(Chilkat2-Python) Transition from MailMan.FetchByMsgnum to MailMan.FetchOne

Provides instructions for replacing deprecated FetchByMsgnum method calls with FetchOne.

Note: This example requires Chilkat v11.0.0 or greater.

Chilkat2 Python Downloads install with pip pip3 install chilkat2 or download... Python Module for Windows, Linux, Alpine Linux, MacOS

import sys
import chilkat2

mailman = chilkat2.MailMan()

# ...
# ...

msgnum = 123

# ------------------------------------------------------------------------
# The FetchByMsgnum method is deprecated:

# emailObj is a CkEmail
emailObj = mailman.FetchByMsgnum(msgnum)
if (mailman.LastMethodSuccess == False):
    print(mailman.LastErrorText)
    sys.exit()

# ...
# ...

# ------------------------------------------------------------------------
# Do the equivalent using FetchOne.
# Your application creates a new, empty Email object which is passed 
# in the last argument and filled upon success.

headerOnly = False
# Irrelevant because we are not downloading headers-only.
numBodyLines = 0

emailOut = chilkat2.Email()
success = mailman.FetchOne(headerOnly,numBodyLines,msgnum,emailOut)
if (success == False):
    print(mailman.LastErrorText)
    sys.exit()