Creating a Menu in Python

Question

I m working on making a menu in python that needs to     Print out a menu with numbered options Let the user enter a numbered option Depending on the option number the user picks  run a function specific to that action  For now  your function can just print out that it s being run  If the user enters in something invalid  it tells the user they did so  and re-display the menu use a dictionary to store menu options  with the number of the option as the key  and the text to display for that option as the value  The entire menu system should run inside a loop and keep allowing the user to make choices until they select exit quit  at which point your program can end    I m new to Python  and I can t figure out what I did wrong with the code    So far this is my code    ans True while ans      print           1 Add a Student     2 Delete a Student     3 Look Up Student Record     4 Exit Quit               ans input  What would you like to do        if ans   1          print   nStudent Added        elif ans   2         print   n Student Deleted        elif ans   3         print   n Student Record Found        elif ans   4         print   n Goodbye        elif ans             print   n Not Valid Choice Try again      ANSWERED  This is what he wanted apparently   menu      menu  1    Add Student    menu  2    Delete Student   menu  3    Find Student  menu  4    Exit  while True     options menu keys     options sort       for entry in options         print entry  menu entry       selection raw input  Please Select         if selection    1          print  add       elif selection     2          print  delete      elif selection     3         print  find       elif selection     4          break     else         print  Unknown Option Selected

User · Answer

There were just a couple of minor amendments required:

ans=True
while ans:
    print ("""
    1.Add a Student
    2.Delete a Student
    3.Look Up Student Record
    4.Exit/Quit
    """)
    ans=raw_input("What would you like to do? ") 
    if ans=="1": 
      print("\n Student Added") 
    elif ans=="2":
      print("\n Student Deleted") 
    elif ans=="3":
      print("\n Student Record Found") 
    elif ans=="4":
      print("\n Goodbye") 
    elif ans !="":
      print("\n Not Valid Choice Try again")

I have changed the four quotes to three (this is the number required for multiline quotes), added a closing bracket after "What would you like to do? " and changed input to raw_input.

User · Answer

This should do it  You were missing a   and you only need     not 4 of them  Also you don t need a elif at the end    ans True while ans      print         1 Add a Student     2 Delete a Student     3 Look Up Student Record     4 Exit Quit              ans raw input  What would you like to do         if ans   1         print   nStudent Added       elif ans   2         print   n Student Deleted       elif ans   3         print   n Student Record Found       elif ans   4         print   n Goodbye          ans   None     else         print   n Not Valid Choice Try again

User · Answer

It looks like you ve just finished step 3  Instead of running a function  you just print out a statement  A function is defined in the following way   def addstudent        print  Student Added      then called by writing addstudent     I would recommend using a while loop for your input  You can define the menu option outside the loop  put the print statement inside the loop  and do while  valid option is not picked   then put the if statements after the while  Or you can do a while loop and continue the loop if a valid option is not selected    Additionally  a dictionary is defined in the following way   my dict    key definition

User · Answer

def my add fn       print  SUM  s  sum map int raw input  Enter 2 numbers seperated by a space   split      def my quit fn       raise SystemExit  def invalid       print  INVALID CHOICE    menu     1    Sum  my add fn            2    Quit  my quit fn           for key in sorted menu keys          print key       menu key  0   ans   raw input  Make A Choice   menu get ans  None invalid   1

[python] Creating a Menu in Python

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