Saving list of lists into another list of list but with changes in python

Super77 :

i have a list like this one :

list1= [['Sarah', 55, 7, 'x'], ['John', 24, 8, 'x']]

and i want to copy it to another list but keeping it as a matrix like that :

list2= [['Sarah', 55.0, 7.0], ['John', 24.0, 8.0]]

so what i want to do is making every number a float and deleting the last element of every sub-list

SiegridBeens :

list1 = [['Sarah', 55, 7, 'x'], ['John', 24, 8, 'x']]

list2 = [[] for x in range(len(list1))]

x = 0

for rp in range(len(list1)):
    #len(list1[rp])-1 for not count the last element for each array 
    for tp in range(len(list1[rp])-1):
        #check the type of item string
        if "str" in str(type(list1[rp][tp])):
            list2[x].append(list1[rp][tp])
        #check the type of item int
        elif "int" in str(type(list1[rp][tp])):
            #convert the item int to float
            td = float(list1[rp][tp])
            list2[x].append(td)

    x += 1

print("List 1 :" + str(list1))
print("List 2 :" + str(list2))

#OUTPUT
#List 1 :[['Sarah', 55, 7, 'x'], ['John', 24, 8, 'x']]
#List 2 :[['Sarah', 55.0, 7.0], ['John', 24.0, 8.0]]

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