Built-in small module
globals
- returns a dictionary with all the global variables and symbols for the current program.
print(globals())
""" for example :
{'In': ['', 'globals()'],
'Out': {},
'_': '',
'__': '',
'___': '',
'__builtin__': <module 'builtins' (built-in)>,
'__builtins__': <module 'builtins' (built-in)>,
'__name__': '__main__',
'_dh': ['/home/repl'],
'_i': '',
'_i1': 'globals()',
'_ih': ['', 'globals()'],
'_ii': '',
'_iii': '',
'_oh': {},
'_sh': <module 'IPython.core.shadowns' from '/usr/local/lib/python3.5/dist-packages/IPython/core/shadowns.py'>,
'exit': <IPython.core.autocall.ExitAutocall at 0x7fbc60ca6c50>,
'get_ipython': <bound method InteractiveShell.get_ipython of <IPython.core.interactiveshell.InteractiveShell object at 0x7fbc6478ee48>>,
'quit': <IPython.core.autocall.ExitAutocall at 0x7fbc60ca6c50>}
"""
_ all _ :
- _ all _ affects the
from <module> import * ONLY
- i.e.
from <module> import <something> still works for all var
# foo.py
__all__ = ['bar', 'baz']
waz = 5
bar = 10
def baz(): return 'baz'
# main.py
from foo import *
print(bar)
print(baz)
# The following will trigger an exception, as "waz" is not exported by the module
print(waz)