Fix python3 issues

lib/SlurmDagman/__init__.py

@@ -1,3 +1,3 @@
 #!/usr/bin/env python
 
-__version__ = "0.1.2"
+__version__ = "0.1.3"

lib/SlurmDagman/config/manager.py

@@ -50,7 +50,7 @@ def set_params(self, params):
     def set_param(self, section, option, value):
         if not self.config.has_section(section):
             self.config.add_section(section)
-        self.config.set(section, option, value)
+        self.config.set(section, option, str(value))
 
 
     def get_params(self, sections_and_options=None):

lib/SlurmDagman/dag/__init__.py

@@ -55,7 +55,7 @@ def reset_node(self, node):
 
 
     def get_nodes(self):
-        return self.dag.keys()
+        return list(self.dag.keys())
 
 
     def parse(self):
@@ -205,7 +205,7 @@ def write(self, dag_file='', use_dag_nodes_appearance_order=False, add_done_labe
         if use_dag_nodes_appearance_order and self.dag_nodes_appearance_order:
             nodes = sorted(self.dag_nodes_appearance_order, key=self.dag_nodes_appearance_order.get)
         else:
-            nodes = self.dag.keys()
+            nodes = self.get_nodes()
         jobs_lines = []
         for node in nodes:
             job_line = 'JOB %s %s' % (node, self.dag[node]['job_submission_file'])

lib/SlurmDagman/process/worker.py

@@ -194,7 +194,7 @@ def __parse_process_config(self, log_changes=True):
         # type.) In case of such a failure, we get None for that parameter;
         # so we have to handle the case of a parameter being None. Finally,
         # we will return True if there is no None parameter and False otherwise.
-        params = self.__get_process_config_params().values()
+        params = list(self.__get_process_config_params().values())
         sleep_time, max_jobs_queued, max_jobs_submit, submit_wait_time, \
         drain, cancel \
             = params[:]
@@ -270,7 +270,7 @@ def __pre_execute_dag(self):
 
 
     def __pre_write_dag(self):
-        for node in copy.copy(self.dag_done.keys()):
+        for node in list(self.dag_done.keys()):
             if node not in self.dag:
                 self.dag[node] = copy.deepcopy(self.dag_done[node])
             else: