updated requirements

README.md

 [![Build](https://git-ce.rwth-aachen.de/wzl-mq-ms/forschung-lehre/lava/unified-device-interface/python/badges/master/pipeline.svg)](https://git-ce.rwth-aachen.de/wzl-mq-ms/forschung-lehre/lava/unified-device-interface/python/commits/master)
 
 # Python Unified Device Interface
-Current stable version: 10.0.5
+Current stable version: 10.0.6
 
 ## Installation
 1. Install the WZL-UDI package via pip
@@ -22,28 +22,28 @@ Examples of fictional devices using the library can be found [here](https://git-
 
 Scientific background and publications related to the _(Python) Unified Device Interface_ are:
 
-[Bodenbenner, M.](mailto:m.bodenbenner@wzl-mq.rwth-aachen.de); Sanders, M. P.; Montavon, B.; Schmitt, R. H. (2021): 
+[Bodenbenner, M.](mailto:matthias.bodenbenner@wzl-iqs.rwth-aachen.de); Sanders, M. P.; Montavon, B.; Schmitt, R. H. (2021): 
 Domain-Specific Language for Sensors in the Internet of Production. 
 In: Bernd-Arno Behrens, Alexander Brosius, Wolfgang Hintze, Steffen Ihlenfeldt und Jens Peter Wulfsberg (Hg.): 
 Production at the leading edge of technology. Proceedings of the 10th Congress of the German Academic Association for Production Technology (WGP), Dresden, 23-24 September 2020. Berlin, Heidelberg, 2021. 1st ed. 2021. Berlin, Heidelberg: Springer (Lecture Notes in Production Engineering), S. 448–456, 
 http://dx.doi.org/10.1007/978-3-662-62138-7_45
 
-[Bodenbenner, M.](mailto:m.bodenbenner@wzl-mq.rwth-aachen.de); Montavon, B.; Schmitt, R.H. (2021): 
+[Bodenbenner, M.](mailto:matthias.bodenbenner@wzl-iqs.rwth-aachen.de); Montavon, B.; Schmitt, R.H. (2021): 
 FAIR sensor services - Towards sustainable sensor data management. 
 In: Measurement: Sensors 18, S. 100206, 
 https://doi.org/10.1016/j.measen.2021.100206
 
-[Bodenbenner, M.](mailto:m.bodenbenner@wzl-mq.rwth-aachen.de); Montavon, B.; Schmitt, R.H. (2022):
+[Bodenbenner, M.](mailto:matthias.bodenbenner@wzl-iqs.rwth-aachen.de); Montavon, B.; Schmitt, R.H. (2022):
 Model-driven development of interoperable communication interfaces for FAIR sensor services,
 In: Measurement: Sensors, Volume 24, S. 100442,
 https://doi.org/10.1016/j.measen.2022.100442
 
-[Montavon, B.](mailto:b.montavon@wzl-mq.rwth-aachen.de) (2021): 
+[Montavon, B.](mailto:benjamin.montavon@wzl-iqd.rwth-aachen.de) (2021): 
 Virtual Reference Frame Based on Distributed Large-Scale Metrology Providing Coordinates as a Service. 
 Aachen: Apprimus Verlag,
 https://doi.org/10.18154/RWTH-2021-10238
 
-[Montavon, B.](mailto:b.montavon@wzl-mq.rwth-aachen.de); Peterek, M.; Schmitt, R. H. (2019): 
+[Montavon, B.](mailto:benjamin.montavon@wzl-iqd.rwth-aachen.de); Peterek, M.; Schmitt, R. H. (2019): 
 Model-based interfacing of large-scale metrology instruments. 
 In: Ettore Stella (Hg.): Multimodal Sensing: Technologies and Applications. 26-27 June 2019, Munich, Germany. Multimodal Sensing and Artificial Intelligence: Technologies and Applications. Munich, Germany, 6/24/2019 - 6/27/2019. Bellingham, Washington: SPIE (Proceedings of SPIE. 5200-, volume 11059), S. 11,
 https://doi.org/10.1117/12.2527461
@@ -56,7 +56,7 @@ Funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation)
 
 Funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Project-ID 432233186 -- AIMS. 
 
