ImportError when I change the directory in cmd - python-3.x

Question

I am trying to import sklearn using cmd, I am changing the directory to a folder where I saved previous python files, however, I can't import sklearn in that particular folder and this is what I get:
>>> import sklearn
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "C:\Users\VER\AppData\Local\Programs\Python\Python36\lib\site-packages\sklearn\__init__.py", line 64, in <module>
from .base import clone
File "C:\Users\VER\AppData\Local\Programs\Python\Python36\lib\site-packages\sklearn\base.py", line 14, in <module>
from .utils.fixes import signature
File "C:\Users\VER\AppData\Local\Programs\Python\Python36\lib\site-packages\sklearn\utils\__init__.py", line 14, in <module>
from . import _joblib
File "C:\Users\VER\AppData\Local\Programs\Python\Python36\lib\site-packages\sklearn\utils\_joblib.py", line 22, in <module>
from ..externals import joblib
File "C:\Users\VER\AppData\Local\Programs\Python\Python36\lib\site-packages\sklearn\externals\joblib\__init__.py", line 119, in <module>
from .parallel import Parallel
File "C:\Users\VER\AppData\Local\Programs\Python\Python36\lib\site-packages\sklearn\externals\joblib\parallel.py", line 28, in <module>
from ._parallel_backends import (FallbackToBackend, MultiprocessingBackend,
File "C:\Users\VER\AppData\Local\Programs\Python\Python36\lib\site-packages\sklearn\externals\joblib\_parallel_backends.py", line 22, in <module>
from .executor import get_memmapping_executor
File "C:\Users\VER\AppData\Local\Programs\Python\Python36\lib\site-packages\sklearn\externals\joblib\executor.py", line 14, in <module>
from .externals.loky.reusable_executor import get_reusable_executor
File "C:\Users\VER\AppData\Local\Programs\Python\Python36\lib\site-packages\sklearn\externals\joblib\externals\loky\__init__.py", line 6, in <module>
from ._base import Executor, Future
File "C:\Users\VER\AppData\Local\Programs\Python\Python36\lib\site-packages\sklearn\externals\joblib\externals\loky\_base.py", line 22, in <module>
from concurrent.futures import wait, as_completed
File "C:\Users\VER\AppData\Local\Programs\Python\Python36\lib\concurrent\futures\__init__.py", line 17, in <module>
from concurrent.futures.process import ProcessPoolExecutor
File "C:\Users\VER\AppData\Local\Programs\Python\Python36\lib\concurrent\futures\process.py", line 52, in <module>
from queue import Full
ImportError: cannot import name 'Full'
>>>

Answer 1

A file or folder is occupying a python file's namespace, for example, 'time.py'.
In this case, it is 'queue.py'
You need to remove it or you will not be able to import the module.
This is because python defaults to importing from the folder containing the program, and you must have a file overwriting 'queue.py' there.
I myself have experienced the error when attempting to import matplotlib into a file named 'copy', as a deep, deep dependency of matplotlib was named 'copy.py'