python - 从字典创建 Pandas Dataframe 的问题

Question

我已经从这样的字典创建了一个数据框:

import pandas as pd
data = {'Name': 'Ford Motor', 'AssetType': 'Common Stock', 'Exchange': 'NYSE'}

records = []
statement = {}
    
for key, value in data.items():
    statement = {}
    statement[key] = value

    records.append(statement)
df = pd.DataFrame(records)

如果我这样做，输出将如下所示:

    Name        AssetType     Exchange
0   Ford Motor  NaN           NaN
1   NaN         Common Stock  NaN
2   NaN         NaN           NYSE

我想要第一行的值，结果如下所示:

    Name    AssetType    Exchange
0   Ford    Common Stock NYSE

Answer 1

创建数据框时，只需将data放入列表[]中即可:

import pandas as pd
data = {'Name': 'Ford Motor', 'AssetType': 'Common Stock', 'Exchange': 'NYSE'}

df = pd.DataFrame([data])
print(df)

打印:

         Name     AssetType Exchange
0  Ford Motor  Common Stock     NYSE