#1154 python tab bug/no changes bug (3 bugs)

[lucid]

python tabs and spaces are not displayed correctly in the python construct editor. if text looks equally indented with correctly indented text, sometimes it is not. sometimes text which gets no indentation error will get an error when editting other text on a later unrelated line, and when pasted to notepad++, the indentation somehow got changed on the formerly correctly indented text,

pressing tab sometimes indents, usually shifts focus instead

after changing python code, construct will not ask you if you want to save changes on exit.