login() function failed in smtplib with message "argument 1 must be bytes or buffer, not str"

[hdvision]

BPO	6328
Nosy	@bitdancer
Dependencies	bpo-5259: smtplib is broken in Python3
Files	python-shot.png: screen shot of python debugger

^{Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.}

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GitHub fields:

assignee = None
closed_at = <Date 2009-06-23.16:21:49.892>
created_at = <Date 2009-06-23.16:05:25.991>
labels = ['type-bug', 'library']
title = 'login() function failed in smtplib with message "argument 1 must be bytes or buffer, not str"'
updated_at = <Date 2009-06-23.16:21:49.865>
user = 'https://bugs.python.org/hdvision'

bugs.python.org fields:

activity = <Date 2009-06-23.16:21:49.865>
actor = 'r.david.murray'
assignee = 'none'
closed = True
closed_date = <Date 2009-06-23.16:21:49.892>
closer = 'r.david.murray'
components = ['Library (Lib)']
creation = <Date 2009-06-23.16:05:25.991>
creator = 'hdvision'
dependencies = ['5259']
files = ['14342']
hgrepos = []
issue_num = 6328
keywords = []
message_count = 2.0
messages = ['89629', '89631']
nosy_count = 2.0
nosy_names = ['r.david.murray', 'hdvision']
pr_nums = []
priority = 'low'
resolution = 'out of date'
stage = 'resolved'
status = 'closed'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue6328'
versions = ['Python 3.0']

[hdvision]

Hi folks,

I encountered the following error with this Python code snippet. (I ran
it with Python 3.0.1). Judging from the error as shown in IDLE debugger,
the error was buried inside python.

try:
server = smtplib.SMTP(EmailConfig.smtpServerName)
server.set_debuglevel(3)
print(server)
server.login(bytes(EmailConfig.mailUser, encoding='ascii'),
bytes(EmailConfig.mailPass, encoding='ascii'))
print('Login is successful.')
failed = server.sendmail(from_addr, to_addr, text_msg)
except Exception as ex:
print('Error in communicating with SMTP server', ex)
else:
if failed : print('Failed in sending email with following
reason:\n', failed)

---

The output from terminal is:
$ c:/tools/Python30/python send_email.py
<smtplib.SMTP object at 0x00F21990>
send: 'ehlo quad-vision.hua\r\n'
reply: b'250-smtp.mxes.net\r\n'
reply: b'250-PIPELINING\r\n'
reply: b'250-SIZE 400000000\r\n'
reply: b'250-ETRN\r\n'
reply: b'250-STARTTLS\r\n'
reply: b'250-AUTH PLAIN LOGIN\r\n'
reply: b'250-AUTH=PLAIN LOGIN\r\n'
reply: b'250-ENHANCEDSTATUSCODES\r\n'
reply: b'250-8BITMIME\r\n'
reply: b'250 DSN\r\n'
reply: retcode (250); Msg: b'smtp.mxes.net\nPIPELINING\nSIZE
400000000\nETRN\nSTARTTLS\nAUTH PLAIN L
OGIN\nAUTH=PLAIN LOGIN\nENHANCEDSTATUSCODES\n8BITMIME\nDSN'
Error in communicating with SMTP server b2a_base64() argument 1 must be
bytes or buffer, not str

[bitdancer]

This is a duplicate of bpo-5259, and has been fixed in 3.1.