functions for - overview - searching in - selecting individual characters in - upper(function using special characters - as viewed by computers strip(function structured data structured query language (sql) subtraction operator ) sudo command suse linux swapcase(function switch statements - switchescommand-line - syntax concise errors in highlighting - sys exit(command sys path variable * \ (tab character) tcl (tool command language) ternary operator testing +applications installation - production servers and using pyunit - third-party libraries - throwing exceptions - see also exceptionshandling time(function tiobe web site title(function tkinter library - todo list management tool command language (tcl) tools bug-tracking sites ipython isort komodo edit mercurial version control - pdoc - pydbgr pyinstaller - pyunit - roundup issue tracker - virtualenv - topics keyword traceback trigger try block tuples defined hierarchy of - sequence types using - twisted matrix type(method typographical characters * \ escape sequence - option uac (user access control) ubuntu unary operators defined listing of precedence uncommenting lines unicode characters unit testing - universal serial bus (usb) unstructured data