Reloading a session into the same module keeps the previous session #498
Description
I'm generating 2 session dumps with
import dill
a = 1234
dill.dump_session('test1.session')
and
import dill
b = 1234
dill.dump_session('test2.session')
Then loading them back into a module sequentially
import types
import dill
mod = types.ModuleType('test')
print(mod.__dict__.get('a', None))
print(mod.__dict__.get('b', None))
dill.load_session('test1.session', main=mod)
print(mod.__dict__.get('a', None))
print(mod.__dict__.get('b', None))
mod = types.ModuleType('test')
print(mod.__dict__.get('a', None))
print(mod.__dict__.get('b', None))
dill.load_session('test2.session', main=mod)
print(mod.__dict__.get('a', None))
print(mod.__dict__.get('b', None))
I get the following output
None # a
None # b
1234 # a
None # b
None # a
None # b
1234 # a
1234 # b
Before the second session file is read, it clearly shows that the mod variable has no a nor b set. But then when reading in the test2.session file it suddenly sets both a and b. But only b was actually dumped into that file.
Is this an expected behavior?
I'd have expected that after the test2.session was loaded, only the b variable to be present