How do I send a mail via mailx & subprocess?
I am EE, trying to write a script to simplify file checks using Python.
For some reason, our IT will not let me gain access to our SMTP server, and will only allow sending mail via mailx
.
So I've thought of running mailx
from Python and send it, in the same way that it works in my console. Alas, it gives an exception. See Linux log below:
Python 3.1.1 (r311:74480, Dec 8 2009, 22:48:08)
[GCC 3.3.3 (SuSE Linux)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import subprocess
>>> process=subp开发者_Python百科rocess.Popen('echo "This is a test\nHave a loook see\n" | mailx -s "Test Python" mymail@mycomopany.com')
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/depot/Python-3.1.1/lib/python3.1/subprocess.py", line 646, in __init__
errread, errwrite)
File "/depot/Python-3.1.1/lib/python3.1/subprocess.py", line 1146, in _execute_child
raise child_exception
I am a newbie to Python (now migrating from Perl). Any thoughts?
you can use smtplib
import smtplib
# email options
SERVER = "localhost"
FROM = "root@example.com"
TO = ["root"]
SUBJECT = "Alert!"
TEXT = "This message was sent with Python's smtplib."
message = """\
From: %s
To: %s
Subject: %s
%s
""" % (FROM, ", ".join(TO), SUBJECT, TEXT)
server = smtplib.SMTP(SERVER)
server.set_debuglevel(3)
server.sendmail(FROM, TO, message)
server.quit()
If you really want to use subprocess( which i advise against)
import subprocess
import sys
cmd="""echo "test" | mailx -s 'test!' root"""
p=subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE)
output, errors = p.communicate()
print errors,output
You cas use subprocess.call
. Like:
subprocess.call(["mailx", "-s", "\"Test Python\"", "mymail@mycomopany.com"])
Details here
Lior Dagan's code was close to being correct/functional: the error in this approach is a missing shell=True
kwarg
in the call to subprocess.Popen
. Anyone actually considering this approach should be aware that the subprocess
documentation warns that:
Invoking the system shell with shell=True can be a security hazard if combined with untrusted input.
Generally F0RR's and ghostdog74's solutions should be preferred as they are more robust and secure.
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