Solution

app/main.py

@@ -1,3 +1,46 @@
 class OnlineCourse:
-    # write your code here
-    pass
+    def __init__(self, name: str, description: str, weeks: int) -> None:
+        self.name = name
+        self.description = description
+        self.weeks = weeks
+
+    @staticmethod
+    def days_to_weeks(days: int) -> int:
+        """
+        Convert days to weeks.
+
+        Args:
+            days (int): The number of days.
+
+        Returns:
+            int: The number of weeks (round up for any extra days).
+        """
+        return (days + 6) // 7  # Round up to the next week if there are extra days.
+
+    @classmethod
+    def from_dict(cls, course_dict: dict) -> "OnlineCourse":
+        """
+        Create an instance of OnlineCourse from a dictionary.
+
+        Args:
+            cls: The class itself.
+            course_dict (dict): A dictionary with course data.
+
+        Returns:
+            OnlineCourse: A new instance of the class.
+        """
+        weeks = cls.days_to_weeks(course_dict["days"])
+        return cls(
+            name=course_dict["name"],
+            description=course_dict["description"],
+            weeks=weeks
+        )
+
+# Example usage
+course_dict = {
+    "name": "Python Core",
+    "description": (
+        "After this course you will know everything about Python"
+    ),
+    "days": 12,
+}