List user defined variables, python

Question

I am trying to iterate through the variables set in a python script. I came across the following:

Enumerate or list all variables in a program of [your favorite lang

Answer 1

I wanted something more along the lines of matlab 'whos', so I baked this up: gist here

import __main__
def whos(lss):
 fil = __main__.__file__
 thisthinghere = open(fil).read().split("\n")
 vs = []
 for l in thisthinghere:
    if l.find("=") > -1:
        vs.append(l.split("=")[0].strip())
 keys = lss.keys()
 out = {}
 for v in vs:
    try: 
        out[v] = lss[v]
    except:
        "not in list"
 keys = out.keys()
 keys.sort()
 for k in keys:
    val = str(out[k])
    if len (val) > 10:
        if val[-1] == ")":val = val[0:10]+"..."+val[-10:]
        elif val[-1] == "]" :val = val[0:10]+"..."+val[-10:]
        else: val = val[0:10]
    print k,":",val

 return out

#import into your script and call with whos(locals())

it seems to work. it will print the variable space, and it returns it as a dictionary for easy pickling/jsoning.