Debugging and Profiling

These libraries help you with Python development: the debugger enables you to step through code, analyze stack frames and set breakpoints etc., and the profilers run code and give you a detailed breakdown of execution times, allowing you to identify bottlenecks in your programs.

• bdb — Debugger framework

• pdb — The Python Debugger
• Debugger Commands
• How It Works

• The Python Profilers
  • Introduction to the profilers
  • Instant User’s Manual
  • What Is Deterministic Profiling?
  • Reference Manual – profile and cProfile
    • The Stats Class
  • Limitations
  • Calibration
  • Extensions — Deriving Better Profilers

• hotshot — High performance logging profiler
  • Profile Objects
  • Using hotshot data
  • Example Usage

• timeit — Measure execution time of small code snippets
  • Command Line Interface
  • Examples

• trace — Trace or track Python statement execution
  • Command Line Usage
  • Programming Interface