我有 csv 文件 file1.csv
Territory Sales Zipcode city statename
00001000 10 99764
另一个包含城市详细信息的文件
Zipcode city Statename
99764 Northway Alaska
我想像下面一样更新 file1.csv
Territory Sales Zipcode city statename
00001000 10 99764 Northway Alaska
它就像 SQL 中典型的更新语句
UPDATE file1 SET file1.value = (SELECT table2.CODE
FROM file2
WHERE table1.value = table2.DESC)
如何在 python 中执行此操作?
最佳答案
import pandas as pd
file1 = pd.read_csv('file1.csv')
file2 = pd.read_csv('file2.csv')
df = pd.merge(file1,file2,how='left', on = 'Zipcode')
df.to_csv('new_file.csv')
关于python - 根据另一个文件的 zip 合并更新 csv 文件中的城市,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/52893488/