Refactor: Made hitran kwargs keyword only

Author: nkphysics

astroquery/hitran/core.py

@@ -151,7 +151,7 @@ def __init__(self, **kwargs):
         """
         super().__init__()
 
-    def _args_to_payload(self, molecule_number=1, isotopologue_number=1,
+    def _args_to_payload(self, *, molecule_number=1, isotopologue_number=1,
                          min_frequency=None, max_frequency=None):
         """
         Code to parse input and construct the payload dictionary.
@@ -199,7 +199,7 @@ def _args_to_payload(self, molecule_number=1, isotopologue_number=1,
         return payload
 
     @prepend_docstr_nosections("\n" + _args_to_payload.__doc__)
-    def query_lines_async(self, get_query_payload=False, cache=True, **kwargs):
+    def query_lines_async(self, *, get_query_payload=False, cache=True, **kwargs):
         """
         Queries Hitran class for a particular molecule with default arguments
         set. Based on fetch function from hapi.py.
@@ -223,7 +223,7 @@ def query_lines_async(self, get_query_payload=False, cache=True, **kwargs):
 
         return response
 
-    def _parse_result(self, response, verbose=False):
+    def _parse_result(self, response, *, verbose=False):
         """
         Parse a response into an `~astropy.table.Table`
         """

astroquery/hitran/utils.py

@@ -7,7 +7,7 @@
             'F': float}
 
 
-def parse_readme(filename, group_global=None, group_local=None):
+def parse_readme(filename, *, group_global=None, group_local=None):
     with open(filename, 'r') as f:
         lines = f.readlines()
 
@@ -51,7 +51,7 @@ def parse_readme(filename, group_global=None, group_local=None):
     return formats
 
 
-def quanta_formatter(group_global='class1', group_local='group1'):
+def quanta_formatter(*, group_global='class1', group_local='group1'):
     """
     Format based on the global/local formatters from the HITRAN04 paper
     """