Convert GroupBy Series to DataFrame

# Below are a quick example
# Example 1: Convert groupby Series
# Using groupby() & count() on multiple column
grouped_ser = df.groupby(['Courses', 'Duration'])['Fee'].count()

# Example 2: Convert groupby object to DataFrame 
grouped_df = grouped_ser.reset_index()

# Example 3: Use the as_index attribute to get groupby DataFrame
grouped_df = df.groupby(['Courses', 'Duration'], as_index = False)['Fee'].count()

# Example 4: Use the to_frame method
grouped_df = grouped_ser.to_frame()