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Python comprehensions

Python comprehensions
Python list comprehension to convert all characters to upper case.>>> countries = ['america', 'india', 'england'] >>> >>> countries_to_upper = map(str.upper, [country for country in countries ]) >>> print countries_to_upper ['AMERICA', 'INDIA', 'ENGLAND'] Python set comprehension to convert all characters to upper case.>>> countries = ['america', 'india', 'england', 'america'] >>> countries_to_upper = map(str.upper, {country for country in countries }) >>> print countries_to_upper ['ENGLAND', 'AMERICA', 'INDIA'] Python dict comprehension>>> countries = [{ 'name': 'america'}, {'name':'india'}, {'name':'england'}] >>> countries_with_new_key = [{'country_name':country['name']} for country in countries ] >>>…