python code

import smtplib
from email.mime.text import MIMEText

from Tkinter import *


fields = 'To', 'Subject', 'Body'
output = {}


def fetch(entries):
    for entry in entries:
        field = entry[0]
        text = entry[1].get()
        output[field] = text


def makeform(root, fields):
    entries = []
    for field in fields:
        row = Frame(root)
        lab = Label(row, width=15, text=field, anchor='w')
        ent = Entry(row)
        row.pack(side=TOP, fill=X, padx=5, pady=5)
        lab.pack(side=LEFT)
        ent.pack(side=RIGHT, expand=YES, fill=X)
        entries.append((field, ent))
    return entries


def sendMail():
    msg = MIMEText(output['Body'])
    msg['Subject'] = output['Subject']
    msg['From'] = """myMail"""
    msg['To'] = output['To']
    username = """my user name"""
    password = """my password"""
    server = smtplib.SMTP('smtp.gmail.com:587')
    server.starttls()
    server.login(username, password)
    server.sendmail("""myMail""", output['To'], msg.as_string())
    server.quit()


if __name__ == '__main__':
    root = Tk()
    ents = makeform(root, fields)
    root.bind('<Return>', (lambda event, e=ents: fetch(e)))

    b1 = Button(root, text='Send', command=sendMail)
    b1.pack(side=LEFT, padx=5, pady=5)
    b2 = Button(root, text='Quit', command=root.quit)
    b2.pack(side=LEFT, padx=5, pady=5)
    root.mainloop()