clean up sfcf input types

pyerrors/input/sfcf.py

@@ -7,7 +7,7 @@ from ..obs import Obs
 from .utils import sort_names, check_idl
 import itertools
 from numpy import ndarray
-from typing import Any, Union, Optional
+from typing import Any, Union, Optional, Literal
 
 
 sep = "/"
@@ -143,14 +143,14 @@ def read_sfcf_multi(path: str, prefix: str, name_list: list[str], quarks_list: l
             dict[name][quarks][offset][wf][wf2] = list[Obs]
     """
 
-    if kwargs.get('im'):
+    im: Literal[1, 0] = 0
+    part: str = 'real'
+
+    if kwargs.get('im', False):
         im = 1
         part = 'imaginary'
-    else:
-        im = 0
-        part = 'real'
 
-    known_versions = ["0.0", "1.0", "2.0", "1.0c", "2.0c", "1.0a", "2.0a"]
+    known_versions: list = ["0.0", "1.0", "2.0", "1.0c", "2.0c", "1.0a", "2.0a"]
 
     if version not in known_versions:
         raise Exception("This version is not known!")
@@ -165,9 +165,9 @@ def read_sfcf_multi(path: str, prefix: str, name_list: list[str], quarks_list: l
     else:
         compact = False
         appended = False
-    ls = kwargs.get("replica")
-    if ls is None:
-        ls = []
+    ls: list = kwargs.get("replica", [])
+    if ls == []:
+        
         for (dirpath, dirnames, filenames) in os.walk(path):
             if not appended:
                 ls.extend(dirnames)
@@ -180,7 +180,7 @@ def read_sfcf_multi(path: str, prefix: str, name_list: list[str], quarks_list: l
         for exc in ls:
             if not fnmatch.fnmatch(exc, prefix + '*'):
                 ls = list(set(ls) - set([exc]))
-
+    replica: int = 0
     if not appended:
         ls = sort_names(ls)
         replica = len(ls)
@@ -246,6 +246,7 @@ def read_sfcf_multi(path: str, prefix: str, name_list: list[str], quarks_list: l
     for key in needed_keys:
         internal_ret_dict[key] = []
 
+    rep_idl: list = []
     if not appended:
         for i, item in enumerate(ls):
             rep_path = path + '/' + item
@@ -318,7 +319,7 @@ def read_sfcf_multi(path: str, prefix: str, name_list: list[str], quarks_list: l
                         internal_ret_dict[key][t].append(rep_deltas[key][t])
             else:
                 for key in needed_keys:
-                    rep_data = []
+                    rep_data: list = []
                     name = _key2specs(key)[0]
                     for subitem in sub_ls:
                         cfg_path = path + '/' + item + '/' + subitem
@@ -350,6 +351,7 @@ def read_sfcf_multi(path: str, prefix: str, name_list: list[str], quarks_list: l
             deltas = []
             for rep, file in enumerate(name_ls):
                 rep_idl = []
+                rep_data = []
                 filename = path + '/' + file
                 T, rep_idl, rep_data = _read_append_rep(filename, pattern, intern[name]['b2b'], cfg_separator, im, intern[name]['single'])
                 if rep == 0:
@@ -362,12 +364,12 @@ def read_sfcf_multi(path: str, prefix: str, name_list: list[str], quarks_list: l
                 if name == name_list[0]:
                     idl.append(rep_idl)
 
-    if kwargs.get("check_configs") is True:
+    che: Union[list[list[int]], None] = kwargs.get("check_configs", None)
+    if che is not None:
         if not silent:
             print("Checking for missing configs...")
-        che = kwargs.get("check_configs")
         if not (len(che) == len(idl)):
-            raise Exception("check_configs has to be the same length as replica!")
+            raise Exception("check_configs has to have an entry for each replicum!")
         for r in range(len(idl)):
             if not silent:
                 print("checking " + new_names[r])