getmail 5.7 and OpenBSD 6.5

I'm having some difficulty getting getmail to work under OpenBSD using nmh on a Thinkpad x220:

getmail version 5.7
Copyright (C) 1998-2012 Charles Cazabon.  Licensed under the GNU GPL version 2.
SimpleIMAPSSLRetriever:[email protected]:993:

Exception: please read docs/BUGS and include the following information in any bug report:

  getmail version 5.7
  Python version 2.7.16 (default, Apr 13 2019, 18:59:49)
[GCC 4.2.1 Compatible OpenBSD Clang 7.0.1 (tags/RELEASE_701/final)]

Unhandled exception follows:
    File "/usr/local/bin/getmail", line 898, in main
    success = go(configs, options.idle)
    File "/usr/local/bin/getmail", line 157, in go
    retriever.initialize(options)
    File "/usr/local/lib/python2.7/site-packages/getmailcore/_retrieverbases.py", line 1709, in initialize
    if o.startswith('[UNAVAILABLE]'):
  AttributeError: 'error' object has no attribute 'startswith'

Please also include configuration information from running getmail
with your normal options plus "--dump".

getmail --verbose --dump:

getmail version 5.7
Copyright (C) 1998-2012 Charles Cazabon.  Licensed under the GNU GPL version 2.
getmail configuration:
  getmail version 5.7
  Python version 2.7.16 (default, Apr 13 2019, 18:59:49) 
[GCC 4.2.1 Compatible OpenBSD Clang 7.0.1 (tags/RELEASE_701/final)]
  retriever:  SimpleIMAPSSLRetriever(ca_certs="None", certfile="None", getmaildir="/home/aalinovi/.getmail/", keyfile="None", mailboxes="('ALL',)", move_on_delete="None", password="*", password_command="()", port="993", record_mailbox="True", server="mail.riseup.net", ssl_cert_hostname="None", ssl_ciphers="None", ssl_fingerprints="()", ssl_version="None", timeout="180", use_cram_md5="False", use_kerberos="False", use_peek="True", use_xoauth2="False", username="aalinovi")
  destination:  MDA_external(allow_root_commands="False", arguments="('+inbox',)", command="rcvstore", group="None", ignore_stderr="False", path="/usr/local/libexec/nmh/rcvstore", unixfrom="False", user="None")
  options:
    delete : False
    delete_after : 0
    delete_bigger_than : 0
    delivered_to : True
    fingerprint : False
    logfile : logfile(filename="~/.getmail/log")
    max_bytes_per_session : 0
    max_message_size : 0
    max_messages_per_session : 0
    message_log : ~/.getmail/log
    message_log_syslog : False
    message_log_verbose : True
    read_all : False
    received : True
    verbose : 1

~/.getmail/getmailrc:

[options]
verbose = 2
read_all = false
delete = false
message_log = ~/.getmail/log
message_log_verbose = true

[retriever]
type=SimpleIMAPSSLRetriever
server = mail.riseup.net
port = 993
username = aalinovi
password = hidden
mailboxes = ALL

[destination]
type = MDA_external
path = /usr/local/libexec/nmh/rcvstore
arguments = ("+inbox", )


From what I see Im guessing the problem has to do with python. However, not being a programmer, I have
no idea how to fix this.
Any help would be appreciated.

Thank you