>>> import clr
>>> from System import Environment
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ImportError: cannot import name Environment

>>> import clr
>>> from System import Array
>>> a = Array[int](100)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: Cannot convert 100 to System.Int32[]

>>> import clr
>>> clr.AddReference("System.Drawing")
<System.Reflection.RuntimeAssembly object at 0x7f0c58881990>