you? Authentication 8.1 The HTTP protocol is stateless 8.1.1 Sessions 8.2 Remembering someone 8.2.1 Authentication 8.2.2 Logging in 8.3 News flash 8.3.1 Improving the login form 8.4 Making new friends 8.4.1 New user form 8.4.2 Oh yeah, logging out 8.4.3 What's next 8.5 Summary Chapter 9: What can you do? Authorization 9.1 Login/logout navigation 9.2 Confirming new friends 9.2.1 Sending email 9.3 Resetting passwords 9.4 User profiles 9.5 Security 9.5.1 Protecting routes 9.6 User authorization roles 9.6.1 Creating the roles 9.6.2 Authorizing routes 9.7 Protecting forms 9.8 Closing thoughts 9.9 Summary Chapter 10: Persistence is good: databases 10.1 The other half 10.1.1 Maintaining information over time 10.2 Accessing data 10.3 Database systems 10.3.1 Tables 10.3.2 Relationships 10.3.3 Transaction database 10.3.4 Structured query language: SQL 10.4 SQLite as the database 10.5 SQLAlchemy 10.5.1 Benefits 10.6 Modeling the database 10.6.1 Defining the classes 10.7 Creating and using the database 10.7.1 Adding Data 10.7.2 Using the data 10.8 Closing thoughts 10.9 Summary Chapter 11: I’ve got something to say 11.1 MyBlog posts 11.1.1 Modeling the database 11.2 Change of direction 11.3 Content blueprint 11.4 Displaying and creating posts 11.4.1 Display handler 11.4.2 Display template 11.5 Creating posts 11.5.1 Creation handler 11.5.2 Creation form 11.5.3 Creation template 11.6 Displaying and editing a post 11.6.1 Display handler 11.6.2 Display template 11.6.3 Update handler 11.6.4 Update form 11.6.5 Update template 11.7 Content to comment hierarchy 11.7.1 Modifying the post class 11.7.2 Display handler 11.7.3 Display template 11.8 Creating comments 11.8.1 Creation template 11.8.2 Creation form 11.8.3 Creation handler 11.9 Notifying users 11.10 Handing site errors 11.11 Closing thoughts 11.12 Summary Chapter 12: Are we there yet? 12.1 Testing 12.1.1 Unit testing 12.1.2 Functional testing 12.1.3 End-to-end testing 12.1.4 Integration testing 12.1.5 Load testing 12.1.6 Performance testing 12.1.7 Regression testing 12.1.8 Accessibility testing 12.1.9 Acceptance testing 12.2 Debugging 12.2.1 Reproducing bugs 12.2.2 Breakpoints 12.2.3 Logging 12.2.4 Bad results 12.2.5 Process of elimination 12.2.6 Rubber-ducking the problem 12.3 Source control 12.4 Optimization 12.5 OS environments 12.6 Cloud computing 12.7 Containers 12.8 Databases 12.9 Languages 12.10 Networking 12.11 Collaboration 12.12 Closing thoughts 12.13 Summary Appendix: Your development environment A.1 Installing Python A.1.1 Windows A.1.2 Mac A.1.3 Linux A.2 Python Virtual Environment A.2.1 Windows A.2.2 Mac and Linux A.3 Setting up Visual Studio Code A.3.1 Installing Visual Studio Code A.3.2 Installing Python Extension A.3.3 Other Useful Extensions A.3.4 Starting From the Command Line A.3.5 Starting a Project A.4 Some Advice