如何将 csv 文件中的时间格式从 DD:MM:YY HH:MM 更改为 YYYY-MM-DD HH:MM:SS。 或 YYYY/MM/DD HH:MM:SS

Question

I'm trying to upload a CSV file to BigQuery, the required data type for the schema field for the date is "DATETIME"

"

bigquery.SchemaField("DATE", "DATETIME", mode="REQUIRED")

"

but in my CSV file, the format is DD:MM:YY HH:MM, and I'm receiving the error of 'Invalid DateTime string "21.03.22 22:02"'. I would appreciate if anyone can help me convert the date format into CSV via python.

Answer 1

from dateutil import parser

date = parser.parse("21.03.22 22:02")

Output

2022-03-21 22:02:00

use a parser. If you can use the data in pandas, then you can convert the data in one go using pd.to_datetime.

import pandas as pd

df = pd.DataFrame({'A':[1, 2, 3],
                   'Data':["21.03.22 22:02", "22.03.22 22:02", "23.03.22 22:02"]})
print(df)
df['Data'] = pd.to_datetime(df['Data'])
print(df)

before

   A            Data
0  1  21.03.22 22:02
1  2  22.03.22 22:02
2  3  23.03.22 22:02

after

   A                Data
0  1 2022-03-21 22:02:00
1  2 2022-03-22 22:02:00
2  3 2022-03-23 22:02:00