isoweekday() es una función que devuelve un número entero que indica que cae la fecha dada. El número entero que devuelve representa un día según la tabla que se muestra a continuación.
Sintaxis: datetime.isoweekday()
Valor devuelto: un número entero en el rango de [1,7]
| Entero devuelto | Día de la semana |
|---|---|
| 1 | Lunes |
| 2 | martes |
| 3 | miércoles |
| 4 | jueves |
| 5 | Viernes |
| 6 | sábado |
| 7 | Domingo |
Ejemplo 1: este programa toma la fecha usando el módulo DateTime y le dice el día de la fecha.
Python3
# importing the datetime module
import datetime
# Creating an list which will
# be used to retrieve the day of the
# week using the return value of the
# isoweekday() function
DaysList = ["None",
"Monday",
"Tuesday",
"Wednesday",
"Thursday",
"Friday",
"Saturday",
"Sunday"]
# Using the function today()
# to get today's date
CurrentDate = datetime.date.today()
print("Current Date is :", CurrentDate)
# Using the isoweekday() function to
# retrieve the day of the given date
day = CurrentDate.isoweekday()
print("The date", CurrentDate, "falls on",
DaysList[day])
Producción:
Current Date is : 2021-08-18 The date 2021-08-18 falls on Wednesday
Ejemplo 2: En este ejemplo, tomaremos la entrada del usuario para una fecha y devolveremos el día en que cae.
Python3
# importing the datetime module
import datetime
# Creating an dictionary with the return
# value as keys and the day as the value
# This is used to retrieve the day of the week
# using the return value of the isoweekday()
# function
DaysList = ["None",
"Monday",
"Tuesday",
"Wednesday",
"Thursday",
"Friday",
"Saturday",
"Sunday"]
# Getting the user's input
day = 18
month = 9
year = 2020
# Creating the datetime object for the user's
# input by using the date() function of datetime
# class
Date = datetime.date(year, month, day)
# Using the isoweekday() function
# to retrieve the day of the given date
day = Date.isoweekday()
print("The given date", Date, "falls on",
DaysList[day])
Producción:
The given date 2020-09-18 falls on Friday
Ejemplo 3: En este ejemplo, tomaremos la entrada del usuario para la fecha y el día en que cae y devolveremos si eso es cierto o no
Python3
# importing the datetime module
import datetime
# Creating an dictionary with the return
# value as keys and the day as the value
# This is used to retrieve the day of the week
# using the return value of the isoweekday()
# function
DaysList = ["None",
"Monday",
"Tuesday",
"Wednesday",
"Thursday",
"Friday",
"Saturday",
"Sunday"]
# Getting the user's input
day = 1
month = 1
year = 2021
day_fallen = "Friday"
# Creating the datetime object for the user's
# input by using the date() function of datetime
# class
Date = datetime.date(year, month, day)
# Using the isoweekday() function
# to retrieve the day of the given date
day = Date.isoweekday()
# Checking if the day is matching the user's
# day
if day_fallen.lower() == DaysList[day].lower():
print("Yes, your given date", Date,
"falls on your expected day i.e ",
DaysList[day])
else:
print("No, your given date", Date, "falls on",
DaysList[day],
"but not on", day_fallen)
Producción:
Sí, su fecha dada 2021-01-01 cae en su día esperado, es decir, viernes