将字典导出到 csv 文件：d={key:value} 值是一个列表

Question

I'm trying to output my dictionary as a CSV file. But I didn't manage to do it properly. my output file looks very bad. Does anyone have an idea of how to put values coming from in the same key in the same column?

dico = {'names': ['Jimmy', 'Drew'], 'age':[25, 30]}
df = pd.DataFrame.from_dict([dico])
df.to_csv('file.csv', sep='\t',header=True, index=False, mode='w')


# output file looks like this:
age names
[25, 30]    ['Jimmy', 'Drew']

I also tried:

with open('mycsvfile.csv','w' ) as f:
    w = csv.DictWriter(f, fieldnames=dico.keys())
    w.writeheader()
    w.writerow(dico)

But the problem is the same

Answer 1

The problem is in dataframe creation. If you take a look at df, each cell contains an array:

>>> df
        age          names
0  [25, 30]  [Jimmy, Drew]

Replace the creation line with:

df = pd.DataFrame.from_dict(dico)

And csv will be saved as needed.