Demo.py 
PSI Readings: (0.000000, 0.500000)
The batch item wasn't processed successfully because: (400)
Reason: Bad Request
HTTP response headers: HTTPHeaderDict({'Date': 'Sat, 11 Apr 2020 23:46:17 GMT', 'Content-Type': 'application/json; charset=utf-8', 'Content-Length': '54', 'Connection': 'keep-alive', 'Strict-Transport-Security': 'max-age=15724800; includeSubDomains', 'x-platform-error-code': 'invalid'})
HTTP response body: {"code":"invalid","message":"writing requires points"}

PSI Readings: (1.000000, 1.500000)
PSI Readings: (2.000000, 2.500000)
PSI Readings: (3.000000, 3.500000)
PSI Readings: (4.000000, 4.500000)
PSI Readings: (5.000000, 5.500000)
PSI Readings: (6.000000, 6.500000)
PSI Readings: (7.000000, 7.500000)
PSI Readings: (8.000000, 8.500000)
PSI Readings: (9.000000, 9.500000)
PSI Readings: (10.000000, 10.500000)
PSI Readings: (11.000000, 11.500000)
PSI Readings: (12.000000, 12.500000)
PSI Readings: (13.000000, 13.500000)
PSI Readings: (14.000000, 14.500000)
PSI Readings: (15.000000, 15.500000)
PSI Readings: (16.000000, 16.500000)
PSI Readings: (17.000000, 17.500000)
PSI Readings: (18.000000, 18.500000)
PSI Readings: (19.000000, 19.500000)
PSI Readings: (20.000000, 20.500000)
PSI Readings: (21.000000, 21.500000)
PSI Readings: (22.000000, 22.500000)
PSI Readings: (23.000000, 23.500000)
PSI Readings: (24.000000, 24.500000)
PSI Readings: (25.000000, 25.500000)
PSI Readings: (26.000000, 26.500000)
PSI Readings: (27.000000, 27.500000)
The batch item wasn't processed successfully because: (400)
Reason: Bad Request
HTTP response headers: HTTPHeaderDict({'Date': 'Sat, 11 Apr 2020 23:46:31 GMT', 'Content-Type': 'application/json; charset=utf-8', 'Content-Length': '54', 'Connection': 'keep-alive', 'Strict-Transport-Security': 'max-age=15724800; includeSubDomains', 'x-platform-error-code': 'invalid'})
HTTP response body: {"code":"invalid","message":"writing requires points"}

PSI Readings: (28.000000, 28.500000)
PSI Readings: (29.000000, 29.500000)
PSI Readings: (30.000000, 30.500000)
The batch item wasn't processed successfully because: (400)
Reason: Bad Request
HTTP response headers: HTTPHeaderDict({'Date': 'Sat, 11 Apr 2020 23:46:32 GMT', 'Content-Type': 'application/json; charset=utf-8', 'Content-Length': '54', 'Connection': 'keep-alive', 'Strict-Transport-Security': 'max-age=15724800; includeSubDomains', 'x-platform-error-code': 'invalid'})
HTTP response body: {"code":"invalid","message":"writing requires points"}

PSI Readings: (31.000000, 31.500000)
PSI Readings: (32.000000, 32.500000)
PSI Readings: (33.000000, 33.500000)
PSI Readings: (34.000000, 34.500000)
PSI Readings: (35.000000, 35.500000)
PSI Readings: (36.000000, 36.500000)
The batch item wasn't processed successfully because: (400)
Reason: Bad Request
HTTP response headers: HTTPHeaderDict({'Date': 'Sat, 11 Apr 2020 23:46:35 GMT', 'Content-Type': 'application/json; charset=utf-8', 'Content-Length': '54', 'Connection': 'keep-alive', 'Strict-Transport-Security': 'max-age=15724800; includeSubDomains', 'x-platform-error-code': 'invalid'})
HTTP response body: {"code":"invalid","message":"writing requires points"}

PSI Readings: (37.000000, 37.500000)
PSI Readings: (38.000000, 38.500000)
PSI Readings: (39.000000, 39.500000)
PSI Readings: (40.000000, 40.500000)
PSI Readings: (41.000000, 41.500000)
PSI Readings: (42.000000, 42.500000)
PSI Readings: (43.000000, 43.500000)
PSI Readings: (44.000000, 44.500000)
PSI Readings: (45.000000, 45.500000)
PSI Readings: (46.000000, 46.500000)
PSI Readings: (47.000000, 47.500000)
PSI Readings: (48.000000, 48.500000)
PSI Readings: (49.000000, 49.500000)