Fix linting and type errors

1 files changed, 6 insertions, 9 deletions

diff --git a/quality_control/average.py b/quality_control/average.py
index 06b0a47..2b098db 100644
--- a/quality_control/average.py
+++ b/quality_control/average.py
@@ -1,19 +1,16 @@
 """Contain logic for checking average files"""
-import re
 from typing import Union
 
+from .utils import cell_error
 from .errors import InvalidValue
 
 def invalid_value(line_number: int, column_number: int, val: str) -> Union[
         InvalidValue, None]:
     """Return an `InvalidValue` object if `val` is not a valid "averages"
     value."""
-    if re.search(r"^[0-9]+\.[0-9]{3}$", val):
-        return None
-    if re.search(r"^0\.0+$", val) or re.search("^0+$", val):
-        return None
-    return InvalidValue(
-        line_number, column_number, val, (
+    return cell_error(
+        r"^[0-9]+\.[0-9]{3}$", val, line=line_number, column=column_number,
+        value=val, message=(
             f"Invalid value '{val}'. "
-            "Expected string representing a number with exactly three decimal "
-            "places."))
+            "Expected string representing a number with exactly three "
+            "decimal places."))