Best answer to any question like this is "use the right tool for the job." In the case of Java and Python, Java is quite clearly better suited to large strateg

Best answer to any question like this is "use the right tool for the job." In the case of Java and Python, Java is quite clearly better suited to large strategic code such as core systems, whilst Python on the other hand is ideal for quick, often rewritten and short lived applications (e.g 1-3 years life) as there are many accounts of startups rebuilding their platforms 1-2 years in, i'd suggest theres a good business case for using lean and quick technologies within the first few years, whilst your innovating and learning your business