The idea of it is to get any name from nombres that start with any letter that is given by padron and save it into nombres_filtrados (which i can't understand) I would really appreciate the help!

    padron = ['A', 'E', 'J', 'T']

    nombres = ['Tamara', 'Marcelo', 'Martin', 'Juan', 'Alberto', 'Exequiel',
               'Alejandro', 'Leonel', 'Antonio', 'Omar', 'Antonia', 'Amalia',
               'Daniela', 'Sofia', 'Celeste', 'Ramon', 'Jorgelina', 'Anabela', "X"]
   
    nombres_filtrados = [x for x in nombres if any(f in x for f in padron)]

    print(nombres_filtrados)

Thanks!

CodePudding user response：

nombres_filtrados Checks each letter in each name against your padron list, really what it should be is:

padron = ['A', 'E', 'J', 'T']
nombres = ['Tamara', 'Marcelo', 'Martin', 'Juan', 'Alberto', 'Exequiel',
       'Alejandro', 'Leonel', 'Antonio', 'Omar', 'Antonia', 'Amalia',
       'Daniela', 'Sofia', 'Celeste', 'Ramon', 'Jorgelina', 'Anabela', "X",'eA']

nombres_filtrados = [x for x in nombres if any(f in x[0] for f in padron)]
print(nombres_filtrados)

Basically what nombres_filtrados is doing is:

padron = ['A', 'E', 'J', 'T']
nombres = ['Tamara', 'Marcelo', 'Martin', 'Juan', 'Alberto', 'Exequiel',
       'Alejandro', 'Leonel', 'Antonio', 'Omar', 'Antonia', 'Amalia',
       'Daniela', 'Sofia', 'Celeste', 'Ramon', 'Jorgelina', 'Anabela', "X",'eA']

nombres_filtrados = [x for x in nombres if any(f in x[0] for f in padron)]


output = []
for name in nombres:        #For Each Name in Nombres
    if name[0] in padron:   #if the First Letter is In Padron
        output.append(name) #Save To Our Output

print(output)

CodePudding user response：

It is useless to test all letters of the names. An efficient method would be to match only the first letter against a set:

[name for name in nombres
 if name[0].upper() in set(padron)]

Output:

['Tamara',
 'Juan',
 'Alberto',
 'Exequiel',
 'Alejandro',
 'Antonio',
 'Antonia',
 'Amalia',
 'Jorgelina',
 'Anabela']