Capitalize first letter of names in nested loops

[student_of_python]

change line 3 from

name.title()

To

name = name.title()

names=[['peter','jack','bo'],'eva',['christian','joanne',7],'5']
#Make all names in nested loop above with capital first letters, dont make new list but change current list
#elements 7 and '5' should be left as is

for list in names:
    for name in list:
        name = name.title()
        print(name)

print(names)

that does seem to make all but "eva" capital letters and prints: AttributeError: 'int' object has no attribute 'title'

which is probably as the list includes 7

furthermore, I cant print the list afterward. I don't think this for loop actually changes values within the names list?