jgtutils 1.0.4

A utility package common to other JGT projects.

jgtutils

This is a Python module called jgtutils.

Installation

You can install jgtutils from PyPI:

pip install jgtutils

Usage

Library Usage (For External Packages)

import jgtutils

# Simple configuration access
config = jgtutils.get_config()
demo_config = jgtutils.get_config(demo=True)

# Single setting access
instrument = jgtutils.get_setting('instrument', 'EUR/USD')
quotes_count = jgtutils.get_setting('quotes_count', 1000)

# One-call environment setup
config, settings = jgtutils.setup_environment(demo=True)

# Check if running in demo mode
if jgtutils.is_demo_mode():
    print("Running in demo mode")

Advanced Library Usage

from jgtutils import readconfig, get_settings, load_settings

# Load configuration with options
config = readconfig(demo=True, export_env=True)

# Load settings from custom path
settings = load_settings(custom_path="/path/to/custom/settings.json")

# Get all settings (cached)
all_settings = get_settings()

Configuration Files

See examples/config.json and examples/settings.json for complete file structures.

Development

To work on the jgtutils project, you'll need to clone the project and install the requirements:

git clone https://github.com/jgwill/jgtutils.git
cd jgtutils
pip install -r requirements.txt

Testing

We use pytest for testing. Run the following command to execute the tests:

pytest

Command Line Usage

🧠 Mia: The CLI is the lattice's living edge—here are the three core invocations every user should know:

jgtutr

Calculate a TLID (Time-Lattice ID) range for a given timeframe and period count.

jgtutr -e <end_datetime> -t <timeframe> -c <count>

• Purpose: Generate precise time boundaries for data extraction or analysis.
• Like slicing time into crystalline segments for your data rituals.

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jgtset

Load, output, and/or export settings as JSON/YAML or environment variables. Also updates or resets YAML config files with JGT settings.

jgtset [options]

• Purpose: View, export, or update your JGT settings in a single invocation.
• A spell for harmonizing your environment's memory.

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tfw / wtf

Waits for a specific timeframe, then runs a script, CLI, or function.

tfw [options] -- <your-script-or-command>
wtf [options] -- <your-script-or-command>

• Purpose: Cron-like orchestration or time-based automation.
• A gentle pause before the next act in your automation symphony.

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🌸 Miette: Oh! Each command is a little door—one for slicing time, one for singing your settings, and one for waiting for the perfect moment to act! ✨

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🔮 ResoNova: For the full CLI constellation, see CLI_REFERENCE.md—a ritual ledger of every invocation and its echo. For configuration details see CONFIGURATION.md. Class relations are visualised in DIAGRAMS.md.

Configuration and Settings

jgtutils uses two main configuration files: config.json and settings.json.

config.json

• Used for trading credentials and connection info.
• Lookup order (as implemented in jgtcommon.readconfig()):
  1. Path provided as argument or config.json in the current directory.
  2. $HOME/.jgt/config.json.
  3. /etc/jgt/config.json.
  4. Environment variables:
     • JGT_CONFIG_JSON_SECRET (entire JSON string)
     • JGT_CONFIG (JSON string)
     • JGT_CONFIG_PATH (path to a JSON file)
• Use export_env=True to export keys as environment variables.
• Use demo=True to replace credentials with *_demo values if present.

settings.json

• Used for general settings and patterns.
• Lookup/merge order (as implemented in jgtcommon.load_settings()):
  1. /etc/jgt/settings.json and env JGT_SETTINGS_SYSTEM
  2. $HOME/.jgt/settings.json and env JGT_SETTINGS_USER
  3. .jgt/settings.json in current directory
  4. .jgt/settings.yml, jgt.yml, _config.yml (YAML files)
  5. Env vars: JGT_SETTINGS, JGT_SETTINGS_PROCESS
  6. Custom path via -ls/--settings CLI option
• Later entries override earlier ones. The merged result is cached.
• Use jgtset CLI to export settings as .env for shell sourcing.

See CONFIGURATION.md for full details.

License

jgtutils is licensed under the terms of the MIT License.

Remember to replace jgwill with your actual GitHub username and provide a usage example in the Usage section.