我尝试从时间戳中提取小时: 我有一个名为df_no_missing的数据框:
df_no_missing.info()
<class 'pandas.core.frame.DataFrame'> Int64Index: 34673 entries, 1 to 43228 Data columns (total 8 columns): TIMESTAMP 34673 non-null object P_ACT_KW 34673 non-null float64 PERIODE_TARIF 34673 non-null object P_SOUSCR 34673 non-null float64 SITE 34673 non-null object TARIF 34673 non-null object depassement 34673 non-null float64 date 34673 non-null int64 dtypes: float64(3), int64(1), object(4) memory usage: 2.4+ MB
这是我的代码:
from datetime import datetime,timedelta
mytime = datetime.strptime(df_no_missing["TIMESTAMP"],"%d/%m/%Y %H:%M")
print (mytime.day)
print (mytime.hour)
我收到此错误:
in() 1 df_no_missing.info() 2来自datetime import datetime,timedelta ----&GT; 3 mytime = datetime.strptime(df_no_missing [&#34; TIMESTAMP&#34;],&#34;%d /%m /%Y%H:%M&#34;) 4打印(mytime.day) 5打印(mytime.hour)
TypeError:strptime()参数1必须是str,而不是Series
答案 0 :(得分:0)
您可能希望在单个条目而不是数据框对象本身上使用datetime.strptime
?尝试类似:
for data in df_no_missing["TIMESTAMP"]:
mytime = datetime.strptime(data,"%d/%m/%Y %H:%M")
print (mytime.day)
print (mytime.hour)