- Most impressed by migration: just needed to hook up my time machine disk to the new machine in in 2 hours my WHOLE computer was transplanted onto the new mac, including applications and frameworks.
- When I went to run eclipse (Helios) I was asked to install java runtime, which the OS installer found and installed by itself.
- The fast login switching, not so useful for single user laptops and also takes up menubar space with your name can be removed from system preferences (here).
- Spaces threw me: from here, we see that the way to add new spaces is to go into misson control (middle click) and then move the pointer to the top right hand corner to add a new desktop.
- To use the existing time machine backup (so you keep your history etc), however, all the files seem to be copied over afresh - so you get a new snapshot which uses a lot of space - the first new backup is not incremental.
- The screen looks different - the colors are brighter - but perhaps my old macbook's lcd was just fading.
- Two new bangla input methods are available and built in, though I am yet to try them properly.
Python's context managers are a very neat way of handling code that needs a teardown once you are done. Python objects have do have a destructor method ( __del__ ) called right before the last instance of the object is about to be destroyed. You can do a teardown there. However there is a lot of fine print to the __del__ method. A cleaner way of doing tear-downs is through Python's context manager , manifested as the with keyword. class CrushMe: def __init__(self): self.f = open('test.txt', 'w') def foo(self, a, b): self.f.write(str(a - b)) def __enter__(self): return self def __exit__(self, exc_type, exc_val, exc_tb): self.f.close() return True with CrushMe() as c: c.foo(2, 3) One thing that is important, and that got me just now, is error handling. I made the mistake of ignoring all those 'junk' arguments ( exc_type, exc_val, exc_tb ). I just skimmed the docs and what popped out is that you need to return True or...
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