Error in my code?

[ebolisa]

Hi,

The following code works, but if I define it, it fails. Where's my error?
TIA

import sys

mailScript = "C:\SharedFiles\Python\practice\mailTest.py"

password = "mypass"

script_descriptor = open(mailScript)
a_script = script_descriptor.read()

sys.argv = ["", password, "[email protected]", "subject", "hello body_text"]
exec(a_script)

script_descriptor.close()

import sys


def main():
    # password mailto subject bodyText
    mailScript = "C:\SharedFiles\Python\practice\mailTest.py"

    PASSWORD = "mypass"

    script_descriptor = open(mailScript)
    a_script = script_descriptor.read()

    sys.argv = ["", PASSWORD, "[email protected]", "subject", "hello body_text"]
    exec(a_script)

    script_descriptor.close()


main()

import smtplib, sys
from email.mime.text import MIMEText


def main(a, b, c, d):
    USERNAME = "[email protected]"
    PASSWORD = sys.argv[1]
    MAILTO = sys.argv[2]

    subject = sys.argv[3]
    bodyText = sys.argv[4]

    msg = MIMEText(bodyText)
    msg['Subject'] = subject
    msg['From'] = USERNAME
    msg['To'] = MAILTO

    server = smtplib.SMTP('smtp.gmail.com:587')
    server.ehlo_or_helo_if_needed()
    server.starttls()
    server.ehlo_or_helo_if_needed()
    server.login(USERNAME, PASSWORD)
    server.sendmail(USERNAME, MAILTO, msg.as_string())
    server.quit()


if __name__ == "__main__":
    a = sys.argv[1]
    b = sys.argv[2]
    c = sys.argv[3]
    d = sys.argv[4]

    main(a, b, c, d)

Error:
Traceback (most recent call last):
  File "C:\SharedFiles\Python\practice\test.py", line 19, in <module>
    main()
  File "C:\SharedFiles\Python\practice\test.py", line 14, in main
    exec(a_script)
  File "<string>", line 33, in <module>
  File "<string>", line 13, in main
NameError: name 'MIMEText' is not defined

Process finished with exit code 1