Choir 2

Save all functions into the same file named choir2.py.

A choir has stored the information of its singers in a file. In each line of this file there are three data, separated by the character &: the name, the voice (soprano, alto, tenor or bass)b both str, and a Boolean (bool) showing whether the singer can act as a soloist (True) or not (False). You can download file choir2.txt with an example, which is partially shown here:

Josefina&alto&True
Pepet&bass&False
Josep&tenor&True
Fina&soprano&True

1. Write the function gigs() that takes a name of a file as described (str), a voice (str) and an integer, n, (int) and returns a Boolean (bool) which a value of True if there are at least n singers with the given voice that can act as soloists and False otherwise. Examples:

   >>> gigs('choir2.txt', 'soprano', 3)
   True
   >>> gigs('choir2.txt', 'bass', 2)
   False
   

   Note

   You can download the file with tests test-gigs.txt.

2. Write the function dicc_soloists() that takes a name of a file as described (str), and returns a dictionary (dict), where the key is a voice (str) and the value is a list with those singer’s names (str) with this voice and that can act as soloists. The dictionary must be complete and its lists must be in alphabetical order. Examples:

   >>> d = dicc_soloists('choir2.txt')
   >>> if d!= {'bass': ['Xema'], 'soprano': ['Fina', 'Fineta', 'Pepeta'],
   ... 'tenor': ['Josemari', 'Josep', 'Pep'], 
   ... 'alto': ['Josefina', 'Mariajosep']}:
   ...    print(d)
   

   Note

   You can download the file with tests test-soloists.txt

Solutions

You have some solutions in the file choir2.py