In python 3.6, I'm trying to code a scientific calculator. I don't know why sin is not working. It is giving some syntax error! Does anyone help me?
from tkinter import *
from tkinter import ttk
from math import*
class Calculator:
calc_value = 0.0
div_trigger = False
mult_trigger = False
add_trigger = False
sub_trigger = False
asin_trigger = False
def button_press(self, value):
entry_val = self.number_entry.get()
entry_val += value
self.number_entry.delete(0, "end")
self.number_entry.insert(0, entry_val)
def isfloat(self, str_val):
try:
float(str_val)
return True
except ValueError:
return False
def math_button_press(self, value):
if self.isfloat(str(self.number_entry.get())):
self.add_trigger = False
self.sub_trigger = False
self.mult_trigger = False
self.div_trigger = False
self.asin_trigger = False
self.calc_value = float(self.entry_value.get())
if value == "/":
print("/ Pressed")
self.div_trigger = True
elif value == "*":
print("* Pressed")
self.mult_trigger = True
elif value == "+":
print("+ Pressed")
self.add_trigger = True
elif value == "sin":
print("sin Pressed")
self.asin_trigger = True
else:
print("- Pressed")
self.sub_trigger = True
self.number_entry.delete(0, "end")
def equal_button_press(self):
if self.add_trigger or self.sub_trigger or self.mult_trigger or self.div_trigger or self.asin_trigger:
if self.add_trigger:
solution = self.calc_value + float(self.entry_value.get())
elif self.sub_trigger:
solution = self.calc_value - float(self.entry_value.get())
elif self.mult_trigger:
solution = self.calc_value * float(self.entry_value.get())
elif self.asin_trigger:
solution = self.calc_value sin float(self.entry_value.get())
else:
solution = self.calc_value / float(self.entry_value.get())
print(self.calc_value, " ", float(self.entry_value.get()),
" ", solution)
#
self.number_entry.delete(0, "end")
self.number_entry.insert(0, solution)
def __init__(self, root):
self.entry_value = StringVar(root, value="")
root.title("Calculator")
root.geometry("860x440")
root.resizable(width=False, height=False)
style = ttk.Style()
style.configure("TButton",
font="Serif 15",
padding=10)
style.configure("TEntry",
font="Serif 18",
padding=10)
# Create the text entry box
self.number_entry = ttk.Entry(root,
textvariable=self.entry_value, width=50)
self.number_entry.grid(row=0, columnspan=4)
# ----- 1st Row -----
self.button7 = ttk.Button(root, text="7", command=lambda: self.button_press('7')).grid(row=1, column=0)
self.button8 = ttk.Button(root, text="8", command=lambda: self.button_press('8')).grid(row=1, column=1)
self.button9 = ttk.Button(root, text="9", command=lambda: self.button_press('9')).grid(row=1, column=2)
self.button_div = ttk.Button(root, text="/", command=lambda: self.math_button_press('/')).grid(row=1, column=3)
# ----- 2nd Row -----
self.button4 = ttk.Button(root, text="4", command=lambda: self.button_press('4')).grid(row=2, column=0)
self.button5 = ttk.Button(root, text="5", command=lambda: self.button_press('5')).grid(row=2, column=1)
self.button6 = ttk.Button(root, text="6", command=lambda: self.button_press('6')).grid(row=2, column=2)
self.button_mult = ttk.Button(root, text="*", command=lambda: self.math_button_press('*')).grid(row=2, column=3)
# ----- 3rd Row -----
self.button1 = ttk.Button(root, text="1", command=lambda: self.button_press('1')).grid(row=3, column=0)
self.button2 = ttk.Button(root, text="2", command=lambda: self.button_press('2')).grid(row=3, column=1)
self.button3 = ttk.Button(root, text="3", command=lambda: self.button_press('3')).grid(row=3, column=2)
self.button_add = ttk.Button(root, text="+", command=lambda: self.math_button_press('+')).grid(row=3, column=3)
# ----- 4th Row -----
self.button_clear = ttk.Button(root, text="AC", command=lambda: self.button_press('AC')).grid(row=4, column=0)
self.button0 = ttk.Button(root, text="0", command=lambda: self.button_press('0')).grid(row=4, column=1)
self.button_equal = ttk.Button(root, text="=", command=lambda: self.equal_button_press()).grid(row=4, column=2)
self.button_sub = ttk.Button(root, text="-", command=lambda: self.math_button_press('-')).grid(row=4, column=3)
#------- 5th Row -------
self.button_asin = ttk.Button(root, text="sin", command=lambda: self.math_button_press('sin')).grid(row=5, column=0)
root = Tk()
calc = Calculator(root)
root.mainloop()
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