如何在Python中列出我自己定义的所有变量，不包括导入的变量？

Question

I know there are some ways to list all variable, such as locals(), globals(), dir(). But they also list the variables imported from other modules, and make a very long list, which is hard to find variables defined by myself. So how should I list all variables defined by myself, better with their values?

Here is an example:

import numpy
a=1
b=2
dir()

Then the result is:

['In',
 'Out',
 '_',
 '_1',
 '_2',
 '_3',
 '_4',
 '__',
 '___',
 '__builtin__',
 '__builtins__',
 '__doc__',
 '__name__',
 '__package__',
 '_dh',
 '_i',
 '_i1',
 '_i2',
 '_i3',
 '_i4',
 '_i5',
 '_ih',
 '_ii',
 '_iii',
 '_oh',
 '_sh',
 'a',
 'b',
 'exit',
 'get_ipython',
 'numpy',
 'quit']

But I only want to see variables defined in this module, ie, a and b. How should I do that?

Answer 1

Save the result of locals() at the top of your module, after any imports.

Any new items that subsequently show up in locals() must have been defined by you.