Python processing time record

1. The data content

The corresponding data of this year is displayed as 06.14, The data of last year and the previous year show that 2021.12.27

2. Code processing

month=['01','02','03','04','05','06','07','08','09','10','11','12']
date_pre=[]
for i in df['date']:
if i.split('.')[0] in month:
i='2022.'+i
i=i.replace('.','-')
# print(i) #str 2022-06-12
i=datetime.date(*map(int,i.split('-')))
date_pre.append(i)
else:
i=i.replace('.','-')
i=datetime.date(*map(int,i.split('-')))
date_pre.append(i)
df['date_pre']=pd.DataFrame(data=date_pre)

3. Processing results

 Form like ：
2019-03-14 <class 'datetime.date'>

4. Reference link

python Change string type to date type _Python Learners' blogs -CSDN Blog _python String to date format