Launching Python script from Windows command line: script starts, then fails

I'm a rank novice, please bear with me.

I've inherited a python script from another engineer. For convenience, I want to be able to launch the script from a Windows bat file, but initially am trying to debug by running from Windows command line.

Whenever I start the script from CMD, it seems to start OK and then immediately fails with errors.

My environment: Windows7 Pro and Windows10 Pro (same errors occur), Anaconda 3.7 , Spyder 3.3.2

When I run the script from inside Spyder, script runs fine, no errors.

When I try running from Windows CMD:

  C:\Windows\system32>  "%programdata%\Anaconda3\python.exe"   "B:\IcCharData\B1505_Process_Data_20190214.py"

I get these errors:

Traceback (most recent call last):
  File "B:\IcCharData\B1505_Process_Data_20190214.py", line 21, in <module>
    import pandas as pd # Dataframe library
  File "C:\ProgramData\Anaconda3\lib\site-packages\pandas\__init__.py", line 19, in <module>
    "Missing required dependencies {0}".format(missing_dependencies))
ImportError: Missing required dependencies ['numpy']

Below is the first part of the script, with actual line #s, where errors seem to be originating. Internet searches have been fruitless.

What could be the problem(s)?
Again, note the script runs fine from inside Spyder

[snipped some irrelevant comments]

20  # Load the necessary libraries
21  import pandas as pd # Dataframe library
22  import numpy as np # Numeric library
23  import glob # Files related
24  import os # Operating System related
25  import sys #Operating System related
26  import re # regular expression related
27  import sqlite3 # database
28  import datetime
29  import subprocess # for running external programs like JMP from python
30  import logging # enables logging to both screen and a file
31  import statsmodels.api as sm # Modeling library used for linear regression

33  # Logging settings
34  logfilename = "./3_OutputData/B1505_Data_Process_Log_" + datetime.datetime.now().strftime("%Y-%m-%d-%H-%M") + '.txt'
35  level = logging.INFO
36  format = '  %(message)s'
37  handlers = [logging.FileHandler(logfilename), logging.StreamHandler()]
38  logging.basicConfig(level = level, format = format, handlers = handlers)

[snipped remaining 300+ lines of code]

ADDED on 2019-02-24, in response to AJNeufeld's comment:

Ran in Spyder :

import sys
print(sys.path)

runfile('B:/Desktop/untitled0.py', wdir='B:/Desktop')    # TH: apparently because spyder prompted me to save the script here#
[
'C:\\Users\\th',                 # TH: line not present with Anaconda Prompt#
'C:\\ProgramData\\Anaconda3\\python37.zip', 
'C:\\ProgramData\\Anaconda3\\DLLs', 
'C:\\ProgramData\\Anaconda3\\lib', 
'C:\\ProgramData\\Anaconda3', 
'', 
'C:\\ProgramData\\Anaconda3\\lib\\site-packages', 
'C:\\ProgramData\\Anaconda3\\lib\\site-packages\\win32', 
'C:\\ProgramData\\Anaconda3\\lib\\site-packages\\win32\\lib', 
'C:\\ProgramData\\Anaconda3\\lib\\site-packages\\Pythonwin', 
'C:\\ProgramData\\Anaconda3\\lib\\site-packages\\IPython\\extensions', # TH: line not present with Anaconda Prompt#
'C:\\Users\\th\\.ipython'                       # TH: line not present with Anaconda Prompt#
]

Ran in Anaconda Prompt:

(base) C:\Users\th>python
Python 3.7.1 (default, Dec 10 2018, 22:54:23) [MSC v.1915 64 bit (AMD64)] :: Anaconda, Inc. on win32
Type "help", "copyright", "credits" or "license" for more information.

>>> import sys
>>> print(sys.path)

[
'', 
'C:\\ProgramData\\Anaconda3\\python37.zip', 
'C:\\ProgramData\\Anaconda3\\DLLs', 
'C:\\ProgramData\\Anaconda3\\lib', 
'C:\\ProgramData\\Anaconda3',
'C:\\ProgramData\\Anaconda3\\lib\\site-packages', 
'C:\\ProgramData\\Anaconda3\\lib\\site-packages\\win32', 
'C:\\ProgramData\\Anaconda3\\lib\\site-packages\\win32\\lib', 
'C:\\ProgramData\\Anaconda3\\lib\\site-packages\\Pythonwin'
]