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Re: A newbie quesiton: local variable in a nested funciton

Newsgroups comp.lang.python
Date 2015-12-26 20:11 -0800
References <d070aa0d-e80f-4efb-a424-351737ddb2fc@googlegroups.com> <mailman.17.1451101449.11925.python-list@python.org> <701dd0e6-a9c1-4aa9-a3a2-6607cd3f3759@googlegroups.com> <mailman.19.1451123395.11925.python-list@python.org> <661a13a1-8084-41ca-b458-297462dc3367@googlegroups.com>
Message-ID <0bf611ba-c4d9-4465-8d61-6a94bcee79a4@googlegroups.com> (permalink)
Subject Re: A newbie quesiton: local variable in a nested funciton
From jfong@ms4.hinet.net

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Last night I noticed that Python does not resolve name in "def" during import, as C does in the compile/link stage, it was deferred until it was referenced (i.e. codes was executed). That's OK for Anyway codes has to be debugged sooner or later. I just have to get used to this style.

But check these codes, it seems not.
-------
x = 1  # a global variable
print(x)

class Test:
    x = 4  # a class attribute
    print(x)
    def func(self):
        print(x)

x1 = Test()
x1.x = 41  # a instance's attribute
x1.func()  # it's 1 but 41 was expect:-(
--------

--Jach

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Thread

A newbie quesiton: local variable in a nested funciton jfong@ms4.hinet.net - 2015-12-25 19:06 -0800
  Re: A newbie quesiton: local variable in a nested funciton Ben Finney <ben+python@benfinney.id.au> - 2015-12-26 14:41 +1100
    Re: A newbie quesiton: local variable in a nested funciton jfong@ms4.hinet.net - 2015-12-26 00:56 -0800
      Re: A newbie quesiton: local variable in a nested funciton Ben Finney <ben+python@benfinney.id.au> - 2015-12-26 20:37 +1100
  Re: A newbie quesiton: local variable in a nested funciton Chris Angelico <rosuav@gmail.com> - 2015-12-26 14:44 +1100
    Re: A newbie quesiton: local variable in a nested funciton jfong@ms4.hinet.net - 2015-12-26 01:07 -0800
      Re: A newbie quesiton: local variable in a nested funciton Chris Angelico <rosuav@gmail.com> - 2015-12-26 20:49 +1100
        Re: A newbie quesiton: local variable in a nested funciton jfong@ms4.hinet.net - 2015-12-26 20:05 -0800
          Re: A newbie quesiton: local variable in a nested funciton jfong@ms4.hinet.net - 2015-12-26 20:11 -0800
            Re: A newbie quesiton: local variable in a nested funciton Chris Angelico <rosuav@gmail.com> - 2015-12-27 17:32 +1100
              Re: A newbie quesiton: local variable in a nested funciton jfong@ms4.hinet.net - 2015-12-27 17:02 -0800
          Re: A newbie quesiton: local variable in a nested funciton Chris Angelico <rosuav@gmail.com> - 2015-12-27 17:22 +1100

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