question about smtplib

[nephish]

Hey there,

i am using the smtplib module in python 2.3

my question is, this works:

server = smtplib.SMTP(localhost)

then server.sendmail(to address, from address, message)
what i want to know is, how does the connection work?

when i do server.sendmail, does it connect then ? or did it connect
when
i made the object ?

the reason i need to know is i need to send several emails out at once
and would be best to only connect once, i think.

i know that i can call server.close(), i just dont know when it was
opened.
thanks

[Steve Holden]

ne*****@xit.net wrote:

Hey there,

i am using the smtplib module in python 2.3

my question is, this works:

server = smtplib.SMTP(localhost)

then server.sendmail(to address, from address, message)
what i want to know is, how does the connection work?

when i do server.sendmail, does it connect then ? or did it connect
when
i made the object ?

the reason i need to know is i need to send several emails out at once
and would be best to only connect once, i think.

i know that i can call server.close(), i just dont know when it was
opened.
thanks

If you provide the host name the server is connected immediately. You
can use that connection to send several emails, terminating the
connection when you call the object's quit() method.

regards
Steve
--
Steve Holden [phone] [phone]
Holden Web LLC www.holdenweb.com
PyCon TX 2006 www.python.org/pycon/

[nephish]

cool. so this line
server = smtplib.SMTP(localhost)
is when i connect ?

i had my syntax wrong anyway, i was using server.close()
instead of server.quit()

thanks much

[Fredrik Lundh]

ne*****@xit.net wrote:

cool. so this line
server = smtplib.SMTP(localhost)
is when i connect ?

http://www.python.org/doc/lib/module-smtplib.html

"If the optional host and port parameters are given, the
SMTP connect() method is called with those parameters
during initialization."

"For normal use, you should only require the initialization/
connect, sendmail(), and quit() methods. An example is
included below."

</F>

[Tim Roberts]

ne*****@xit.net wrote:

cool. so this line
server = smtplib.SMTP(localhost)
is when i connect ?

Use the source, Luke. Source code for every standard module is included on
your hard disk. If you look in the __init__ for "class SMTP", your
question will be answered.
--
- Tim Roberts, ti**@probo.com
Providenza & Boekelheide, Inc.

[Piet van Oostrum]

>>>>> Tim Roberts <ti**@probo.com> (TR) wrote:

TR> ne*****@xit.net wrote:

cool. so this line
server = smtplib.SMTP(localhost)
is when i connect ?

TR> Use the source, Luke. Source code for every standard module is included on
TR> your hard disk. If you look in the __init__ for "class SMTP", your
TR> question will be answered.

The documentation should be the ultimate reference for the API. The source
is just implementation detail which may change in the future.
--
Piet van Oostrum <pi**@cs.uu.nl>
URL: http://www.cs.uu.nl/~piet [PGP 8DAE142BE17999C4]
Private email: pi**@vanoostrum.org

[nephish]

thanks for all the help,
got it working ok now, connecting once, sending many.

thanks for the link too.

cheers,
sk

[Tim Roberts]

Piet van Oostrum <pi**@cs.uu.nl> wrote:

>> Tim Roberts <ti**@probo.com> (TR) wrote:

TR> ne*****@xit.net wrote:

cool. so this line
server = smtplib.SMTP(localhost)
is when i connect ?

TR> Use the source, Luke. Source code for every standard module is included on
TR> your hard disk. If you look in the __init__ for "class SMTP", your
TR> question will be answered.

The documentation should be the ultimate reference for the API. The source
is just implementation detail which may change in the future.

I won't argue with that, but the question of "exactly when does the
connection occur" is in itself an implementation detail. I wouldn't expect
it to be answered in the documentation.
--
- Tim Roberts, ti**@probo.com
Providenza & Boekelheide, Inc.