Discuss the role of languages like Python in the analysis of big data, such as but not limited to a grocery store database of purchases.
Define big data. How can software determine patterns of human behavior from this data? How does this information affect business decisions? What tools are available in Python to analyze data? Select one specific tool and examine a hypothetical scenario where it would be used in analyzing data to determine a pattern. Describe the tool and share a documentation resource. Describe the hypothetical scenario where this tool could be used. Address how this tool would help in analyzing data to determine patterns.