I thought that the following sequence gl=0 def gen(x): global gl gl=x yield x
s=gen(1) suspends the generator just before the yield, so after the assignment of s gl becomes 1. Well, no. It is still zero. If I put print "something" before the yield, this doesn't get executed either. *EVERYTHING* from the beginning until the yield gets executed only upon s.next(). Could you tell me please where can I read something in depth about the semantics of generators? I feel a bit lost. Thank you. Jerzy Karczmarczuk -- http://mail.python.org/mailman/listinfo/python-list