Added 2019 puzzles, in python

Finished first two rounds of puzzle 1

2019/puzzle-1.py

@@ -0,0 +1,24 @@
+from math import floor
+
+def fuel(mass):
+    return (floor(mass / 3)) - 2
+
+def read_input():
+    with open("1-input", "r") as fp:
+        return [int(line) for line in fp.readlines()]
+
+def round_1():
+    print(f"round 1: {sum([fuel(mass) for mass in read_input()])}")
+
+def recursive_fuel(mass):
+    new_fuel = (floor(mass / 3)) - 2
+    if new_fuel <= 0:
+        return 0
+    return new_fuel + recursive_fuel(new_fuel)
+
+def round_2():
+    print(f"round 2: {sum([recursive_fuel(mass) for mass in read_input()])}")
+
+if __name__ == '__main__':
+    round_1()
+    round_2()