I want to save all the variables in my current python environment. It seems one option is to use the 'pickle' module. However, I don't want to do this for 2 reasons:
pickle.dump()
for each variablepickle.load()
to retrieve each variable.I am looking for some command which would save the entire session, so that when I load this saved session, all my variables are restored. Is this possible?
Edit: I guess I don't mind calling pickle.dump()
for each variable that I would like to save, but remembering the exact order in which the variables were saved seems like a big restriction. I want to avoid that.
If you use shelve, you do not have to remember the order in which the objects are pickled, since shelve
gives you a dictionary-like object:
To shelve your work:
import shelve
T='Hiya'
val=[1,2,3]
filename='/tmp/shelve.out'
my_shelf = shelve.open(filename,'n') # 'n' for new
for key in dir():
try:
my_shelf[key] = globals()[key]
except TypeError:
#
# __builtins__, my_shelf, and imported modules can not be shelved.
#
print('ERROR shelving: {0}'.format(key))
my_shelf.close()
To restore:
my_shelf = shelve.open(filename)
for key in my_shelf:
globals()[key]=my_shelf[key]
my_shelf.close()
print(T)
# Hiya
print(val)
# [1, 2, 3]