ModuleNotFoundError: No module named 'theano' / working in ipython but not in VS code

[Minjun-Bae]

Hello everyone,

Hope everyone is doing well in this difficult situation.
I am a new coder at a very beginner level, and after a series of attempts for weeks, I THINK I have downloaded theano successfully via anaconda prompt.

The issue is, it works flawlessly in ipython, but not in VS code.
For example, a simple verification can be made by:

(base) C:\Users\MJ>ipython
Python 3.8.11 (default, Aug 6 2021, 09:57:55) [MSC v.1916 64 bit (AMD64)]
Type 'copyright', 'credits' or 'license' for more information
IPython 7.26.0 -- An enhanced Interactive Python. Type '?' for help.

In [1]: import theano

In [2]: import theano.tensor as T

In [3]: x = T.scalar('x')

In [4]: y = T.scalar('y')

In [5]: z=x+y

In [6]: adder = theano.function(inputs=[x,y], outputs=z)

In [7]: adder(1,2)
Out[7]: array(3.)

However, in the VS code, the error message saying ModuleNotFoundError: No module named 'theano' pops up.
Plus, it seems that only capitalized theano, which is THEANO, is only recognizable based on their green-like color, but THEANO.tensor is not recognized as well.

I believe this is an issue that a lot of beginners experience due to the unfamiliarity to all these "complicated" system variables, working path, and so on.

Can anyone point out what the problem is ?

Thanks in advance.

Best,