ETL Pipeline for Bank Data

Project Background
Bank Market Data ETL is a Python project designed to automate the process of extracting, transforming, and loading (ETL) financial market data from various sources. The project focuses on extracting data from JSON and CSV files, transforming the data by converting market capitalization to GBP (£), and loading the transformed data into a CSV file for further analysis.

Objectives
Automate the ETL process for financial market data.
Extract data from JSON and CSV files.
Transform market capitalization from USD to GBP.
Load the transformed data into a CSV file.
Log the progress of the ETL process with timestamps.
Provide a structured workflow for automating ETL tasks.
Methodology
Dependencies: Ensure the following dependencies are installed:

Python 3.x
Pandas: A Python library for data manipulation and analysis.
Glob: A module for selecting files in a directory.
xml.etree.ElementTree: A module for processing XML files.
Datetime: A module for working with dates and times.
Functions:

extract_json_file(file_to_extract): Extracts data from a JSON file and returns a Pandas DataFrame.
extract_files(): Extracts data from JSON files in the directory and returns a combined Pandas DataFrame.
extract_csv_file(file_to_extract): Extracts data from a CSV file and returns a Pandas DataFrame.
transform_marketcap(df): Transforms market capitalization data from USD to GBP and updates the DataFrame accordingly.
load(dataframe, target_file): Writes the DataFrame to a CSV file.
log_now(message): Logs a message with a timestamp to a log file.
Results
Extracted Data: Financial market data was successfully extracted from JSON and CSV files.
Transformed Data: Market capitalization data was converted from USD to GBP.
Loaded Data: The transformed data was saved into a CSV file named "transformed_data.csv".
Logs: Progress of the ETL process was recorded in "logfile.txt".
Usage Tips
Ensure Python and the required dependencies are installed.
Run the script in your Python environment to perform ETL operations on bank market data.
Sample Output
Transformed data saved in a CSV file named "transformed_data.csv".
Log messages recorded in "logfile.txt", indicating the progress of the ETL process.
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