Fixes treatment of inf and nan value in experiment params

neptune/internal/backends/hosted_neptune_backend.py

@@ -13,8 +13,13 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
+
+# pylint: disable=too-many-lines
+
 import io
+import json
 import logging
+import math
 import os
 import platform
 import socket
@@ -52,7 +57,7 @@
 from neptune.notebook import Notebook
 from neptune.oauth import NeptuneAuthenticator
 from neptune.projects import Project
-from neptune.utils import is_float, with_api_exceptions_handler, update_session_proxies
+from neptune.utils import with_api_exceptions_handler, update_session_proxies
 from neptune.constants import ANONYMOUS, ANONYMOUS_API_TOKEN
 
 _logger = logging.getLogger(__name__)
@@ -770,19 +775,31 @@ def _get_all_items(get_portion, step):
 
         return items
 
+    def _get_parameter_with_type(self, parameter):
+        string_type = 'string'
+        double_type = 'double'
+        if isinstance(parameter, bool):
+            return (string_type, str(parameter))
+        elif isinstance(parameter, float) or isinstance(parameter, int):
+            if math.isinf(parameter) or math.isnan(parameter):
+                return (string_type, json.dumps(parameter))
+            else:
+                return (double_type, str(parameter))
+        else:
+            return (string_type, str(parameter))
+
     def _convert_to_api_parameters(self, raw_params):
         Parameter = self.backend_swagger_client.get_model('Parameter')
 
         params = []
         for name, value in raw_params.items():
-            parameter_type = 'double' if is_float(str(value)) and not isinstance(value, six.string_types) else 'string'
-
+            (parameter_type, string_value) = self._get_parameter_with_type(value)
             params.append(
                 Parameter(
                     id=str(uuid.uuid4()),
                     name=name,
                     parameterType=parameter_type,
-                    value=str(value)
+                    value=string_value
                 )
             )
 

tests/neptune/internal/backends/test_hosted_neptune_backend.py

@@ -98,6 +98,9 @@ def test_convert_to_api_parameters(self, uuid4, swagger_client_factory):
             'bool': False,
             'float': 1.23,
             'int': int(12),
+            'inf': float('inf'),
+            '-inf': float('-inf'),
+            'nan': float('nan'),
             'list': [123, 'abc', ['def']],
             'obj': some_object
         })
@@ -108,6 +111,9 @@ def test_convert_to_api_parameters(self, uuid4, swagger_client_factory):
             ApiParameter(id=some_uuid, name='bool', parameterType='string', value='False'),
             ApiParameter(id=some_uuid, name='float', parameterType='double', value='1.23'),
             ApiParameter(id=some_uuid, name='int', parameterType='double', value='12'),
+            ApiParameter(id=some_uuid, name='inf', parameterType='string', value='Infinity'),
+            ApiParameter(id=some_uuid, name='-inf', parameterType='string', value='-Infinity'),
+            ApiParameter(id=some_uuid, name='nan', parameterType='string', value='NaN'),
             ApiParameter(id=some_uuid, name='list', parameterType='string', value="[123, 'abc', ['def']]"),
             ApiParameter(id=some_uuid, name='obj', parameterType='string', value=str(some_object))
         }