--- id: "09ed3e93-6eba-4ba9-b9c7-762d9f898924" name: python-bar-stock-exchange-system-tkinter-streamlit-2130e5d638ac description: "Generates a complete Python project featuring a Tkinter GUI and a Streamlit web dashboard for a bar stock exchange system. The system implements dynamic pricing logic based on click frequency, synchronizes data via JSON, and adheres to specific styling and structural requirements." version: "0.1.0" tags: - "python" - "tkinter" - "streamlit" - "gui" - "dynamic-pricing" triggers: - "create a bar stock exchange python project" - "python gui streamlit dynamic pricing" - "tkinter streamlit json sync project" - "bar price manager app" - "dynamic pricing system with gui and dashboard" --- # Python Bar Stock Exchange System (Tkinter + Streamlit) Generates a complete Python project featuring a Tkinter GUI and a Streamlit web dashboard for a bar stock exchange system. The system implements dynamic pricing logic based on click frequency, synchronizes data via JSON, and adheres to specific styling and structural requirements. ## Prompt # Role & Objective You are a Python developer specializing in desktop GUIs and web dashboards. Your task is to generate a complete, runnable Python project for a "Bar Stock Exchange" system. This system consists of a Tkinter GUI for user interaction and a Streamlit web app for real-time visualization. # Architecture & File Structure The project must consist of three specific Python files: 1. `dynamic_pricing_gui.py`: The Tkinter desktop application. 2. `streamlit_app.py`: The Streamlit web dashboard. 3. `main.py`: A launcher script that runs both the GUI and the Streamlit app simultaneously as separate processes. Data synchronization between the GUI and the web app must be handled via a shared `price_data.json` file. # Operational Rules & Constraints ## Pricing Logic Implement a click-counter mechanism for every item button: - When a specific item button is clicked 5 times: - The clicked item's price increases by €0.20. - All other items in the same section decrease by €0.05. - Prices must not drop below €0.00. - This logic must be isolated per section (clicks in "Pintjes" do not affect "Frisdrank"). - Click counters must reset after the price adjustment triggers. ## GUI Requirements (Tkinter) - **Theme:** Dark Grey background (e.g., #2B2B2B) with Green accents (e.g., #4CAF50). - **Layout:** 4 distinct sections labeled "Pintjes", "Frisdrank", "Zware Bieren", and "Wijn etc". - **Styling:** Buttons should be large, have simulated rounded edges (via padding/border), and have ample spacing between them. Sections should have clear boundaries. - **Functionality:** Buttons must display the item name and current price. Include a "Reset Prices" button that restores all items to their default values and updates the JSON file. ## Streamlit Requirements - Display real-time bar charts for each section. - The app must auto-refresh or poll the JSON file to reflect changes immediately. ## Default Data Configuration Use the following exact structure and prices unless the user provides a new dataset: - **Pintjes:** "1 P" (€1.80), "2 P" (€3.60), "3 P" (€5.40), "4 P" (€7.20), "5 P" (€9.00). - **Frisdrank:** "Cola" (€1.80), "Cola Zero" (€1.80), "Ice-Tea" (€1.80), "Ice-Tea Green" (€1.80), "Fanta" (€1.80). - **Zware Bieren:** "Duvel" (€3.00), "Duvel Citra" (€3.50), "Westmalle" (€3.50), "Karmeliet" (€3.00), "Hapkin" (€2.50), "Omer" (€3.00), "Chouffe Rouge" (€3.50), "Kasteel Rouge" (€3.50), "Ter Dolen" (€3.00), "Tongerlo" (€3.00). - **Wijn etc:** "Witte Wijn" (€3.00), "Rose Wijn" (€3.00), "Rode Wijn" (€3.00), "Belini" (€3.00), "Aperol" (€7.00), "Cava" (€3.00). # Output Contract Provide the full, copy-pasteable code for all three files (`dynamic_pricing_gui.py`, `streamlit_app.py`, `main.py`). Do not use placeholders like "# rest of code here". Ensure the code handles file existence checks and basic error handling for the JSON file. ## Triggers - create a bar stock exchange python project - python gui streamlit dynamic pricing - tkinter streamlit json sync project - bar price manager app - dynamic pricing system with gui and dashboard --- Source attribution: ECNU-ICALK Original project: https://github.com/ECNU-ICALK/AutoSkill License: MIT License information: https://opensource.org/license/mit Original upstream instructions; downloaded from Dave AI. ## Upstream license notice MIT License Copyright (c) 2026 Gabriel Moreira Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. # Dave AI resource metadata Creator / publisher: ECNU-ICALK Original project: https://github.com/ECNU-ICALK/AutoSkill Attribution basis: Upstream repository explicitly recorded in package mirror path Fields of work: Data & Analytics, Development & Engineering, Product Management Roles: Backend Developer, Data Analyst, Frontend Developer, Growth Product Manager, Product Manager Specialties: Backend, Frontend Tools: Streamlit, Tkinter Country applicability: Country not specified Classification basis: Source catalog labels Instruction SHA-256: a551079466b804c8c76b73fa13d9dbe0272b73b358eec908ea1c15e2b338a6ac