CRUD PyMongo at command line/terminal

CRUD_pymongo.py

# Source From : https://github.com/jay3dec/CRUD_Python_MongoDb/blob/master/MongoDbCRUD.py
# Python Version : 3
# Install pymongo : pip3 install pymongo

from pymongo import MongoClient

# creating connectioons for communicating with Mongo DB
client = MongoClient('localhost:27017')
db = client.EmployeeData

def main():

	while(1):
	# chossing option to do CRUD operations
		selection = input('\nSelect 1 to insert, 2 to update, 3 to read, 4 to delete\n')
    
		if selection == '1':
			insert()
		elif selection == '2':
			update()
		elif selection == '3':
			read()
		elif selection == '4':
			print ('delete')
			delete()
		else:
			print ('\n INVALID SELECTION \n')


# Function to insert data into mongo db
def insert():
	try:
		employeeId = input('Enter Employee id :')
		employeeName = input('Enter Name :')
		employeeAge = input('Enter age :')
		employeeCountry = input('Enter Country :')

		db.Employees.insert_one(
		{
			"id" : employeeId,
			"name" : employeeName,
			"age" : employeeAge,
			"country" : employeeCountry
		})
		print ('\nInserted data successfully\n')
	except (Exception, e):
		print (str(e))
	
# Function to update record to mongo db
def update():
	try:
		criteria = input('\nEnter id to update\n')
		name = input('\nEnter name to update\n')
		age = input('\nEnter age to update\n')
		country = input('\nEnter country to update\n')

		db.Employees.update_one(
			{"id": criteria},
				{
				"$set": {
					"name":name,
					"age":age,
					"country":country
				}
			}
		)
		print ("\nRecords updated successfully\n")	
	except(Exception, e):
		print (str(e))

# function to read records from mongo db
def read():
	try:
		empCol = db.Employees.find()
		print ('\n All data from EmployeeData Database \n')
		
		for emp in empCol:
			print (emp)
	except (Exception, e):
		print (str(e))

# Function to delete record from mongo db
def delete():
	try:
		criteria = input('\nEnter employee id to delete\n')
		
		db.Employees.delete_many({"id":criteria})
		print ('\nDeletion successful\n')	
	except (Exception, e):
		print (str(e))

main()