如何在Pandas Groupby中仅显示带有值的列

import pandas as pd

data = {
  'A': [1, 2, None, 4, None],
  'B': [None, 6, 7, None, 9],
  'C': [None, None, None, None, 15]
}

df = pd.DataFrame(data)

grouped = df.groupby('group_column').sum()

columns_with_values = grouped.columns[grouped.count() > 0]
result = grouped[columns_with_values]

import pandas as pd

data = {
  'A': [1, 2, None, 4, None],
  'B': [None, 6, 7, None, 9],
  'C': [None, None, None, None, 15]
}

df = pd.DataFrame(data)

grouped = df.groupby('group_column').sum()
columns_with_values = grouped.columns[grouped.count() > 0]
result = grouped[columns_with_values]