[Python] Sample code for Python grammar

Introduction

I wrote the following program to study Python, I think there is a more efficient way to write, so I made this article so that I would like to hear the opinions of experts. If you are an expert who says that you can write in shorter lines, please comment.

Japanese calendar conversion

`Japanese calendar conversion`


#Years(Year)Enter with
year=int(input())

Syear=[1868, 1912, 1926, 1989, 2019, 9999]
wareki=['Meiji', 'Taisho', 'Showa', 'Heisei', 'Reiwa', '']

i=0

#Japanese calendar conversion
while Syear[i]<=year:
   Wyear=year-Syear[i]+1
   Wname=wareki[i]
   i+=1

#output
print(str(year)+'Year is'+Wname+str(Wyear)+'Year')

Age judgment

`Age judgment`


import datetime

#Birthday(Year)Enter
Tymd=input()

#Divided by date
param=Tymd.split('/')
Tyear=int(param[0])
Tmonth=int(param[1])
Tday=int(param[2])

#Get the current date
Today=datetime.datetime.now()
year=Today.year
month=Today.month
day=Today.day

#Age calculation
age=int(year)-int(Tyear)
if int(month) < int(Tmonth):
    age-=1
else:
    if month==Tmonth:
        if day < Tday:
            age-=1

#output
print(Tymd+'People'+str(age)+'age')

Day of the week judgment

`Day of the week judgment`


import math

#Input value(Example: 1997/9/11)To receive
x=input()

#Divide the input value into year, month and day
y=x.split('/')
year = int(y[0])
month=int(y[1])
day=int(y[2])

#output
print(str(year)+'Year'+str(month)+'Month'+str(day)+'day', end='')

if month < 3:
    month=month+12
    year=year-1

#Ask for the day of the week
weekday = (year + math.floor(year / 4) - math.floor(year / 100) + math.floor(year / 400) + math.floor((13*month+8) / 5) + day) % 7
week = ['Day', 'Month', 'fire', 'water', 'wood', 'Money','soil']

#output
print(str(week[weekday])+'It's the day of the week')

Multi-digit digit decomposition

`Multi-digit digit decomposition`


#Receive input value
x=int(input())

num=[]

#Decompose every digit
while x>0:
    num.append(x%10)
    x//=10
num.reverse()

#output
for i in range(len(num)):
 print(num[i], end=' ')

Leap year judgment

`Leap year judgment`


#Years(Year)Enter
year=int(input())

#Leap year judgment
if year%4==0:
    if year%100==0:
        if year%400==0:
            print(str(year)+'The year is a leap year')
    else:
        print(str(year)+'The year is a leap year')
else:
    print(str(year)+'The year is not a leap year')

Zodiac judgment

`Zodiac judgment`


#Years(Year)Enter
year=int(input())

#All zodiac signs
Alleto =["Monkey(Monkey)", "Rooster(Bird)", "Dog(Dog)", "亥(Wild boar)", "Child(mouse)"
            , "Cow(Ushi)", "Tiger(Tiger)", "Rabbit(Rabbits)", "Dragon(Tatsu)", "Snake(Snake)", "Horse(Horse)", "Not yet(sheep)"]

#Zodiac judgment&output
print(str(year)+'The zodiac of the year'+Alleto[year%12])

Primality test

`Primality test`


#Enter a number greater than or equal to 2
num=int(input())

# 0:Prime number
# 1:Not a prime number
sosu=0

#Primality test
for i in range(2, num):
    if num%i==0:
        sosu=1
        break

#output
if sosu==0:        
    print(str(num)+'Is a prime number')
elif sosu==1:
    print(str(num)+'Is not a prime number')