feat: sick bay software

README.md

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+# Sick bay software of the SS Probably Fine
+
+Run `python3 sickbay.py`.

sickbay.py

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+"""Sick bay software of the SS Probably Fine.
+
+Maintained by Dr. Honk, who does not believe in type hints. Yet.
+
+Temperatures are measured in degrees Celsius, unless stated otherwise.
+"""
+
+import random
+
+PATIENTS = {
+    "Captain Vega": 37.1,
+    "Lt. Byte": 38.6,
+    "Cmdr. Nova": 36.8,
+    "Ensign Pixel": 39.2,
+}
+
+FEVER_THRESHOLD = 38.0
+
+
+def to_celsius(value, unit):
+    """Convert a temperature in the given unit ("C", "F", or "K") to Celsius."""
+    if unit == "C":
+        return value
+    if unit == "F":
+        return (value - 32) * 5 / 9
+    if unit == "K":
+        return value - 273.15
+    raise ValueError(f"Unknown unit: {unit}")
+
+
+def has_fever(celsius):
+    return celsius >= FEVER_THRESHOLD
+
+
+def fever_patients(patients):
+    """Return the names of all patients with fever, in alphabetical order."""
+    return sorted(name for name, celsius in patients.items() if has_fever(celsius))
+
+
+def find_patient(query, patients):
+    """Return the full name of the first patient whose name contains `query`."""
+    for name in patients:
+        if query.lower() in name.lower():
+            return name
+    return None
+
+
+def average_temperature(temperatures):
+    if not temperatures:
+        return "n/a"
+    return sum(temperatures) / len(temperatures)
+
+
+def pick_random(items):
+    """Return a random element of a list."""
+    return random.choice(items)
+
+
+def greet(query, patients):
+    name = find_patient(query, patients)
+    return f"Quack, {name.upper()}! Dr. Honk will see you now."
+
+
+def ward_report(patients):
+    average = average_temperature(list(patients.values()))
+    lines = [f"Patients: {len(patients)}", f"Average temperature: {round(average, 1)} °C"]
+    for name in fever_patients(patients):
+        lines.append(f"  FEVER: {name}")
+    return "\n".join(lines)
+
+
+if __name__ == "__main__":
+    print(ward_report(PATIENTS))
+    print(greet("byte", PATIENTS))
+    print(f"Today's volunteer for the flu shot: {pick_random(list(PATIENTS))}")
+    print(f"101.3 °F = {to_celsius(101.3, 'F'):.1f} °C")