[Pydev-users] [Users] many undefined variable errors

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The following forum message was posted by hombre11 at http://sourceforge.net/projects/pydev/forums/forum/293649/topic/4954138:

hello,  

I just firstly use eclipse in my mac platform.  And once I write python program,
there are many undefined variable errors. But I can run it all right.

sample:

print len("hello world")

undefined variable: len

.......

Thanks for your any advice.