Python is a dynamic programming language that is designed for readability and simplicity. It can be used for web applications, data analysis, GUIs, games, and more. Some key features of Python include being highly readable, using intuitive and clear naming conventions, being interactive and forgiving, treating everything as an object, and using generators and list/dict/set comprehensions which allow data to be projected in a functional style.
17. def to_roman(num):
assert num > 0 and num < 4000
result = []
for d, r in NUMERALS:
while num >= d:
result.append(r)
num -= d
return ''.join(result)
35. Generators
def public_files(dirname):
for fname in os.listdir(dirname):
if not fname.startswith('.'):
yield fname
for fname in public_files('.'):
open(fname)