Change referenced variable value
#//File: small.py
x = 1
y = [1, 2]
#//////////////////////////////////////////////////////////////////////////
#//Main1.py
from small import x, y # copy two names out
x = 42 # changes local x only
y[0] = 42 # changes shared mutable in-place
#//////////////////////////////////////////////////////////////////////////
#//Main2.py
import small # get module name (from doesn't)
print small.x # small's x is not my x
print small.y # but we share a changed mutable
#//////////////////////////////////////////////////////////////////////////
#//Main3.py
from small import x, y # copy two names out
print x = 42 # changes my x only
#//////////////////////////////////////////////////////////////////////////
#//Main4.py
import small # get module name
print small.x = 42 # changes x in other module
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