Cannot handle data with space

[Nargonath]

I'm not sure whether that's really the cause of the error to be honest. I installed your CLI and tried to import the list of french postal codes from CSV file but I get an error on the first line. Here is my command:
DSIO_KEY_FILE=./service-account.json DSIO_PROJECT_ID=my-project-id dsio upsert ~/Downloads/insee.csv -k postalCodes

The CSV file is: https://raw.githubusercontent.com/Rudloff/french-postal-codes-api/master/insee.csv.

I'm on OSX 10.14.2. Here is the error message I get:

The CSV doesn't seem to be misformatted so I don't see what could be the problem.

Hope it helps to find if there is something to be fixed on your end.