我想了解以下内容：给定一个日期（datetime对象），一周中对应的日期是什么？
例如，星期天是第一天，星期一是第二天。。等等
然后如果输入的内容类似于今天的日期。
实例
>>> today = datetime.datetime(2017, 10, 20)
>>> today.get_weekday() # what I look for
产量可能是6（因为现在是星期五）
当前回答
以下是如何将小端字符串日期列表转换为datetime：
import datetime, time
ls = ['31/1/2007', '14/2/2017']
for d in ls:
dt = datetime.datetime.strptime(d, "%d/%m/%Y")
print(dt)
print(dt.strftime("%A"))
其他回答
如果您不完全依赖datetime模块，日历可能是更好的选择。例如，这将为您提供日期代码：
calendar.weekday(2017,12,22);
这将给你一天：
days = ["Monday","Tuesday","Wednesday","Thursday","Friday","Saturday","Sunday"]
days[calendar.weekday(2017,12,22)]
或者以python的风格，作为一行：
["Monday","Tuesday","Wednesday","Thursday","Friday","Saturday","Sunday"][calendar.weekday(2017,12,22)]
使用Canlendar模块
import calendar
a=calendar.weekday(year,month,day)
days=["MONDAY","TUESDAY","WEDNESDAY","THURSDAY","FRIDAY","SATURDAY","SUNDAY"]
print(days[a])
在MATLAB中，高斯方法
day_name={'Sun','Mon','Tue','Wed','Thu','Fri','Sat'}
month_offset=[0 3 3 6 1 4 6 2 5 0 3 5]; % common year
% input date
y1=2022
m1=11
d1=22
% is y1 leap
if mod(y1,4)==0 && mod(y1,100)==0 && mod(y1,400)==0
month_offset=[0 3 4 0 2 5 0 3 6 1 4 6]; % offset for leap year
end
% Gregorian calendar
weekday_gregor=rem( d1+month_offset(m1) + 5*rem(y1-1,4) + 4*rem(y1-1,100) + 6*rem(y1-1,400),7)
day_name{weekday_gregor+1}
0:星期日1:星期一。。6:星期六
我为CodeChef问题解决了这个问题。
import datetime
dt = '21/03/2012'
day, month, year = (int(x) for x in dt.split('/'))
ans = datetime.date(year, month, day)
print (ans.strftime("%A"))
如果你想用英语约会：
from datetime import date
import calendar
my_date = date.today()
calendar.day_name[my_date.weekday()] #'Wednesday'
