pkdevtools 0.13.20251229.321

A general day-to-day toolset for PKScreener repos

PKDevTools

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Table of Contents

• What is PKDevTools?
• Installation
• Quick Start
• Architecture Overview
• Core Modules
  • Data Provider System
  • Logging Framework
  • Database Management
  • Environment & Configuration
  • Multiprocessing
  • Telegram Integration
  • GitHub Integration
  • Pub/Sub Event System
  • Utilities
• API Reference
• Environment Variables
• Contributing
• License

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What is PKDevTools?

PKDevTools is a comprehensive Python toolkit designed for building high-performance financial applications. It provides:

• 🚀 Unified Data Provider - Multi-source stock data with automatic failover
• 📝 Thread-Safe Logging - Process-safe logging with filtering and caller info
• 🗄️ Database Management - SQLite + Turso (libsql) with sync capabilities
• ⚡ Multiprocessing - Cross-platform multiprocessing with shared state
• 📱 Telegram Integration - Send messages, documents, and media
• 🔄 GitHub Automation - Workflow triggers, commits, and API integration
• 📡 Event System - Pub/Sub pattern for decoupled components
• 🛠️ Utilities - Caching, archiving, HTTP fetching, and more

This toolkit serves as the foundation for PKScreener, PKBrokers, and PKNSETools.

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Installation

From PyPI (Recommended)

pip install PKDevTools

From Source

git clone https://github.com/pkjmesra/PKDevTools.git
cd PKDevTools
pip install -r requirements.txt
pip install -e .

Requirements

• Python 3.9+
• See requirements.txt for full dependency list

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Quick Start

from PKDevTools.classes import get_data_provider, get_scalable_fetcher
from PKDevTools.classes.log import default_logger, setup_custom_logger

# Initialize logging (set environment variable first)
import os
os.environ["PKDevTools_Default_Log_Level"] = "10"  # DEBUG level

# Get stock data
provider = get_data_provider()
df = provider.get_stock_data("RELIANCE", interval="day", count=100)

# Use the logger
logger = default_logger()
logger.info("Data fetched successfully!")

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Architecture Overview

┌─────────────────────────────────────────────────────────────────────────┐
│                           PKDevTools Architecture                       │
├─────────────────────────────────────────────────────────────────────────┤
│                                                                         │
│  ┌──────────────────┐  ┌──────────────────┐  ┌──────────────────┐       │
│  │  PKDataProvider  │  │ PKScalableData   │  │  DBManager       │       │
│  │  (Stock Data)    │  │ Fetcher (GitHub) │  │  (Turso/SQLite)  │       │
│  └────────┬─────────┘  └────────┬─────────┘  └────────┬─────────┘       │
│           │                     │                     │                 │
│           └─────────────────────┼─────────────────────┘                 │
│                                 │                                       │
│                    ┌────────────▼────────────┐                          │
│                    │     Core Services       │                          │
│                    ├─────────────────────────┤                          │
│                    │ • Logging (filterlogger)│                          │
│                    │ • Environment Config    │                          │
│                    │ • HTTP Fetcher          │                          │
│                    │ • Archiver (Caching)    │                          │
│                    └────────────┬────────────┘                          │
│                                 │                                       │
│           ┌─────────────────────┼─────────────────────┐                 │
│           │                     │                     │                 │
│  ┌────────▼─────────┐  ┌────────▼───────┐  ┌──────────▼───────┐         │
│  │   Telegram       │  │  GitHub        │  │  Pub/Sub Events  │         │
│  │   Integration    │  │  Integration   │  │  (blinker)       │         │
│  └──────────────────┘  └────────────────┘  └──────────────────┘         │
│                                                                         │
│  ┌──────────────────────────────────────────────────────────────┐       │
│  │                    Multiprocessing Layer                     │       │
│  │  PKMultiProcessorClient | PKJoinableQueue | Process Logging  │       │
│  └──────────────────────────────────────────────────────────────┘       │
│                                                                         │
└─────────────────────────────────────────────────────────────────────────┘

See Also: 1. Architecture 2. API Reference

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Core Modules

1. Data Provider System

The unified data provider fetches stock OHLCV data from multiple sources with automatic failover.

