Merge branch 'apppears' of github.com:earthlab/earthpy into apppears

Author: eculler

earthpy/api/appeears.py

@@ -105,6 +105,10 @@ def __init__(
 		if os.path.exists(self.task_id_path):
 			with open(self.task_id_path, 'r') as task_id_file:
 				self._task_id = task_id_file.readline()
+		elif 'APPEEARS_TASKID' in os.environ:
+			self._task_id = os.environ['APPEEARS_TASKID']
+			with open(self.task_id_path, 'w') as task_id_file:
+				task_id_file.write(self._task_id)
 		else:
 			self._task_id = None
 
@@ -355,4 +359,4 @@ def download_files(self, cache=True):
 						f.write(data)
 
 		# Remove task id file when download is complete
-		os.remove(self.task_id_path)
+		os.remove(self.task_id_path)