You need free and private? The price is low -- if this is a business why not pay? If not a business, why private?
it's not business it's like a school project, so no money :D
There is another charting library called pygal which is great. It can produce output to .svg file format or .png. You could distribute the files which will display in a browser. Or you could build them into web pages if you are so inclined to build a website. It seems that isn't what you want to do. You could also upload images to some free image site. Photobucket supports .png images. pygal can create .png images
ok thanks. -- https://mail.python.org/mailman/listinfo/python-list