PKDataProvider

from PKDevTools.classes.PKDataProvider import PKDataProvider, get_data_provider

# Get singleton instance
provider = get_data_provider()

# Fetch stock data with automatic source selection
# Priority: Real-time (PKBrokers) → Local Pickle → Remote GitHub Pickle
df = provider.get_stock_data("RELIANCE", interval="5m", count=50)

# Fetch multiple stocks
data = provider.get_multiple_stocks(["RELIANCE", "TCS", "INFY"], interval="day")

# Check real-time availability
if provider.is_realtime_available():
    price = provider.get_latest_price("INFY")
    ohlcv = provider.get_realtime_ohlcv("INFY")

Supported Intervals:

Interval	Description
1m, 2m, 3m, 4m, 5m	Minute candles
10m, 15m, 30m, 60m	Extended minute candles
day	Daily candles

PKScalableDataFetcher

GitHub-based data fetcher without Telegram dependency:

from PKDevTools.classes.PKScalableDataFetcher import PKScalableDataFetcher, get_scalable_fetcher

fetcher = get_scalable_fetcher()

# Fetch from GitHub raw content
data = fetcher.fetch_stock_data("RELIANCE")

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2. Logging Framework

Thread and process-safe logging with automatic caller information injection.

Setup and Usage

import os
from PKDevTools.classes.log import (
    setup_custom_logger,
    default_logger,
    log_to,
    tracelog
)

# Enable logging via environment variable
os.environ["PKDevTools_Default_Log_Level"] = "10"  # DEBUG=10, INFO=20, WARNING=30, ERROR=40

# Setup custom logger
logger = setup_custom_logger(
    name="MyApp",
    levelname=10,  # DEBUG
    log_file_path="/path/to/logs.txt",
    filter="IMPORTANT"  # Only log messages containing "IMPORTANT"
)

# Use default logger
logger = default_logger()
logger.debug("Debug message")
logger.info("Info message")
logger.warning("Warning message")
logger.error("Error message")  # Automatically includes traceback
logger.critical("Critical message")

Decorator for Function Tracing

from PKDevTools.classes.log import log_to, default_logger

@log_to(default_logger().info)
def my_function(param1, param2):
    """Function calls are automatically logged with arguments and timing"""
    return param1 + param2

Log Levels

Level	Value	Description
DEBUG	10	Detailed diagnostic information
INFO	20	General operational messages
WARNING	30	Warning messages
ERROR	40	Error messages with traceback
CRITICAL	50	Critical failures

Key Classes

• filterlogger: Thread/process-safe logger with filtering
• emptylogger: No-op logger when logging is disabled
• colors: ANSI color codes for terminal formatting

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3. Database Management

Dual database support with SQLite (local) and Turso/libsql (cloud).

DBManager

from PKDevTools.classes.DBManager import DBManager, PKUser

# Initialize manager (uses environment variables for Turso connection)
db = DBManager()

# User operations
user = db.getUserByID(12345)
otp, subscription_model, validity, user = db.getOTP(
    userID=12345,
    userName="john_doe",
    fullName="John Doe"
)

# Scanner job subscriptions
db.subscribeScannerForUser(userID=12345, scannerIDs="X:12:9,X:12:31")
subscriptions = db.getSubscribedScannersByUser(userID=12345)

DatabaseSyncChecker

from PKDevTools.classes.DatabaseSyncChecker import DatabaseSyncChecker

checker = DatabaseSyncChecker(
    local_db_path="./local.db",
    turso_url="libsql://your-db.turso.io",
    turso_auth_token="your-token"
)

needs_sync, messages = checker.check_sync_status()
checker.print_counts()

Key Models

• PKUser: User model with subscription management
• PKScannerJob: Scanner job subscription model
• PKUserModel: Enum for database column mapping

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4. Environment & Configuration

Centralized environment variable and secrets management.

PKEnvironment

from PKDevTools.classes.Environment import PKEnvironment

# Singleton instance - loads from .env.dev file
env = PKEnvironment()

# Access secrets as attributes
github_token = env.GITHUB_TOKEN
chat_id = env.CHAT_ID
telegram_token = env.TOKEN

# Access all secrets
all_secrets = env.allSecrets  # Returns dict

Required Environment Variables

Variable	Description
GITHUB_TOKEN	GitHub API token for repository operations
CHAT_ID	Telegram channel/chat ID
TOKEN	Telegram bot token
chat_idADMIN	Admin chat ID for notifications
PKDevTools_Default_Log_Level	Logging level (10=DEBUG, 20=INFO, etc.)

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5. Multiprocessing

Cross-platform multiprocessing with shared state and logging support.

