Tachyon is a new sampling profiler introduced in Python 3.15. It offers a command-line interface (CLI) for profiling scripts and attaching to running processes. Statistical profiling involves taking periodic snapshots of a program's state to estimate time spent in different code sections. Tachyon, as a sampling profiler, collects these snapshots to build its performance estimates. The accuracy of Tachyon's results increases with longer run times and higher sampling frequencies. The article aims to explain statistical profiling and demonstrate Tachyon's CLI usage. Tachyon is part of the profiling.sampling module in the standard library. This series celebrates Python 3.15 with daily explanations of new features. Subscribing to the email series provides clear examples for each feature. The provided text begins by introducing Tachyon and its core functionality.