Can someone help me to add the ReGex operator to my calculator?

Instruction:

• You need to check whether the input is string or float or integer, or complex and will return a message accordingly.
• You need to accept only float or integer.

My calculator code is below:

P.S. Im using google collab.

defbasic_calc(): print("Selectoperation.") print("1.Add") print("2.Subtract") print("3.Multiply") print("4.Divide") print("5.Modulo") choices=('1','2','3','4') choice=input()  ifchoiceinchoices:  num1=float(input("Enterthefirstnumber:")) num2=float(input("Enterthesecondnumber:")) total=0  ifchoice=='1': print(num1,"+",num2,"=",add(num1,num2)) elifchoice=='2': print(num1,"-",num2,"=",subtract(num1,num2) elifchoice=='3': print(num1,"*",num2,"=",multiply(num1,num2) elifchoice=='4': print(num1,"/",num2,"=",divide(num1,num2) elifchoice=='5': print(num1,"%",num2,"=",modulo(num1,num2) break else: print('InvalidInput')