def calc_easter(year):
    """returns the date of Easter Sunday of the given yyyy year"""
    y = year
    # golden year - 1
    g = y % 19
    # offset
    e = 0
    # century
    c = y/100
    # h is (23 - Epact) mod 30
    h = (c-c/4-(8*c+13)/25+19*g+15)%30
    # number of days from March 21 to Paschal Full Moon
    i = h-(h/28)*(1-(h/28)*(29/(h+1))*((21-g)/11))
    # weekday for Paschal Full Moon (0=Sunday)
    j = (y+y/4+i+2-c+c/4)%7
    # number of days from March 21 to Sunday on or before Paschal Full Moon
    # p can be from -6 to 28
    p = i-j+e
    d = 1+(p+27+(p+6)/40)%31
    m = 3+(p+26)/30
    # returns (month, day, year) tuple of Easter Sunday
    return (m, d, y)

# a dictionary of {food_name:[amount, calories], ...}
food = {
"pastrami": ["2 oz", 170],
"meatloaf": ["3 oz", 315],
"veal": ["3.5 oz", 190],
"beef": ["2 oz", 310],
"venison": ["4 oz", 225],
"potato": ["8 oz", 100],
"spinach": ["8 oz", 45],
"tomato": ["8 oz", 45],
"egg plant": ["3.5 oz", 25],
"cauliflower": ["8 oz", 35],
"butter": ["1 oz", 200],
"cheddar": ["1 oz", 115],
"swiss": ["1 oz", 105],
"egg": ["2 oz", 80]
}

# the start of a small text editor with file load and save menu
# notice that the wx.TextCtrl() surface has already some advanced
# features: 
# you can select text, right click to cut, copy and paste etc.
 
import os
import wx
 
# pick unique ID values
ID_ABOUT = 101
ID_LOAD = 102
ID_SAVE = 103
ID_EXIT = 110
 
class MyFrame(wx.Frame):
    def __init__(self, parent, id, title):
        wx.Frame.__init__(self, parent, wx.ID_ANY, title, size = (500, 300))
        self.control = wx.TextCtrl(self, 1, style=wx.TE_MULTILINE)
        # statusBar at the bottom of the window
        self.CreateStatusBar() 
        # set up the menu
        filemenu= wx.Menu()
        filemenu.Append(ID_ABOUT, "&About"," Information about this program")
        filemenu.Append(ID_LOAD,"File&Load", " Load a text file")
        filemenu.Append(ID_SAVE,"File&Save", " Save a text file")
        filemenu.AppendSeparator()
        filemenu.Append(ID_EXIT,"E&xit"," Terminate the program")
        # create the menubar
        menuBar = wx.MenuBar()
        # adding the "filemenu" to the MenuBar
        menuBar.Append(filemenu,"&File")
        # adding the MenuBar to the Frame content 
        self.SetMenuBar(menuBar)  
        # attach the menu-event ID_ABOUT to the method self.OnAbout
        wx.EVT_MENU(self, ID_ABOUT, self.OnAbout)
        # attach the menu-event ID_OPEN to the method self.OnOpen
        wx.EVT_MENU(self, ID_LOAD, self.OnLoad)
        # attach the menu-event ID_SAVE to the method self.OnSave
        wx.EVT_MENU(self, ID_SAVE, self.OnSave)
        # attach the menu-event ID_EXIT to the method self.OnExit
        wx.EVT_MENU(self, ID_EXIT, self.OnExit)
        # display the frame   
        self.Show(True)
 
    def OnAbout(self, e):
        """ the about box """
        about = wx.MessageDialog( self, " A very simple editor \n"
            " using the wxPython GUI toolkit", "About Simple Editor", wx.OK)
        about.ShowModal()
        about.Destroy()
 
    def OnLoad(self, e):
        """ open a file"""
        self.dirname = ''
        dlg = wx.FileDialog(self, "Choose a file to load", 
            self.dirname, "", "*.*", wx.OPEN)
        if dlg.ShowModal() == wx.ID_OK:
            self.filename = dlg.GetFilename()
            self.dirname = dlg.GetDirectory()
            f = open(os.path.join(self.dirname,self.filename),'r')
            self.control.SetValue(f.read())
            f.close()
        dlg.Destroy()
 
    def OnSave(self, e):
        """ Save a file"""
        self.dirname = ''
        dlg = wx.FileDialog(self, "Choose or create a file to save to", 
            self.dirname, "", "*.*", wx.SAVE)
        if dlg.ShowModal() == wx.ID_OK:
            self.filename = dlg.GetFilename()
            self.dirname = dlg.GetDirectory()
            f = open(os.path.join(self.dirname,self.filename),'w')
            f.write(self.control.GetValue())
            f.close()
        dlg.Destroy()
 
    def OnExit(self, e):
        self.Close(True)
 
 
app = wx.PySimpleApp()
frame = MyFrame(None, -1, "A Simple Editor (click on File for menu)")
app.MainLoop()

print max(max('hello', 'world'))

print [1] * 5

q = zip(range(3), 'abc')
t1, t2 = zip(*q)
print q
print t1
print t2

# show mouse position as mouse is moved and create a hot-spot
 
import Tkinter as tk
 
root = tk.Tk()
 
def showxy(event):
    xm = event.x
    ym = event.y
    str1 = "mouse at x=%d  y=%d" % (xm, ym)
    root.title(str1)
    # switch color to red if mouse enters a set location range (hot-spot)
    x = 100
    y = 100
    delta = 10  # range around center x,y
    if abs(xm - x) < delta and abs(ym - y) < delta:
        frame.config(bg='red')
    else:
        frame.config(bg='yellow')
 
 
frame = tk.Frame(root, bg= 'yellow', width=300, height=200)
frame.bind("<Motion>", showxy)
frame.pack()
 
root.mainloop()