diff --git a/.github/workflows/pylint.yml b/.github/workflows/pylint.yml
index 8614c625c..99418a8a4 100644
--- a/.github/workflows/pylint.yml
+++ b/.github/workflows/pylint.yml
@@ -26,4 +26,4 @@ jobs:
           poetry install
       - name: Analysing the code with pylint
         run: |
-           poetry run pylint mirar --fail-under=9.64
+           poetry run pylint mirar --fail-under=9.66
diff --git a/mirar/processors/astromatic/sextractor/settings.py b/mirar/processors/astromatic/sextractor/settings.py
index 050c9e978..ab12f4f95 100644
--- a/mirar/processors/astromatic/sextractor/settings.py
+++ b/mirar/processors/astromatic/sextractor/settings.py
@@ -24,8 +24,8 @@ def write_param_file(param_path: str = default_param_path):
 ELLIPTICITY
 FWHM_IMAGE
 FLAGS"""
-    with open(param_path, "w") as pf:
-        pf.write(params)
+    with open(param_path, "w", encoding="utf8") as param_f:
+        param_f.write(params)
 
 
 def write_conv_file(conv_path: str = default_conv_path):
@@ -38,8 +38,8 @@ def write_conv_file(conv_path: str = default_conv_path):
 2 4 2
 1 2 1
 """
-    with open(conv_path, "w") as cf:
-        cf.write(convol)
+    with open(conv_path, "w", encoding="utf8") as conv_f:
+        conv_f.write(convol)
 
 
 def write_config_file(
@@ -125,5 +125,5 @@ def write_config_file(
 XML_NAME         sex.xml        # Filename for XML output
 SATUR_KEY        {saturation_key}       # keyword for saturation level (in ADUs)
 """
-    with open(config_path, "w") as pf:
-        pf.write(configs)
+    with open(config_path, "w", encoding="utf8") as conf_f:
+        conf_f.write(configs)
diff --git a/mirar/processors/astromatic/sextractor/sourceextractor.py b/mirar/processors/astromatic/sextractor/sourceextractor.py
index eadb04482..d2c078836 100644
--- a/mirar/processors/astromatic/sextractor/sourceextractor.py
+++ b/mirar/processors/astromatic/sextractor/sourceextractor.py
@@ -15,7 +15,7 @@
 
 # sextractor_cmd = os.getenv("SEXTRACTOR_CMD")
 
-default_saturation = 10000000000.0
+DEFAULT_SATURATION = 10000000000.0
 default_config_path = os.path.join(astromatic_config_dir, "astrom.sex")
 default_param_path = os.path.join(astromatic_config_dir, "astrom.param")
 default_filter_name = os.path.join(astromatic_config_dir, "default.conv")
@@ -30,7 +30,7 @@ class SextractorError(ExecutionError):
 
 # Either run sextractor locally or on docker
 
-local_sextractor = True
+LOCAL_SEXTRACTOR = True
 
 
 # Functions to parse commands and generate appropriate sextractor files
@@ -132,7 +132,7 @@ def run_sextractor(images: str | list, output_dir: str, *args, **kwargs):
 def run_sextractor_single(
     img: str,
     output_dir: str,
-    catalog_name: Optional[str] = None,
+    catalog_name: Optional[Path] = None,
     config: str = default_config_path,
     parameters_name: str = default_param_path,
     filter_name: str = default_filter_name,
@@ -205,10 +205,11 @@ def run_sextractor_single(
 
     if mag_zp is not None:
         cmd += f" -MAG_ZEROPOINT {mag_zp}"
+
     try:
         execute(cmd, output_dir)
-    except ExecutionError as e:
-        raise SextractorError(e)
+    except ExecutionError as exc:
+        raise SextractorError(exc) from exc
 
     if write_regions:
         output_catalog = get_table_from_ldac(catalog_name)
diff --git a/mirar/processors/astrometry/autoastrometry/autoastrometry.py b/mirar/processors/astrometry/autoastrometry/autoastrometry.py
index d288dff04..896fea296 100644
--- a/mirar/processors/astrometry/autoastrometry/autoastrometry.py
+++ b/mirar/processors/astrometry/autoastrometry/autoastrometry.py
@@ -32,7 +32,7 @@
     write_config_file,
     write_param_file,
 )
-from mirar.processors.astromatic.sextractor.sourceextractor import default_saturation
+from mirar.processors.astromatic.sextractor.sourceextractor import DEFAULT_SATURATION
 from mirar.processors.astrometry.autoastrometry.crossmatch import (
     crosscheck_source_lists,
     distance_match,
@@ -85,7 +85,7 @@ def autoastrometry(
     outfile: str = "",
     output_dir: str = base_output_dir,
     temp_file: Optional[str] = None,
-    saturation: float = default_saturation,
+    saturation: float = DEFAULT_SATURATION,
     no_rot: bool = False,
     min_fwhm: float = DEFAULT_MIN_FWHM,
     max_fwhm: float = DEFAULT_MAX_FWHM,
@@ -557,7 +557,7 @@ def run_autoastrometry_single(
     overwrite: bool = False,
     outfile: Optional[str] = None,
     output_dir: str = base_output_dir,
-    saturation: float = default_saturation,
+    saturation: float = DEFAULT_SATURATION,
     no_rot: bool = False,
     write_crosscheck_files: bool = False,
 ):
@@ -668,7 +668,7 @@ def run_autoastrometry_batch(
     overwrite: bool = False,
     outfile: Optional[str] = None,
     output_dir: str = base_output_dir,
-    saturation: float = default_saturation,
+    saturation: float = DEFAULT_SATURATION,
     no_rot: bool = False,
     write_crosscheck_files: bool = False,
 ):
diff --git a/mirar/processors/astrometry/autoastrometry/detect.py b/mirar/processors/astrometry/autoastrometry/detect.py
index a8def018e..9629b877c 100644
--- a/mirar/processors/astrometry/autoastrometry/detect.py
+++ b/mirar/processors/astrometry/autoastrometry/detect.py
@@ -16,7 +16,7 @@
     default_starnnw_path,
 )
 from mirar.processors.astromatic.sextractor.sourceextractor import (
-    default_saturation,
+    DEFAULT_SATURATION,
     run_sextractor_single,
 )
 from mirar.processors.astrometry.autoastrometry.errors import AstrometrySourceError
@@ -43,7 +43,7 @@ def get_img_src_list(
     min_fwhm: float = DEFAULT_MIN_FWHM,
     max_fwhm: float = DEFAULT_MAX_FWHM,
     max_ellip: float = 0.5,
-    saturation: float = default_saturation,
+    saturation: float = DEFAULT_SATURATION,
     config_path: str = default_config_path,
     output_catalog: Optional[str | Path] = None,
     write_crosscheck_files: bool = False,