Debugging eval calls which I've never done

DaveCochran.py

class foo:
    name="string"
    num=-1
    math="string2"

    def __init__(self,name,num,math):
        self.name=name
        self.num=num
        self.math=math

    def __str__(self):
        return f"{self.name}: {self.num}|{self.math}"
    def __repr__(self):
        return f"{self.name}: {self.num}|{self.math}"

content = ['steve:1:blee']

foolist=[]
fooval=-1
foostr=""
lestring = "string"

for line in content:
    fooname=line.split(":")[0]
    if line.split(":")[1].isnumeric():
        fooval=int(line.split(":")[1])
    else:
        foostr=line.split(":")[1]

    
    if fooval != -1:
        if (not False):
            wat = foo(fooname,fooval,"string")
            print(str(wat))
            print(type(wat))
            foolist.append(wat)
            if (False):
                zum = ("foolist.append(foo(%s,%d,%s))" % (fooname,fooval,"string"))
                print(zum)
                print(type(zum))
                print(fooname)
                print(fooval)
        exec("foolist.append(foo(%s,%d,%s))" % ("fooname",fooval,'"lestring"'))
    else:
        eval("foolist.append(foo(%s,%d,%s))" % (fooname,-1,fooval))

print(type(foolist[0]))
print(foolist[0])

comment = """
OUTPUT:
Traceback (most recent call last):
  File "advent21.py", line 42, in 
    eval("foolist.append(foo(%s,%d,%s))" % (fooname,-2,fooval))
  File "", line 1, in 
NameError: name 'steve' is not defined

IDEAL END RESULT:

foolist[0] is a foo-class object named "steve"
"""