On Thu, 20 Feb 2014 22:37:59 -0800, Sam wrote: > I need to pass a global variable into a python function. However, the > global variable does not seem to be assigned after the function ends. Is > it because parameters are not passed by reference? How can I get > function parameters to be passed by reference in Python?
You cannot. Python does not support either pass-by-reference or pass-by- value calling conventions. Instead, it supports the same calling convention as Java, Ruby and other modern languages (which confusingly those two languages both call something different), "call by object sharing". To understand more about Python's calling convention, and why neither call-by-reference nor call-by-value are appropriate, please read these articles: https://mail.python.org/pipermail/tutor/2010-December/080505.html http://effbot.org/zone/call-by-object.htm and also see the Wikipedia article: http://en.wikipedia.org/wiki/Evaluation_strategy If you show us a sample of your code, together of a sample of how you expect it to work, we can suggest an alternate way to solve that problem. -- Steven -- https://mail.python.org/mailman/listinfo/python-list
