init.py

Overview

This file serves as the entry point for the lightweight timing utility package, providing an interface for importing key timer-related components. It exposes the TaskTimer class and the now_ts function from the internal timer module, thereby simplifying access to the core timing functionality for external modules or applications.

The primary purpose is to enable users to leverage precise task timing features without needing to directly access internal submodules. This encapsulation aligns with best practices for Python package design, promoting ease of use and clear API boundaries.

Imported Entities

TaskTimer

• Source: timer.py

• Description: A class implementing a lightweight, precise timer for measuring elapsed time with millisecond precision.

• Functionality: Supports starting, stopping, resetting the timer, and retrieving elapsed time.

• Usage: Allows developers to measure the duration of arbitrary code blocks or tasks reliably.

• Reference: See Precise Task Timing for detailed behavior, usage patterns, and implementation details.

now_ts

• Source: timer.py

• Description: A utility function returning the current timestamp as a floating-point number representing seconds since the epoch.

• Functionality: Acts as a time retrieval abstraction to obtain consistent time measurements.

• Usage: Used internally by TaskTimer and can be used independently for timing or scheduling purposes.

• Reference: See Current Time Utility for more details.

Implementation Details

• The file contains only import statements and a module-level docstring.

• The docstring is written in Japanese and states that the package is a lightweight time measurement utility, created primarily for verifying the operation of a documentation generation tool.

• This minimalistic design reflects a clean separation of concerns, where the init.py acts solely as a public API surface for the package.

• No additional logic, classes, or functions are declared within this file.

• By importing TaskTimer and now_ts here, users can simply import these directly from the package root, e.g.:

from your_package_name import TaskTimer, now_ts

timer = TaskTimer()
timer.start()
# ... perform task ...
timer.stop()
print(f"Elapsed time: {timer.elapsed_ms} ms")

Interaction with Other Components

• This file bridges the timer.py module and external consumers by exposing the timer API.

• It facilitates integration with other modules such as scheduling utilities and demonstration scripts, which rely on precise timing.

• It supports modular design by isolating internal implementation details within timer.py while presenting a simplified interface.

• The package structure typically looks like:

your_package/
├── __init__.py  <-- This file
├── timer.py     <-- Contains TaskTimer and now_ts implementations
├── demo.py      <-- Demonstrates usage of timing and scheduling
└── test_timer.py <-- Contains tests for timer functionality

Visual Diagram: Package Structure and API Exposure

flowchart TD
subgraph Package
A[__init__.py] --> B[timer.py]
end
B --> C[TaskTimer Class]
B --> D[now_ts Function]
A --> E[External Modules]
E -->|Imports| A

• The diagram shows init.py importing from timer.py and exposing the TaskTimer class and now_ts function to external modules.

• External modules import from the package root, gaining access to timer utilities without direct dependency on internal files.

For comprehensive understanding of the timer functionality exposed here, consult Precise Task Timing. For timing utility usage examples, refer to Timer Usage Demo.