Unable to run coverage tool using embedded python using the -m option or when copied to different path locations in windows

I am trying to run the python coverage tool using embedded python downloaded from https://www.python.org/ftp/python/3.6.1/python-3.6.1-embed-amd64.zip
The following are the steps I followed to run a test code using coverage module.

1. After downloading python-3.6.1-embed-amd64.zip, I uncompress the files to D:\some_directory\python-3.6.1-embed-amd64

2. cd python-3.6.1-embed-amd64

3. python get-pip.py

4. python -mpip install coverage

5. python-3.6.1-embed-amd64\python36._pth is changed to

    python36.zip
    Lib\site-packages
    .
    # Uncomment to run site.main() automatically
    #import site

6. In case if there is an internet proxy to used then use the following command

   SET HTTP_PROXY=http://username:password@proxy_ip:proxy_port

7. python -mpip install coverage

Create test files as follows

The file module_prog.py is as follows

# -*- coding: utf-8 -*-
"""
    Dummy method for testing
"""


def method_to_tested() -> None:
    """
    Method To be tested
    """
    print("Called method to be tested")

The file test_module.py is as follows

""" Unit test script for testing File : test_module.py
"""

import unittest
from module_prog import method_to_tested


class TestMethods(unittest.TestCase):
    """ Testing the methods """

    def test_method_to_tested(self):
        method_to_tested()

if __name__ == "__main__":
    unittest.main(warnings='ignore')

8. I run the following

    D:\some_directory\python-3.6.1-embed-amd64>python test_module.py

    Called method to be tested
    .
    ----------------------------------------------------------------------
    Ran 1 test in 0.000s

    OK

9. But if I run the instruction as mentioned below using converage I get the following error.

    D:\some_directory\python-3.6.1-embed-amd64>python -mcoverage run test_module.py

    Traceback (most recent call last):
      File "test_module.py", line 4, in <module>
        import unittest
    ModuleNotFoundError: No module named 'unittest'

If I run the command

  Scripts\converage.exe run test_module.py

Then coverage run successfully,
But if I move the embedded python to another directory and try to run the same command as above then I get the following error

D:\some_other_directory\python-3.6.1-embed-amd64>Scripts\coverage.exe run test_module.py

Fatal error in launcher: Unable to create process using 
'"d:\some_directory\python-3.6.1-embed-amd64\python.exe" "D:\some_other_directory\python-3.6.1-embed-amd64\Scripts\coverage.exe" run test_module.py'

How can I make coverage run as a python module in case the python is embedded python

Reproduce the two commands from the issue with Python 3.6.1 embedded in the reported directory layout. Start by comparing python -m coverage with Scripts\coverage.exe, then check the launcher path shown in the error after moving the directory. Done means coverage runs as a module with embedded Python and the copied launcher no longer references the original path.