PKMultiProcessorClient

from PKDevTools.classes.PKMultiProcessorClient import PKMultiProcessorClient
from PKDevTools.classes.PKJoinableQueue import PKJoinableQueue
from multiprocessing import Manager

# Create shared resources
manager = Manager()
task_queue = PKJoinableQueue()
result_queue = PKJoinableQueue()

# Define processor method
def process_task(stock_code, data_dict, result_dict):
    # Process stock data
    result = analyze_stock(stock_code)
    return result

# Create worker processes
workers = []
for i in range(4):  # 4 worker processes
    worker = PKMultiProcessorClient(
        processorMethod=process_task,
        task_queue=task_queue,
        result_queue=result_queue,
        objectDictionaryPrimary=manager.dict(),
        keyboardInterruptEvent=manager.Event()
    )
    worker.start()
    workers.append(worker)

# Add tasks
for stock in ["RELIANCE", "TCS", "INFY"]:
    task_queue.put(stock)

# Signal completion and wait
task_queue.join()

PKJoinableQueue

Enhanced multiprocessing queue with join support:

from PKDevTools.classes.PKJoinableQueue import PKJoinableQueue

queue = PKJoinableQueue()
queue.put("task1")
queue.put("task2")

# Worker processes call task_done() after processing
queue.join()  # Blocks until all tasks completed

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6. Telegram Integration

Send messages, documents, and media to Telegram.

Basic Usage

from PKDevTools.classes.Telegram import (
    send_message,
    send_document,
    send_photo,
    send_media_group
)

# Send text message
send_message(
    message="Hello from PKDevTools!",
    userID="-1001234567890",
    parse_type="HTML"
)

# Send document
send_document(
    file_path="/path/to/file.pdf",
    message="Here's your report",
    userID="-1001234567890"
)

# Send photo
send_photo(
    photo_path="/path/to/image.png",
    caption="Analysis results",
    userID="-1001234567890"
)

# Send multiple documents as media group
send_media_group(
    file_paths=["/path/to/file1.pdf", "/path/to/file2.pdf"],
    message="Multiple reports",
    userID="-1001234567890"
)

Message Formatting

Messages support HTML formatting:

send_message(
    message="<b>Bold</b> <i>Italic</i> <code>Code</code>",
    userID=chat_id,
    parse_type="HTML"
)

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7. GitHub Integration

Automate GitHub operations including commits, workflow triggers, and API calls.

Committer

from PKDevTools.classes.Committer import Committer

# Copy files
Committer.copySourceToDestination(
    srcPath="results/*.pkl",
    destPath="backup/"
)

# Commit and push changes
Committer.commitTempOutcomes(
    addPath="results/*",
    commitMessage="[Auto] Updated results",
    branchName="main"
)

# Execute OS command with logging
Committer.execOSCommand("git status", showStatus=True)

WorkflowManager

from PKDevTools.classes.WorkflowManager import WorkflowManager

# Trigger GitHub Actions workflow
WorkflowManager.trigger_workflow(
    repo="pkjmesra/PKScreener",
    workflow_id="scan.yml",
    ref="main",
    inputs={"scan_type": "full"}
)

githubutilities

from PKDevTools.classes.githubutilities import (
    getWorkflowRunByName,
    stopWorkflow,
    getLatestRelease
)

# Get latest release
release = getLatestRelease("pkjmesra/PKScreener")

# Get workflow run
run = getWorkflowRunByName("pkjmesra/PKScreener", "Build")

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8. Pub/Sub Event System

Decoupled event publishing and subscription using blinker.

Publishing Events

from PKDevTools.classes.pubsub.publisher import PKUserService
from PKDevTools.classes.pubsub.events import globalEventsSignal

# Using PKUserService
service = PKUserService()
service.notify_user(scannerID="X:12:9", notification="Scan complete!")

# Direct signal publishing
globalEventsSignal.send(
    sender=self,
    eventType="custom",
    data={"key": "value"}
)

Subscribing to Events

from PKDevTools.classes.pubsub.events import globalEventsSignal

def my_handler(sender, **kwargs):
    scanner_id = kwargs.get('scannerID')
    notification = kwargs.get('notification')
    print(f"Received: {scanner_id} - {notification}")

# Subscribe to events
globalEventsSignal.connect(my_handler)

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9. Utilities

Archiver (Caching & File Management)

from PKDevTools.classes import Archiver

# Get user data directory
data_dir = Archiver.get_user_data_dir()

# Get user outputs directory
outputs_dir = Archiver.get_user_outputs_dir()

# Cache binary data
Archiver.cacheFile(binary_data, "cache_file.bin")

# Find cached file
data, path, modified_time = Archiver.findFile("cache_file.bin")

# Get last modified datetime
modified = Archiver.get_last_modified_datetime("/path/to/file")

Fetcher (HTTP Requests)

from PKDevTools.classes.Fetcher import fetcher

f = fetcher()

