Faster Pandas: Make your code run faster and consume less memory| Miki Tebeke, CEO 353solutions.

Make Pandas code more efficient and scalable by optimizing memory usage, avoiding loops, and leveraging parallel processing, profiling tools, and specific data types.

Key takeaways
  • Optimize before measuring: Measure the performance of code before optimizing it to avoid unnecessary optimizations that may not provide a significant gain.
  • Understand the Python VM: Understand how the Python virtual machine (VM) works to optimize code better.
  • Use profiling tools: Use profiling tools like cProfile and line_profiler to measure the performance of code.
  • Avoid for loops in Pandas: Avoid using for loops in Pandas as they can be slow, instead use vectorized operations.
  • Use dtypes: Use specific dtypes when loading data from CSV to reduce memory usage.
  • Monitor memory usage: Monitor memory usage to detect anomalies and optimize code accordingly.
  • Use parallel processing: Use parallel processing libraries like Dask and PySpot to process large datasets.
  • Optimize for specific use cases: Optimize code for specific use cases and requirements.
  • Understand the data: Understand the data and its characteristics to optimize code accordingly.
  • Use NaN-aware operations: Use NaN-aware operations in Pandas to handle missing values efficiently.
  • Avoid guessing: Avoid guessing the performance of code and instead use profiling tools to measure it.
  • Know when to optimize: Know when to optimize code and when to consider alternative solutions.
  • Use timing and profiling: Use timing and profiling tools to measure the performance of code and identify bottlenecks.
  • Optimize for business value: Optimize code for business value and metrics rather than just performance.
  • Test and measure: Test and measure the performance of code before and after optimization.