Include multiple data files with pyinstaller

Question

I need to include a DLL AND a text file in a pyinstaller "onefile" executable. I can add just the DLL but if I try to specify both files, pyinstaller complains. I would rather use the command line options (rather than the spec file) - what's the correct format for multiple files?

http://pyinstaller.readthedocs.io/en/stable/spec-files.html#adding-data-files

http://pyinstaller.readthedocs.io/en/stable/usage.html#options-group-what-to-bundle-where-to-search

Tried a few things, e.g. pyinstaller: error: argument --add-data: invalid add_data_or_binary value: '/C/path1/my.dll;/c/path2/my.txt;.'

Answer 1

The answer was in https://media.readthedocs.org/pdf/pyinstaller/cross-compiling/pyinstaller.pdf which indicates I can simply use the --add-data option multiple times!