>>> import pandas as pd
>>> df = pd.DataFrame(dealfields)
>>> df
id label
0 214 BE
1 215 CH
2 274 DE
3 216 ES
4 416 EU
5 218 GB
6 278 HR
7 418 US
>>> data = [{
"target_country": "214,216,278,418"
}]
>>> fields = df[df['id'].isin(map(int,data[0]["target_country"].split(',')))
]['label'].tolist()
>>> target_country = ', '.join(fields)
>>> target_country
'BE, ES, HR, US'