I have a problem with the eval function in python. I have a window in tinker that returns me a string value. I pass them to eval and I get a syntax error. In the name field, enter ‘abc’. Why?

from tkinter import *
from tkinter.messagebox import showerror

fieldnames = ('name', 'age', 'job', 'pay')



def makeWidgets():
    global entries
    window = Tk()
    window.title('People Shelve')
    form = Frame(window)
    form.pack()
    entries = {}
    for (ix, label) in enumerate(('key',) + fieldnames):
        lab = Label(form, text=label)
        ent = Entry(form)
        lab.grid(row=ix, column=0)
        ent.grid(row=ix, column=1)
        entries[label] = ent
    Button(window, text="Update", command=updateRecord).pack(side=LEFT)
    Button(window, text="Quit", command=window.quit).pack(side=RIGHT)
    return window



def updateRecord():
    for field in fieldnames:
        text = entries[field].get()
        eval(text) # ERROR invalid syntax

window = makeWidgets()
window.mainloop()

I want to find out why I’m getting an error. I want this error explained to me.