anaconda中jupyter notebook无法导入已安装的模块

一、使用python时在不同环境中可以正常导入各个环境中存在的模块

• 基环境及安装的包：安装了flask模块，未安装bcrypt

D:\xxxxyyyy>conda activate base
(base) D:\xxxxyyyy>conda list
# packages in environment at D:\Anaconda3:
#
# Name                    Version                   Build  Channel
......
flask                     1.0.2                    	py37_1
......
python                    3.7.1               	 h8c8aaf0_6
......

(base) D:\xxxxyyyy>python
>>> import sys;sys.executable
'D:\\Anaconda3\\python.exe'
 
>>> import flask;flask


>>> import bcrypt
Traceback (most recent call last):
  File "", line 1, in 
ModuleNotFoundError: No module named 'bcrypt'

• 虚拟环境及安装的包：未安装flask模块，安装了bcrypt模块

D:\xxxxyyyy>conda activate py2

(py2) D:\xxxxyyyy>conda list
# packages in environment at D:\Anaconda3\envs\py2:
#
# Name                    Version                   Build  Channel
bcrypt                    3.1.6            py27h0c8e037_0
 ......
python                    2.7.16               hcb6e200_0
......

(py2) D:\xxxxyyyy>python
>>> import sys;sys.executable
'D:\\Anaconda3\\envs\\py2\\python.exe'
>>> sys.path
['', 'D:\\Anaconda3\\envs\\py2\\python27.zip', 'D:\\Anaconda3\\envs\\py2\\DLLs', 'D:\\Anaconda3\\envs\\py2\\lib', 'D:\\Anaconda3\\envs\\py2\\lib\\plat-win', 'D:\\Anaconda3\\envs\\py2\\lib\\lib-tk', 'D:\\Anaconda3\\envs\\py2', 'D:\\Anaconda3\\envs\\py2\\lib\\site-packages']

>>> import flask
Traceback (most recent call last):
  File "", line 1, in 
ImportError: No module named flask
 
>>> import bcrypt;bcrypt

• 此时python解释器版本已变为虚拟环境中的python2版，可以正常使用该虚拟环境才有的模块bcrypt。系统路径已经变成虚拟环境的路径

二、使用jupyter notebook时只能导入基环境的模块

• 在基环境中启动jupyter notebook

(base) D:\xxxxyyyy>jupyter notebook
[I 11:40:01.172 NotebookApp] JupyterLab extension loaded from D:\Anaconda3\lib\site-packages\jupyterlab

In [1]:import sys
	   sys.executable
Out[1]:'D:\\Anaconda3\\python.exe'	
 	 
In [2]:import flask
	   flask
Out[2]:

In [3]:import bcrypt
------
ModuleNotFoundError: No module named 'bcyrpt'

• 在虚拟环境中启动jupyter notebook

(py2) D:\xxxxyyyy>jupyter notebook
[I 11:40:01.172 NotebookApp] JupyterLab extension loaded from D:\Anaconda3\lib\site-packages\jupyterlab

In [1]:import sys
	   sys.executable
Out[1]:'D:\\Anaconda3\\python.exe'	

In [1]:sys.path
Out[1]:['D:\\xxxxyyyy',
	    'D:\\Anaconda3\\python37.zip',
        'D:\\Anaconda3\\DLLs',
		'D:\\Anaconda3\\lib',
		'D:\\Anaconda3',]
 	 
In [2]:import flask
	   flask
Out[2]:

In [3]:import bcrypt
------
ModuleNotFoundError: No module named 'bcyrpt'

• 发现虚拟环境py2的python解释器仍为基环境的python3版本，虚拟环境中存在的bcrypt模块无法导入。系统路径中没有虚拟环境的路径

• 在py2虚拟环境中也安装上jupyter notebook时，导入正常，路径列表也为py2虚拟环境各个文件夹

因为jupyter notebook是基于多个模块的，如何在虚拟环境中不安装jupyter notebook情况下正常使用该虚拟环境中各个模块，以保持虚拟环境的简洁？？？？？