docs: docstrings improved.

pyerrors/input/openQCD.py

@@ -367,9 +367,9 @@ def read_qtop(path, prefix, c, dtr_cnfg=1, version="1.2", **kwargs):
 
     Parameters
     ----------
-    path:
+    path : str
         path of the measurement files
-    prefix:
+    prefix : str
         prefix of the measurement files, e.g. <prefix>_id0_r0.ms.dat
     c : double
         Smearing radius in units of the lattice extent, c = sqrt(8 t0) / L
@@ -545,11 +545,19 @@ def read_qtop(path, prefix, c, dtr_cnfg=1, version="1.2", **kwargs):
 
 
 def read_qtop_sector(target=0, **kwargs):
-    """target: int
-            specifies the topological sector to be reweighted to (default 0)
+    """Constructs reweighting factors to a specified topological sector.
+
+    Parameters
+    ----------
+    target : int
+        Specifies the topological sector to be reweighted to (default 0)
     q_top : Obs
-        alternatively takes args of read_qtop method as kwargs
+        Alternatively takes args of read_qtop method as kwargs
     """
+
+    if not isinstance(target, int):
+        raise Exception("'target' has to be an integer.")
+
     if "q_top" in kwargs:
         qtop = kwargs.get("q_top")
     else:

pyerrors/misc.py

@@ -79,7 +79,7 @@ def _assert_equal_properties(ol, otype=Obs):
         if not isinstance(o, otype):
             raise Exception("Wrong data type in list.")
         if not ol[0].is_merged == o.is_merged:
-            raise Exception("All Obs in list have to be defined on the same set of configs.")
+            raise Exception("All Obs in list have to have the same state 'is_merged'.")
         if not ol[0].reweighted == o.reweighted:
             raise Exception("All Obs in list have to have the same property 'reweighted'.")
         if not ol[0].e_content == o.e_content: