you will need to write a single python program that given an input file produces a report that reports information about the file. Your program should have the following methods/functions:: (20%)...

you will need to write a single python program that given an input file produces a report that reports information about the file.

Your program should have the following methods/functions::

1. 
   

   (20%) main()function that runs the overall program.

   
   
   
   
   1. 
      

      First, you have to ask the user for input usinggetInput()function (see below)

      
      
   
   
   2. 
      

      Then, repeatedly ask user for next command usinggetCommand()function (see below)

      
      
   
   
   3. 
      

      Depending on the command received, either call the function that represents the command

      
      

      (or stop looping if quit was received)

      
      
   
   
   4. 
      

      Note: somewhere in the program, there must be a call tomain()

      
      
   
   
   
   


2. 
   

   (20%) getInput()function that asks the user for an input file.

   
   
   
   
   1. 
      

      The function should repeatedly ask for a file until given a filename

      
      
   
   
   2. 
      

      The function should return a valid file name (test by seeing if the file opens)

      
      
   
   
   
   


3. 
   

   (10%) getCommand()function that returns a command which should be one of the following: a. list

   
   

   b. search c. add
   d. quit

   
   


4. 
   

   (10%) list() functionshould output a list of all records stored in the file

   
   


5. 
   

   (30%) search()function should allow the user to search for a specific item or a list of items and

   
   

   display the records stored in the file that match the query

   
   
   
   
   1. 
      

      The function should take three parameters: name of field to search, value to search for, type

      
      

      of search

      
      
   
   
   2. 
      

      Type of search can be either:equal, notequal, greaterthan, lessthan

      
      
   
   
   3. 
      

      The function should take the three things and produce a list of items that match the given

      
      

      criteria.

      
      
   
   
   
   


6. 
   

   (10%) add()function should allow the user to add a record to the file

   
   

a. The function should ask for each element of the record from the user

Record:
Integer EID

String name String position Integer yos Double salary

Record Format (each record is on a line by itself): EID:name:position:yos:salary