diff --git a/gpm_api/bucket/writers.py b/gpm_api/bucket/writers.py
index 968c9595..154a8ead 100644
--- a/gpm_api/bucket/writers.py
+++ b/gpm_api/bucket/writers.py
@@ -470,6 +470,7 @@ def write_granules_bucket(
 
 #     return None
 
+
 ####--------------------------------------------------------------------------.
 #### GPM Datasets Routines
 @print_task_elapsed_time(prefix="Dataset Bucket Operation Terminated.")
@@ -491,7 +492,6 @@ def write_dataset_bucket(
     use_threads=True,
     **writer_kwargs,
 ):
-
     df = convert_ds_to_df(
         ds=ds,
         preprocessing_function=preprocessing_function,
diff --git a/gpm_api/dataset/crs.py b/gpm_api/dataset/crs.py
index 30c72a51..027d70e1 100644
--- a/gpm_api/dataset/crs.py
+++ b/gpm_api/dataset/crs.py
@@ -317,7 +317,6 @@ def _add_proj_coords_attrs(ds, crs) -> xr.Dataset:
 
     # If available, add attributes
     if x_dim is not None and y_dim is not None:
-
         # Retrieve existing coordinate attributes
         src_x_coord_attrs = dict(ds[x_dim].attrs)
         src_y_coord_attrs = dict(ds[y_dim].attrs)
diff --git a/gpm_api/io/download.py b/gpm_api/io/download.py
index bb40b62d..66d5b65f 100644
--- a/gpm_api/io/download.py
+++ b/gpm_api/io/download.py
@@ -258,7 +258,6 @@ def _download_files(
     progress_bar=True,
     verbose=False,
 ):
-
     if transfer_tool == "curl":
         list_cmd = [
             curl_cmd(src_path, dst_path, username, username)
diff --git a/gpm_api/old_dataset/reader.py b/gpm_api/old_dataset/reader.py
index fbfc9561..bd55b947 100644
--- a/gpm_api/old_dataset/reader.py
+++ b/gpm_api/old_dataset/reader.py
@@ -145,7 +145,6 @@ def _get_granule_info(filepath, scan_mode, variables, groups):
     """Retrieve coordinates, attributes and valid variables and groups from the HDF file."""
     # Open HDF5 file
     with h5py.File(filepath, "r", locking=False, swmr=SWMR) as hdf:
-
         # Get coordinates
         coords = get_coords(hdf, scan_mode)
 
diff --git a/gpm_api/scripts/download_gpm_daily_data.py b/gpm_api/scripts/download_gpm_daily_data.py
index b4c953d3..b94f603c 100644
--- a/gpm_api/scripts/download_gpm_daily_data.py
+++ b/gpm_api/scripts/download_gpm_daily_data.py
@@ -14,6 +14,7 @@
 warnings.filterwarnings("ignore")
 sys.tracebacklimit = 0  # avoid full traceback error if occur
 
+
 # -------------------------------------------------------------------------.
 # Click Command Line Interface decorator
 @click.command()
diff --git a/gpm_api/scripts/download_gpm_files.py b/gpm_api/scripts/download_gpm_files.py
index eff74bdb..905c54db 100644
--- a/gpm_api/scripts/download_gpm_files.py
+++ b/gpm_api/scripts/download_gpm_files.py
@@ -12,6 +12,7 @@
 warnings.filterwarnings("ignore")
 sys.tracebacklimit = 0  # avoid full traceback error if occur
 
+
 # -------------------------------------------------------------------------.
 # Click Command Line Interface decorator
 @click.command()
diff --git a/gpm_api/scripts/download_gpm_monthly_data.py b/gpm_api/scripts/download_gpm_monthly_data.py
index e8a97abb..b7d6c0f3 100644
--- a/gpm_api/scripts/download_gpm_monthly_data.py
+++ b/gpm_api/scripts/download_gpm_monthly_data.py
@@ -14,6 +14,7 @@
 warnings.filterwarnings("ignore")
 sys.tracebacklimit = 0  # avoid full traceback error if occur
 
+
 # -------------------------------------------------------------------------.
 # Click Command Line Interface decorator
 @click.command()
diff --git a/gpm_api/tests/0_tmp/dataset/0_create_test_files.py b/gpm_api/tests/0_tmp/dataset/0_create_test_files.py
index de28bd40..c4907774 100644
--- a/gpm_api/tests/0_tmp/dataset/0_create_test_files.py
+++ b/gpm_api/tests/0_tmp/dataset/0_create_test_files.py
@@ -19,7 +19,6 @@ def copy_attributes(original, copy):
 def copy_datasets_recursive(original_group, subset_group, desired_size=10):
     for name, item in original_group.items():
         if isinstance(item, h5py.Dataset):
-
             # Determine the subset shape (2 indices per dimension)
             subset_shape = tuple(min(3, dim_size) for dim_size in item.shape)
 
@@ -38,7 +37,6 @@ def copy_datasets_recursive(original_group, subset_group, desired_size=10):
                 subset_dataset.compression_opts = item.compression_opts
 
         elif isinstance(item, h5py.Group):
-
             # If the item is a group, create a corresponding group in the subset file and copy its datasets recursively
             subgroup = subset_group.create_group(name)
             # Copy group attributes
diff --git a/gpm_api/utils/utils_HDF5.py b/gpm_api/utils/utils_HDF5.py
index cb0da16e..5de8fffa 100644
--- a/gpm_api/utils/utils_HDF5.py
+++ b/gpm_api/utils/utils_HDF5.py
@@ -221,6 +221,7 @@ def h5dump(filepath, group="/", dataset_attrs=True, group_attrs=True):
 #             for item in x.keys():
 #                 print_hdf5_shape(x[item])
 
+
 # -----------------------------------------------------------------------------.
 def hdf5_objects_names(hdf):
     l_objs = []
diff --git a/gpm_api/visualization/orbit.py b/gpm_api/visualization/orbit.py
index 9ab06c4c..ae7b6288 100644
--- a/gpm_api/visualization/orbit.py
+++ b/gpm_api/visualization/orbit.py
@@ -188,7 +188,6 @@ def wrapper(*args, **kwargs):
 
         # - Call the function over each slice
         for i, slc in enumerate(list_slices):
-
             # Retrieve contiguous data array
             tmp_da = da.isel(along_track=slc)
 
diff --git a/gpm_api/visualization/plot.py b/gpm_api/visualization/plot.py
index 5832999b..a921443e 100644
--- a/gpm_api/visualization/plot.py
+++ b/gpm_api/visualization/plot.py
@@ -447,7 +447,6 @@ def plot_map(
     cbar_kwargs={},
     **plot_kwargs,
 ):
-
     from gpm_api.checks import is_grid, is_orbit
 
     from .grid import plot_grid_map