I am using Anaconda 3 with VSCode and with python 3.65 on Windows10 64 bit. I installed the pygraphviz using the instructions given at here. However, when I tried to run the script in VSCode with only one line: import pygraphviz, it gives the following error:

Traceback (most recent call last): File "e:\aa.py", line 3, in <module> import pygraphviz File "C:\Users\markz\AppData\Roaming\Python\Python36\site-packages\pygraphviz\__init__.py", line 58, in <module> from .agraph import AGraph, Node, Edge, Attribute, ItemAttribute, DotError File "C:\Users\markz\AppData\Roaming\Python\Python36\site-packages\pygraphviz\agraph.py", line 26, in <module> from . import graphviz as gv File "C:\Users\markz\AppData\Roaming\Python\Python36\site-packages\pygraphviz\graphviz.py", line 28, in <module> _graphviz = swig_import_helper() File "C:\Users\markz\AppData\Roaming\Python\Python36\site-packages\pygraphviz\graphviz.py", line 24, in swig_import_helper _mod = imp.load_module('_graphviz', fp, pathname, description) File "C:\ProgramData\Anaconda3\lib\imp.py", line 243, in load_module return load_dynamic(name, filename, file) File "C:\ProgramData\Anaconda3\lib\imp.py", line 343, in load_dynamic return _load(spec) ImportError: DLL load failed: The specified module could not be found.

From this issue, I thought I installed the package under the wrong folder. However, when I run the code in the terminal in VSCode, it gives the same error. The code that VSCode actually executed in the terminal are
C:\ProgramData\Anaconda3\Scripts\activate base
C:/ProgramData/Anaconda3/python.exe e:/aa.py

However, when I copied these two lines of code to the cmd in the Windows, it runs without error. So I am now confused as of why the same code gives different result when running in the terminal from VSCode and from Windows itself? Did I install the pygraphviz into the wrong folder? Any help would be greatly appreciated!