Hi, We are distributing our Python application as the short main script (.py file) and a set of modules compiled to the .pyc files. So far, we have always treated .pyc files as portable between platforms, but recently we have discovered an annoying problem. In a module, there is the following code fragment:
Deg2Rad = math.pi/180.0 angleEPS = 0.5 angle0B = angleEPS*Deg2Rad which calculates 'angle0B' as the angle of a half of a degree, converted to radians. The module has been compiled on an English Windows XP machine, and then tested on a Polish Windows XP workstation. What was our astonishment, when various exceptions started to be raised on a test machine (no problem on the original English-version Windows XP). We have traced them to the fact, that both angleEPS and angle0B were found to be ZERO (!!!), whereas in reality, angle0B is about 0.008. And this all happened silently, without any error during the import of the module! What's the reason of this error? I start thinking, that it may be related to the fact, that the decimal point on the Enlish Windows XP is the '.' character, and on the Polish one - ','. Is there a good method to avoid this kind of problems? How to make such distributed modules really portable? Thanks in advance -- Tomasz Lisowski -- http://mail.python.org/mailman/listinfo/python-list