Eval Fehler in Python mit Trig Werten

Question

Ich entwerfe einen Rechner mit Tkinter. Bevor ich meinem Code Triggerfunktionen hinzugefügt habe, funktionierte die Eval-Funktion einwandfrei. Allerdings habe ich entdeckt, dass es nicht für die trig-Werte funktioniert, die ich ihm gebe. Verwende ich die Eval-Funktion falsch oder funktioniert sie nicht für Trigger-Werte? Die Funktion eval wird in meiner equalButtonFunction in Zeile 47 verwendet. Wenn ich es falsch benutze, können Sie mir sagen, wie ich es beheben kann, oder wenn eval nicht für trig funktioniert, könnten Sie einen alternativen Weg dazu vorschlagen? Vielen Dank!

from __future__ import division 
from Tkinter import * 
import math 

main = Tk() 
main.title("Calculator") 
main.geometry("375x550") 

entry = Text(main) 
entry.configure(width=17,height=1) 
entry.place(x=13, y=5) 
entry.config(font=("Courier", 25)) 

def oneButtonFunction(event): 
    entry.insert(END, '1') 
def twoButtonFunction(event): 
    entry.insert(END, '2') 
def threeButtonFunction(event): 
    entry.insert(END, '3') 
def fourButtonFunction(event): 
    entry.insert(END, '4') 
def fiveButtonFunction(event): 
    entry.insert(END, '5') 
def sixButtonFunction(event): 
    entry.insert(END, '6') 
def sevenButtonFunction(event): 
    entry.insert(END, '7') 
def eightButtonFunction(event): 
    entry.insert(END, '8') 
def nineButtonFunction(event): 
    entry.insert(END, '9') 
def zeroButtonFunction(event): 
    entry.insert(END, '0') 
def addButtonFunction(event): 
    entry.insert(END, '+') 
def subButtonFunction(event): 
    entry.insert(END, '-') 
def multButtonFunction(event): 
    entry.insert(END, '*') 
def divButtonFunction(event): 
    entry.insert(END, '/') 
def decimalButtonFunction(event): 
    entry.insert(END, '.') 
def equalButtonFunction(event): 
    x = entry.get("1.0", "end-1c") 
    entry.delete("1.0", END) 
    entry.insert(END, eval(x))#causes error for trig function 

def clearButtonFunction(event): 
    entry.delete("1.0", END) 
def parentheses1ButtonFuction(event): 
    entry.insert(END, '(') 
def parentheses2ButtonFuction(event): 
    entry.insert(END, ')') 
def trigButtonFunction(event): 
    sinButton.place(x=280, y=50) 
    cosButton.place(x=280, y=150) 
    tanButton.place(x=280, y=250) 
    backButton.place(x=280, y=450) 
def sinButtonFunction(event): 
    entry.insert(END, 'sin(') 
def cosButtonFunction(event): 
    entry.insert(END, 'cos(') 
def tanButtonFunction(event): 
    entry.insert(END, 'tan(') 
def backButtonFunction(event): 
    sinButton.place_forget() 
    cosButton.place_forget() 
    tanButton.place_forget() 
    backButton.place_forget() 

oneButton = Button(main, text="1", width=10, height=5) 
oneButton.place(x=10, y=50) 
oneButton.bind('<Button-1>', oneButtonFunction) 

twoButton = Button(main, text="2", width=10, height=5) 
twoButton.place(x=100, y=50) 
twoButton.bind('<Button-1>', twoButtonFunction) 

threeButton = Button(main, text="3", width=10, height=5) 
threeButton.place(x=190, y=50) 
threeButton.bind('<Button-1>', threeButtonFunction) 

fourButton = Button(main, text="4", width=10, height=5) 
fourButton.place(x=10, y=150) 
fourButton.bind('<Button-1>', fourButtonFunction) 

fiveButton = Button(main, text="5", width=10, height=5) 
fiveButton.place(x=100, y=150) 
fiveButton.bind('<Button-1>', fiveButtonFunction) 

sixButton = Button(main, text="6", width=10, height=5) 
sixButton.place(x=190, y=150) 
sixButton.bind('<Button-1>', sixButtonFunction) 

sevenButton = Button(main, text="7", width=10, height=5) 
sevenButton.place(x=10, y=250) 
sevenButton.bind('<Button-1>', sevenButtonFunction) 

eightButton = Button(main, text="8", width=10, height=5) 
eightButton.place(x=100, y=250) 
eightButton.bind('<Button-1>', eightButtonFunction) 

nineButton = Button(main, text="9", width=10, height=5) 
nineButton.place(x=190, y=250) 
nineButton.bind('<Button-1>', nineButtonFunction) 

zeroButton = Button(main, text="0", width=10, height=5) 
zeroButton.place(x=100, y=350) 
zeroButton.bind('<Button-1>', zeroButtonFunction) 

decimalButton = Button(main, text=".", width=10, height=5) 
decimalButton.place(x=10, y=350) 
decimalButton.bind('<Button-1>', decimalButtonFunction) 

equalButton = Button(main, text="=", width=10, height=5) 
equalButton.place(x=190, y=350) 
equalButton.bind('<Button-1>', equalButtonFunction) 

addButton = Button(main, text="+", width=10, height=5) 
addButton.place(x=280, y=50) 
addButton.bind('<Button-1>', addButtonFunction) 

subButton = Button(main, text="-", width=10, height=5) 
subButton.place(x=280, y=150) 
subButton.bind('<Button-1>', subButtonFunction) 

multButton = Button(main, text="X", width=10, height=5) 
multButton.place(x=280, y=250) 
multButton.bind('<Button-1>', multButtonFunction) 

divButton = Button(main, text="/", width=10, height=5) 
divButton.place(x=280, y=350) 
divButton.bind('<Button-1>', divButtonFunction) 

clearButton = Button(main, text="Clear", width=10, height=5) 
clearButton.place(x=10, y=450) 
clearButton.bind('<Button-1>', clearButtonFunction) 

parentheses1Button = Button(main, text="(", width=10, height=5) 
parentheses1Button.place(x=100, y=450) 
parentheses1Button.bind('<Button-1>', parentheses1ButtonFuction) 

parentheses2Button = Button(main, text=")", width=10, height=5) 
parentheses2Button.place(x=190, y=450) 
parentheses2Button.bind('<Button-1>', parentheses2ButtonFuction) 

trigButton = Button(main, text="Trig", width=10, height=5) 
trigButton.place(x=280, y=450) 
trigButton.bind('<Button-1>', trigButtonFunction) 

sinButton = Button(main, text="Sin", width=10, height=5) 
sinButton.bind('<Button-1>', sinButtonFunction) 

cosButton = Button(main, text="Cos", width=10, height=5) 
cosButton.bind('<Button-1>', cosButtonFunction) 

tanButton = Button(main, text="Tan", width=10, height=5) 
tanButton.bind('<Button-1>', tanButtonFunction) 

backButton = Button(main, text="Back", width=10, height=5) 
backButton.bind('<Button-1>', backButtonFunction) 

main.mainloop() 

Answer 1

def cos(x): 
    return math.cos(x) 
def sin(x): 
    return math.sin(x) 
def tan(x): 
    return math.tan(x) 

oder als Eric erwähnt

from math import sin, cos, tan