binding events - - binding tags functionality binding events - - reserved port servers tags binhex module bitmapimage widget class - booleanvar class boost python system bound methods callback handlers and defined pymailgui program support recoding with - browsers cookie support displaying cgi context in grail pymailcgi send mail script - testing with urllib request - buffering command pipes and line - output streams button widget class command option functionality - buttons adding - adding in pycalc - deferring calls fixed-size quit button randomly changing images - bytearray string type bytecode files cleaning up - precompiling strings to - bytes string type - - language api standard classes and - embedding interface - index extending interface - getenv function putenv function python comparison python support scanning files for patterns - strop extension module swig tool and - wrapping environment calls - +language - calcgui class calculators (see pycalc programcallable objects defined overview - registering - callback handlers adding user-defined additional protocols binding events bound method callable class object deferring calls - defined lambda - registering objects - reloading dynamically - callbacks adding - arguments versus globals passing data with lambdas - placing on queues - canvas widget class addtag_withtag method basic operations controlling image displays coordinate system create_ method create_polygon method delete method event support - find_closest method freeform graphic support functionality image thumbnails - itemconfig method move method object construction