1. Revereted string formatting.

Author: asladeofgreen

pyessv/io_manager.py

@@ -69,7 +69,7 @@ def read(archive_dir=DIR_ARCHIVE, authority=None, scope=None):
 
     """
     if authority is not None:
-        return _read_authority(f"{archive_dir}/{authority}", scope)
+        return _read_authority("{}/{}".format(archive_dir, authority), scope)
     else:
         return [_read_authority(i) for i in glob.glob('{}/*'.format(archive_dir)) if isdir(i)]
 
@@ -154,7 +154,7 @@ def _get_path_to_scope_parser_config(s, identifier_type, config_dir):
     except OSError:
         pass
 
-    return join(io_path, f"{identifier_type}.json")
+    return join(io_path, "{}.json".format(identifier_type))
 
 
 def _read_authority(dpath, scope_id=None):

pyessv/parsing/identifiers/builder.py

@@ -26,7 +26,7 @@ def build_identifier(scope, identifier_type, terms, regex_terms={}):
     or let the pyessv client to deal with it
     """
 
-    assert identifier_type in IDENTIFIER_TYPE_SET, f"Unsupported parser type: {identifier_type}"
+    assert identifier_type in IDENTIFIER_TYPE_SET, "Unsupported parser type: {}".format(identifier_type)
 
     # Set parsing configuration.
     cfg = get_config(scope, identifier_type)

pyessv/parsing/identifiers/config.py

@@ -41,7 +41,7 @@ def __repr__(self):
         """Instance representation.
 
         """
-        return f"parser-spec|const::{self.value}::{self.is_required}"
+        return "parser-spec|const::{}::{}".format(self.value, self.is_required)
 
 
 class CollectionParsingSpecification(ParsingSpecification):
@@ -62,7 +62,7 @@ def __repr__(self):
         """Instance representation.
 
         """
-        return f"parser-spec|collection::{self.namespace}::{self.is_required}"
+        return "parser-spec|collection::{}::{}".format(self.namespace, self.is_required)
 
 
 class RegExParsingSpecification(ParsingSpecification):
@@ -83,7 +83,7 @@ def __repr__(self):
         """Instance representation.
 
         """
-        return f"parser-spec|regex::{self.expression}::{self.is_required}"
+        return "parser-spec|regex::{}::{}".format(self.expression, self.is_required)
 
 
 class ParsingConfiguration():
@@ -120,7 +120,7 @@ def __repr__(self):
         """Instance representation.
 
         """
-        return f"parser-config|{self.scope_namespace}::{self.identifier_type}::{len(self.specs)}"
+        return "parser-config|{}::{}::{}".format(self.scope_namespace, self.identifier_type, len(self.specs))
 
 
 def get_config(scope, identifier_type):
@@ -133,7 +133,7 @@ def get_config(scope, identifier_type):
     """
     if isinstance(scope, compat.basestring):
         scope = loader.load(scope)
-    cache_key = f"{scope} :: {identifier_type}"
+    cache_key = "{scope} :: {identifier_type}".format(scope, identifier_type)
     if cache_key not in _CACHE:
         _CACHE[cache_key] = _get_config(scope, identifier_type)
 

pyessv/parsing/identifiers/parser.py

@@ -22,7 +22,7 @@ def parse_identifer(scope, identifier_type, identifier, strictness=PARSING_STRIC
     :param strictness: Strictness level to apply when applying name matching rules.
 
     """
-    assert identifier_type in IDENTIFIER_TYPE_SET, f"Unsupported parser type: {identifier_type}"
+    assert identifier_type in IDENTIFIER_TYPE_SET, "Unsupported parser type: {}".format(identifier_type)
 
     # Set parsing configuration.
     cfg = get_config(scope, identifier_type)