Memory usage of python session

python_memory_usage.py

import sys

# These are the usual ipython objects, including this one you are creating
ipython_vars = ['In', 'Out', 'exit', 'quit', 'get_ipython', 'ipython_vars']

# Get a sorted list of the objects and their sizes in MB, E6 to E9 for GB
sorted(
    [(x, sys.getsizeof(globals().get(x)) / 10E6 * 8)
     for x in dir()
     if
         not x.startswith('_') and
         x not in sys.modules and
         x not in ipython_vars
    ],
    key=lambda x: x[1],
    reverse=True
)