Unit 18 Homework: PyChain Ledger - Rachel Pierce

January 2022

Instructions:

Four main tasks:

1. Create a new data class named Record.
2. Modify the existing Block data class to store Record data.
3. Add Relevant User Inputs to the Streamlit interface.
4. Test the PyChain Ledger by Storing Records.

Please refer to the following documents in GitHub:

• The pychain.py file (open in Spyder) for code details and the screenshot_streamlit.png and screenshot_streamlit2.png files in the images folder.

Step 1: Create a new data class named Record - Completed.

@dataclass  
class Record:  
    sender: str  
    receiver: str  
    amount: float  

Step 2: Modify the existing Block data class to store Record data - Completed.

record: Record  

Step 3: Add Relevant User Inputs to the Streamlit interface - Completed.

sender = st.text_input("Sender")
receiver = st.text_input("Receiver")
amount = st.text_input("Amount")

Step 4: Test the PyChain Ledger by Storing Records - Completed in Streamlit.

This task included entering values for sender, receiver, and amount several times to add transactions to the chain. Then I clicked Validate, result = True. Refer to screenshots.