Merge pull request micasense#185 from fdarvas/master

install correct pyexif tool version

micasense/metadata.py

@@ -123,18 +123,21 @@ def position(self):
     def utc_time(self):
         ''' Get the timezone-aware datetime of the image capture '''
         str_time = self.get_item('EXIF:DateTimeOriginal')
-        utc_time = datetime.strptime(str_time, "%Y:%m:%d %H:%M:%S")
-        subsec = int(self.get_item('EXIF:SubSecTime'))
-        negative = 1.0
-        if subsec < 0:
-            negative = -1.0
-            subsec *= -1.0
-        subsec = float('0.{}'.format(int(subsec)))
-        subsec *= negative
-        ms = subsec * 1e3
-        utc_time += timedelta(milliseconds = ms)
-        timezone = pytz.timezone('UTC')
-        utc_time = timezone.localize(utc_time)
+        if str_time is not None:
+            utc_time = datetime.strptime(str_time, "%Y:%m:%d %H:%M:%S")
+            subsec = int(self.get_item('EXIF:SubSecTime'))
+            negative = 1.0
+            if subsec < 0:
+                negative = -1.0
+                subsec *= -1.0
+            subsec = float('0.{}'.format(int(subsec)))
+            subsec *= negative
+            ms = subsec * 1e3
+            utc_time += timedelta(milliseconds = ms)
+            timezone = pytz.timezone('UTC')
+            utc_time = timezone.localize(utc_time)
+        else:
+            utc_time = None
         return utc_time
 
     def dls_pose(self):

micasense_conda_env.yml

@@ -23,6 +23,6 @@ dependencies:
       - pysolar
       - pyzbar
       - mapboxgl
-      - git+https://github.com/sylikc/pyexiftool#egg=pyexiftool
+      - pyexiftool<=0.4.13
       - jenkspy
       - rawpy

setup.py

@@ -29,7 +29,7 @@
           'matplotlib',
           'scikit-image',
           'packaging',
-          'pyexiftool',
+          'pyexiftool<=0.4.13',
           'pytz',
           'pyzbar',
           'tqdm'