Python

Source: Candlestick charts in Python

Source: Using MySQL with SQLAlchemy: Hands-on examples

Source: Mplfinance Time Axis Concerns, and Internals of Displaying or Not Displaying Non Trading periods · matplotlib/mplfinance Wiki · GitHub

Source: Pandas OHLC: Convert tick by tick data to OHLC data

Source: Stylin’ with Pandas - Practical Business Python

Source: Fast subsets of large datasets with Pandas and SQLite

Source: SQLite

Source: design - What are the data structures behind a spreadsheet? - Software Engineering Stack Exchange

Source: python - Right way to reverse a pandas DataFrame? - Stack Overflow

Source: Making a database of security prices and volumes