Postgres Connection prints "encoding name too long"

[JonnyWaffles]

Description

When connecting to a Postgres 13 or 14 server in Python repl the following message "encoding name too long" is printed

>>> import turbodbc
>>> kwargs = {'server': 'postgres', 'port': 5432, 'database': 'airflow', 'uid': 'airflow', 'password': 'airflow'}
>>> c = turbodbc.connect(dsn="airflow", **kwargs)
encoding name too long
>>> 

My demo odbc.ini is as follows

[airflow]
Driver=/usr/lib/x86_64-linux-gnu/odbc/psqlodbcw.so
Description=PostgreSQL DSN
ServerName=postgres
Port=5432
Database=airflow

I installed all the necessary packages in a bionic image

RUN apt-get install -y \
    python3.8-dev \
    unixodbc \
    unixodbc-dev \
    libboost-all-dev \
    odbc-postgresq

I tried both postgres server 13 and 14 images but the result was the same. In order to isolate whether the issue is specific to turbodbc I tried creating an isql session.

root@6430975942a8:/app# isql -v airflow airflow airflow
+---------------------------------------+
| Connected!                            |
|                                       |
| sql-statement                         |
| help [tablename]                      |
| quit                                  |
|                                       |
+---------------------------------------+

And I don't see anything regarding encoding in the standard out. I also tried changing some of the default options, but the warning still is printed.

>>> opts = make_options(prefer_unicode=True)
>>> c = turbodbc.connect(dsn="airflow", turbodbc_options=opts, **kwargs)
encoding name too long

I tried the settings recommended in your readme and still see the same.

[airflow]
Driver=/usr/lib/x86_64-linux-gnu/odbc/psqlodbcw.so
Description=PostgreSQL DSN
ServerName=postgres
Port=5432
Database=airflow
Protocol= 7.4
UseDeclareFetch=1
Fetch=10000
UseServerSidePrepare=1
BoolsAsChar=0
ConnSettings=set time zone 'UTC';

Any ideas why I am seeing this warning inside Python? I am hesitant to use the package because I don't know any side effects from the warning. Thanks for all your help!