- Introduction:
- Worked with Python and Airflow for dynamically creating data pipelines based on configurations defined in a web application
Shared insights about Clean Code techniques for diverse data engineering teams in an article series
Technical debt, the silent evil:
Primary challenge revolved around accumulation of technical debt
Technical debt occurs when coding decisions make the code harder to change in the future
3.** Why Clean Code?:**
- Motivation for embracing Clean Code was to mitigate technical debt and it offers additional benefits
- Quality code enhances estimation accuracy, facilitating steady and predictable delivery of features
- When Clean Code Might Not Be Appropriate:
- Clean Code may not be the best choice for every project
Not suitable for single-use scripts, proof of concepts, prototypes and legacy code slated for deprecation
Code Formatting and Tools:
Importance of code formatting and layout in reaching a quality codebase
Introduction to coding standard PEP-8 and its benefits for consistency and error identification
6.** Documentation Best Practices:**
- Importance of well-documented code and usage of tools like docstrings and annotations
- Clear guidelines for good documentation in Python using docstrings and annotations
7.** Docstrings:**
- Explanation of usage and importance of docstrings in documenting code logic
- The way to add docstrings to the codebase and use of automated documentation tools like sphinx
- Annotations:
- Introduction to annotations as a tool for documenting code in Python
Explanation of how annotations reduce possibility of errors and aid in automatic type checking
Automatic code formatting with black:
Recommend using black for automatic code formatting.
Black ensures consistent code layout and formatting, reducing git diffs and allowing more effective code reviews.
Static type checking with mypy:
Mypy is recommended for static type checking.
It helps detect bugs early in development but does not enforce type restrictions in Python.
Generic types and type hints:
Type hinting with generic types like Any or Iterable can silently ignore errors.
It's important to use more specific types to avoid such issues.
Linters and code analysis with pylint:
Pylint is recommended for more advanced code analysis beyond PEP-8 standards.
It can validate imports, detect code smells, and provide suggestions for refactoring.
13.** Automating checks using Makefiles:**
- Using Makefiles to automate the execution of tools is recommended.
- It allows the configuration of commands for easier availability and execution in CI builds.
- Conclusion:
- Clean Code goes beyond formatting and layout; it's about setting a coding style standard and implementing automatic checks and good documentation practices.
The next part of the series will focus on Python idioms and design principles.
Alejandro Machado's Joining Date:
Alejandro Machado joined on Feb 28, 2024.
A comment was made on Mar 7 saying 'That's great! Thanks!'
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