Installation and launching in Win-64 OS

[HARSHBARDHANK94]

I have successfully installed the following prerequisites: python: 3.8.5, pillow: 8.0.1, numpy: 1.19.2, basemap: 1.2.2+dev, ccplot: 1.5.6 and ccplot is working fine as I made a plot with it. And also downloaded the VOCAL zip from https://github.com/NASA-DEVELOP/VOCAL.
but am facing error in launching it, may be I am doing something wrong. some folder path screenshots is shown below:

[HARSHBARDHANK94]

(base) C:\Users\HARSHBARDHAN>python VOCAL\calipso\Calipso.py
VOCAL\calipso\Calipso.py:730: SyntaxWarning: "is" with a literal. Did you mean "=="?
if f is '':

Traceback (most recent call last):
File "C:\Users\HARSHBARDHAN\VOCAL\calipso\tools\config.py", line 114, in get_config
with open(self.__file) as json_data_file:
FileNotFoundError: [Errno 2] No such file or directory: './dat/config.json'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "VOCAL\calipso\Calipso.py", line 15, in
from tools.loaddata import LoadData
File "C:\Users\HARSHBARDHAN\VOCAL\calipso\tools\loaddata.py", line 11, in
import constants
File "C:\Users\HARSHBARDHAN\VOCAL\calipso\constants.py", line 79, in
CONF = Config(PATH + '/dat/config.json')
File "C:\Users\HARSHBARDHAN\VOCAL\calipso\tools\config.py", line 105, in init
self.get_config()
File "C:\Users\HARSHBARDHAN\VOCAL\calipso\tools\config.py", line 119, in get_config
self.write_config()
File "C:\Users\HARSHBARDHAN\VOCAL\calipso\tools\config.py", line 136, in write_config
for key, value in var_dict.iteritems():
AttributeError: 'dict' object has no attribute 'iteritems'

[HARSHBARDHANK94]

FileNotFoundError: [Errno 2] No such file or directory: './dat/config.json'

[HARSHBARDHANK94]

Anyone please guide to do it properly.