PIP failure - Windows 10, Py 3.7

[RichardCullen]

Missing requirement pypandoc causes PIP install to fail.

'''
Collecting em73xx (from -r requirements.txt (line 3))
Using cached https://files.pythonhosted.org/packages/6d/89/474052b4bb0ad2771b339ff66fa6506d9ebe3c29a3414789aad2f189e48f/em73xx-0.11.tar.gz
Complete output from command python setup.py egg_info:
Traceback (most recent call last):
File "C:\Users<snip>\AppData\Local\Temp\pip-install-rizi6dyh\em73xx\setup.py", line 7, in
import pypandoc
ModuleNotFoundError: No module named 'pypandoc'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "C:\Users\<snip>\AppData\Local\Temp\pip-install-rizi6dyh\em73xx\setup.py", line 10, in <module>
    long_description = open('README.md').read()
FileNotFoundError: [Errno 2] No such file or directory: 'README.md'

'''