-## License of used third-party libraries
+## Licenses of third-party libraries used
 
 | Library      | License                               |
 |--------------|---------------------------------------|
@@ -69,10 +69,13 @@ Funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation)
 
 ## Recent changes
 
+**10.0.6** - 2024-03-22
+  - fixed validation of rfc3339 datetime strings
+
 **10.0.5** - 2024-03-22
   - bug fix in streaming
 
-  - **10.0.4** - 2024-03-22
+**10.0.4** - 2024-03-22
   - increased logging verbosity of streaming class
   - fixed streaming of semantic measurements
 

setup.py

@@ -4,7 +4,7 @@ with open("README.md", "r", encoding="utf-8") as fh:
     long_description = fh.read()
 
 setup(name='wzl-udi',
-      version='10.0.5',
+      version='10.0.6',
       url='https://git-ce.rwth-aachen.de/wzl-mq-public/soil/python',
       project_urls={
           "Bug Tracker": "https://git-ce.rwth-aachen.de/wzl-mq-public/soil/python/-/issues",

src/soil/variable.py

@@ -24,6 +24,31 @@ from ..utils.error import DeviceException
 logger = root_logger.get(__name__)
 
 
+def validate_time(time_rfc3339: Union[str, List]):
+    if isinstance(time_rfc3339, list):
+        for e in time_rfc3339:
+            if not validate_time(e):
+                return False
+        return True
+    else:
+        if time_rfc3339 is None or time_rfc3339 == "":
+            return False
+
+        formats = ["%Y-%m-%dT%H:%M:%S.%f%z", "%Y-%m-%dT%H:%M:%S%z", "%Y-%m-%dT%H:%M:%S.%fZ", "%Y-%m-%dT%H:%M:%SZ"]
+
+        for fmt in formats:
+            try:
+                if fmt.endswith('Z'):
+                    datetime.datetime.strptime(time_rfc3339.rstrip('Z'), fmt.rstrip('Z'))
+                else:
+                    datetime.datetime.strptime(time_rfc3339, fmt)
+                return True
+
+            except ValueError:
+                continue
+        return False
+
+
 def parse_time(time_rfc3339: Union[str, List]):
     if isinstance(time_rfc3339, list):
         return [parse_time(e) for e in time_rfc3339]
@@ -38,10 +63,10 @@ def parse_time(time_rfc3339: Union[str, List]):
                 # Attempt to parse the timestamp with the current format
                 if fmt.endswith('Z'):
                     # Strip the 'Z' and replace it after parsing if format specifies 'Z' at the end
-                    dt = datetime.strptime(time_rfc3339.rstrip('Z'), fmt.rstrip('Z'))
+                    dt = datetime.datetime.strptime(time_rfc3339.rstrip('Z'), fmt.rstrip('Z'))
                     dt = dt.replace(tzinfo=pytz.UTC)
                 else:
-                    dt = datetime.strptime(time_rfc3339, fmt)
+                    dt = datetime.datetime.strptime(time_rfc3339, fmt)
                 return dt
 
             except ValueError:
@@ -217,7 +242,7 @@ class Variable(Element, ABC):
                     "Time field {} must be string.".format(
                         value))
             elif datatype == Datatype.TIME and isinstance(value, str):
-                if value != "" and value is not None and not rfc3339.validate_rfc3339(value):
+                if value != "" and value is not None and not validate_time(value):
                     raise TypeException("Value is not a valid RFC3339-formatted timestring: {}".format(value))
         else:
             # recursion case: value is an array or matrix => check datatype of each "subvalue" recursively
@@ -279,7 +304,7 @@ class Variable(Element, ABC):
                     raise RangeException("Enum value {} is not within the set of allowed values!".format(value))
             elif datatype == Datatype.TIME and value is not None and value != "":
                 if range[0] is not None:
-                    if not rfc3339.validate_rfc3339(range[0]):
+                    if not validate_time(range[0]):
                         raise TypeException(
                             "Can not check range of time value. Lower bound {} is not a valid RFC3339 timestring.".format(
                                 range[0]))
@@ -288,7 +313,7 @@ class Variable(Element, ABC):
                             "Time value {} is smaller than lower bound {}!".format(parse_time(value),
                                                                                    parse_time(range[0])))
                 elif range[1] is not None:
-                    if not rfc3339.validate_rfc3339(range[1]):
+                    if not validate_time(range[1]):
                         raise TypeException(
                             "Can not check range of time value. Upper bound {} is not a valid RFC3339 timestring.".format(
                                 range[0]))