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Core Python 3

Robust Resource and Error Handling

Austin Bingham and Robert Smallshire

Exceptions are ubiquitous in Python. In this course, you'll broaden your knowledge of exceptions and how to work with them. You'll also be introduced to context managers, Python's facility for safely and automatically managing resources.

The dominant error handling strategy in Python is the use of exceptions, and exceptions are ubiquitous in the Python language, standard library, and package ecosystem. In this course, Core Python 3: Robust Resource and Error Handling, you’ll understand how to work with exceptions in Python. First, you’ll be introduced to context managers, Python’s facility for safely and automatically managing resources. Next, you'll see how larger systems often benefit greatly from more sophisticated exception handling strategies. Finally, you'll discover how to model database transactions. When you're finished with this course, you’ll know how to chain associated exception together, define your own exceptions, and define and deploy context managers.

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What's inside

Syllabus

Course Overview

Review

Exception Hierarchies

Exception Payloads

User-defined Exceptions

Exception Chaining

Tracebacks

Assertions

Context Managers

The Context Manager Decorator

Multiple Context Managers in a With-Statement

Example: Modeling Database Transactions with Context Managers

Good to know

Know what's good

, what to watch for

, and possible dealbreakers

Develops skills that are highly relevant to software development by building a solid foundation in error and resource handling in Python

Strengthens an existing foundation in Python error handling by presenting intermediate concepts like exception hierarches

Builds on the dominant error handling strategy in Python, the use of exceptions

Provides a deep dive into context managers, Python's facility for safely managing resources

Develops knowledge of exception payloads and tracebacks, functions that provide more information about the error

May require learners to take other relevant courses in error and exception handling before enrolling

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Career center

Learners who complete Core Python 3: Robust Resource and Error Handling will develop knowledge and skills that may be useful to these careers:

Database Administrator

A Database Administrator manages and maintains databases. These professionals monitor database performance, create and manage user accounts, and implement security measures. This course would be particularly relevant to a Database Administrator because it covers how to model database transactions with context managers.

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Technical Writer

A Technical Writer creates user guides, technical manuals, and other documentation. This often involves writing code examples. This course provides an understanding of error handling in Python, which is an important skill for a Technical Writer who may need to write documentation for software or code.

See salaries and explore the career path for Technical Writer

Data Analyst

A Data Analyst collects, processes, and analyzes data to gain insights and solve problems. This often involves working with databases to extract and manipulate data. This course provides a foundation in error handling, which is crucial to ensuring that data is handled and processed correctly.

See salaries and explore the career path for Data Analyst

Data Scientist

A Data Scientist uses data to solve problems and make predictions. They work with large datasets to identify patterns and trends. This course provides a foundation in error handling, which is crucial to ensuring that data is handled and processed correctly.

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Cloud Engineer

A Cloud Engineer designs, builds, and manages cloud computing solutions. They work with clients to understand their needs and then design and implement solutions that meet those needs. This course may be helpful for a Cloud Engineer because it provides an understanding of how to handle errors and exceptions in a cloud computing environment.

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Systems Analyst

A Systems Analyst studies an organization's current business processes and identifies opportunities for improvement. They then design and implement new systems to improve efficiency and productivity. This course may be helpful for a Systems Analyst because it provides an understanding of how to handle errors and exceptions in complex systems.

See salaries and explore the career path for Systems Analyst

Security Engineer

A Security Engineer designs and implements security measures to protect an organization's data and systems. They work with clients to understand their security needs and then design and implement solutions that meet those needs. This course may be helpful for a Security Engineer because it provides an understanding of how to handle errors and exceptions in a security environment.

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Software Engineer

A Software Engineer designs, develops, and maintains software systems. The work of a Software Engineer is often critical to an organization's ongoing success. As a Software Engineer, having the ability to handle errors and raise or suppress exceptions is essential. This course can help build a foundation in error handling, by providing an understanding of exception hierarchies, user-defined exceptions, and exception chaining.

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Solutions Architect

A Solutions Architect designs and implements technology solutions for organizations. They work with clients to understand their needs and then design and implement solutions that meet those needs. This course may be helpful for a Solutions Architect because it provides an understanding of how to handle errors and exceptions in a complex systems environment.

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Quality Assurance Analyst

A Quality Assurance Analyst tests software to identify and fix bugs. They work with developers to ensure that software meets the requirements and is free of defects. This course may be useful for a Quality Assurance Analyst because it provides an understanding of how to handle errors and exceptions in software.

See salaries and explore the career path for Quality Assurance Analyst

Software Quality Assurance Engineer

A Software Quality Assurance Engineer tests software to identify and fix bugs. They work with developers to ensure that software meets the requirements and is free of defects. This course may be useful for a Software Quality Assurance Engineer because it provides an understanding of how to handle errors and exceptions in software.

See salaries and explore the career path for Software Quality Assurance Engineer

Product Manager

A Product Manager is responsible for the development and management of a product. They work with engineers, designers, and marketers to ensure that a product meets the needs of the market. This course may be helpful for a Product Manager because it provides an understanding of how to handle errors and exceptions in a product development environment.

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Business Analyst

A Business Analyst studies an organization's business processes and identifies opportunities for improvement. They then work with stakeholders to design and implement new solutions. This course may be helpful for a Business Analyst because it provides an understanding of how to handle errors and exceptions in a business environment.

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Web Developer

A Web Developer creates and maintains websites. This typically involves writing code, often in Python for more complex websites. Web Developers may also be responsible for managing databases that store information used by a website. This course helps to build a foundation in error handling, which can be crucial to preventing errors in data storage and retrieval.

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Project Manager

A Project Manager plans, executes, and closes projects. They are responsible for ensuring that projects are completed on time, within budget, and to the required quality standards. This course may be useful for a Project Manager because it provides an understanding of how to handle errors and exceptions in a project environment.

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Reading list

We've selected 14 books that we think will supplement your learning. Use these to develop background knowledge, enrich your coursework, and gain a deeper understanding of the topics covered in Core Python 3: Robust Resource and Error Handling.

Fluent Python