Being new to Python I am getting a result I do not understand. I have a code that reads in a set of lines from a file, slits up the lines and puts information into a list of class objects. obslist = mpc.Read_Observations(options.in_fname) ; for testobs in obslist: print testobs.printmpc() where the class is defined as class MPC_Observation: def __init__(self,iname,iepoch,ira,idec,imag,iobscode): self.name = iname self.epoch = iepoch self.ra = ira self.dec = idec self.obscode = iobscode self.mag = imag def printmpc(self): if self.mag!="": print "%14s %12.5f %5.2f %6.2f %8.3f %3i" \ % (self.name, self.epoch, self.ra,self.dec,self.mag,self.obscode) else: print "%14s %12.5f %5.2f %6.2f %3i" \ % (self.name, self.epoch, self.ra,self.dec,self.obscode) But when I run the code I get a bunch of lines with None output Albiorix 2005.00000 133.03 17.77 695 None Albiorix 2005.00000 133.03 17.77 695 None Albiorix 2005.00000 133.03 17.77 695 None Albiorix 2005.00000 133.03 17.77 695 None Albiorix 2005.00000 133.01 17.78 695 None I don't understand where these None's are coming from. Anyone care to enlighten me? Cheers Tommy http://homepage.mac.com/tgrav/ "Any intelligent fool can make things bigger, more complex, and more violent. It takes a touch of genius -- and a lot of courage -- to move in the opposite direction" -- Albert Einstein |
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