Fix lint errors in CI (#119)

* Fix lint errors in CI

* Initialize array correctly

* Add no-self-use check

pyproject.toml

@@ -103,14 +103,14 @@ warn_return_any = true
 warn_unused_configs = true
 ignore_missing_imports = true
 
-[tool.pylint.main]
+[tool.pylint]
 py-version = "3.9"
+load-plugins = ["pylint.extensions.no_self_use"]
 
 [tool.pylint."messages control"]
 disable = ["all"]
 enable = [
     "reimported",
-    "no-self-use",
     "no-else-raise",
     "redefined-argument-from-local",
     "redefined-builtin",

qiskit_addon_sqd/counts.py

@@ -123,10 +123,9 @@ def generate_counts_bipartite_hamming(
         dn_flips = rng.choice(np.arange(num_bits // 2), hamming_left, replace=False).astype("int")
 
         # Create a bitstring with the chosen bits flipped
-        bts_arr = np.zeros(num_bits)
+        bts_arr = np.zeros(num_bits, dtype=int)
         bts_arr[dn_flips] = 1
         bts_arr[up_flips + num_bits // 2] = 1
-        bts_arr = bts_arr.astype("int")
         bts = "".join("1" if bit else "0" for bit in bts_arr)
 
         # Add the bitstring to the sample dict