我有一个包含以下示例数据的csv文件：

[Network]
Network Settings
RECORDNAME,DATA
UTDFVERSION,8
Metric,0
yellowTime,3.5
allRedTime,1.0
Walk,7.0
DontWalk,11.0
HV,0.02
PHF,0.92

[Nodes]
Node Data
INTID,TYPE,X,Y,Z,DESCRIPTION,CBD,Inside Radius,Outside Radius,Roundabout Lanes,Circle Speed
1,1,111152,12379,0,,,,,,
2,1,134346,12311,0,,,,,,
3,3,133315,12317,0,,,,,,
4,1,133284,13574,0,,,,,,

我需要帮助来弄清楚如何使用python将其放置到两个单独的表中。到目前为止，我有以下代码，但当我尝试使用它时，我在“if row ['RECORDNAME '] == 'Network Settings'：“上得到了一个键错误。

# Open the file
with open('filename.csv', 'r') as f:
  # Create a reader
  reader = csv.DictReader(f)
  
  # Initialize empty lists for the tables
  network_table = []
  nodes_table = []
  
  # Loop through the rows
  for row in reader:
    # Check if the row contains the "RECORDNAME" key
    if 'RECORDNAME' in row:
      # Check if the row belongs to the "Network" or "Nodes" section
      if row['RECORDNAME'] == 'Network Settings':
        # Add the row to the "Network" table
        network_table.append(row)
      elif row['INTID'] is not None:
        # Add the row to the "Nodes" table
        nodes_table.append(row)
      
  # Print the tables
  print(network_table)
  print(nodes_table)

如有任何建议，我们将不胜感激。