# Fetch URL with caching
response = f.fetchURL("https://api.example.com/data")

# Fetch with custom headers
response = f.fetchURL(
    url="https://api.example.com/data",
    headers={"Authorization": "Bearer token"}
)

PKDateUtilities

from PKDevTools.classes.PKDateUtilities import PKDateUtilities

# Check if market is open
is_open = PKDateUtilities.isTradingTime()

# Check if today is a holiday
is_holiday = PKDateUtilities.isTradingHoliday()

# Get current IST time
ist_now = PKDateUtilities.currentDateTime()

# Get trading day offset
trading_date = PKDateUtilities.tradingDate()

PKTimer

from PKDevTools.classes.PKTimer import PKTimer

# Measure execution time
with PKTimer("Operation name"):
    # Code to measure
    perform_operation()

ColorText

from PKDevTools.classes.ColorText import colorText

# Print colored text
print(colorText.GREEN + "Success!" + colorText.END)
print(colorText.FAIL + "Error!" + colorText.END)
print(colorText.WARN + "Warning!" + colorText.END)

FunctionTimeouts

from PKDevTools.classes.FunctionTimeouts import exit_after

@exit_after(5)  # Timeout after 5 seconds
def slow_function():
    # Long running operation
    pass

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API Reference

Main Exports

from PKDevTools.classes import (
    # Data Providers
    PKDataProvider,
    get_data_provider,
    PKScalableDataFetcher,
    get_scalable_fetcher,
    
    # Version
    VERSION,
)

Module Structure

PKDevTools/
├── classes/
│   ├── __init__.py              # Main exports
│   ├── PKDataProvider.py        # Unified data provider
│   ├── PKScalableDataFetcher.py # GitHub-based fetcher
│   ├── log.py                   # Logging framework
│   ├── DBManager.py             # Database management
│   ├── Environment.py           # Environment/secrets
│   ├── Fetcher.py               # HTTP client
│   ├── Telegram.py              # Telegram integration
│   ├── Committer.py             # Git operations
│   ├── WorkflowManager.py       # GitHub Actions
│   ├── PKMultiProcessorClient.py # Multiprocessing
│   ├── PKJoinableQueue.py       # Enhanced queue
│   ├── Archiver.py              # Caching/files
│   ├── PKDateUtilities.py       # Date/time utilities
│   ├── pubsub/                  # Event system
│   │   ├── events.py            # Signal definitions
│   │   ├── publisher.py         # Event publishing
│   │   └── subscriber.py        # Event handling
│   └── ...                      # Other utilities
└── release.md                   # Release notes

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Environment Variables

Variable	Required	Description
PKDevTools_Default_Log_Level	No	Logging level (10=DEBUG, 20=INFO, 30=WARNING, 40=ERROR)
GITHUB_TOKEN	Yes*	GitHub API token
TOKEN	Yes*	Telegram bot token
CHAT_ID	Yes*	Default Telegram chat ID
chat_idADMIN	No	Admin notification chat ID
TURSO_DB_URL	No	Turso database URL
TURSO_DB_AUTH_TOKEN	No	Turso authentication token

*Required for respective functionality

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Contributing

We welcome contributions! Please follow these guidelines:

Development Setup

1. Fork the repository
2. Clone your fork:

   git clone https://github.com/YOUR_USERNAME/PKDevTools.git
   cd PKDevTools
   

3. Create a virtual environment:

   python -m venv venv
   source venv/bin/activate  # or `venv\Scripts\activate` on Windows
   

4. Install development dependencies:

   pip install -r requirements.txt
   pip install -e .
   

Running Tests

# Run all tests
pytest test/

# Run with coverage
pytest --cov=PKDevTools test/

# Run specific test file
pytest test/DBManager_test.py

Code Style

We use ruff for linting:

ruff check PKDevTools/
ruff format PKDevTools/

Pull Request Guidelines

1. Create a feature branch from main
2. Write tests for new functionality
3. Ensure all tests pass
4. Update documentation as needed
5. Submit a pull request with a clear description

See CONTRIBUTING.md for detailed guidelines.

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License

This project is licensed under the MIT License - see the LICENSE file for details.

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Related Projects

• PKScreener - Stock screening application
• PKBrokers - Broker integration and real-time data
• PKNSETools - NSE market data tools

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Support

• 📖 Documentation
• 🐛 Issue Tracker
• 💬 Discussions

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