You can manage your photos in Picasa Web without opening a browser and without installing the Wine-compatible Picasa Photo Editor using Picapy - a python-written file browser for Picasa Web Albums.
Picapy works as a file manager. After logging in - which you will be prompted for when you first start - you will see a window containing a list of Picasa web albums. Here you can add, edit or delete selected folders. To change or delete multiple folders, use CTRL + Click.

Entry to the folder - by double-clicking. Inside the images are presented as thumbnails. As with folders, you can edit, organize, add and delete photos as you see fit. With a right click on the image, you can access the copy functions.
')

Double-clicking on an image opens it for viewing in your own Picapy image viewing window.

It depresses that there is no navigation in viewing images. You will need to manually click on each photo you want to view.
To exit the folder, use the '^' button on the right.

To upload an image / images, you must first enter or create a folder in which you want to add files. By clicking the "+" button on the right, a file selection window will open, where you need to select an image and click "Download."
Installation
Picapy is available for Ubuntu 10.04, 10.10 and 11.04. To install using the terminal, enter the following commands:
sudo add-apt-repository ppa:atareao/atareao
sudo apt-get update && sudo apt-get install picapy
In addition, he picapy is available at @
launchpad.net/picapy