diff --git a/icepyx/core/APIformatting.py b/icepyx/core/APIformatting.py
index 55d49f84c..b5d31bdfa 100644
--- a/icepyx/core/APIformatting.py
+++ b/icepyx/core/APIformatting.py
@@ -205,7 +205,6 @@ class Parameters:
     """
 
     def __init__(self, partype, values=None, reqtype=None):
-
         assert partype in [
             "CMR",
             "required",
diff --git a/icepyx/core/auth.py b/icepyx/core/auth.py
index 7c36126f9..cf771f420 100644
--- a/icepyx/core/auth.py
+++ b/icepyx/core/auth.py
@@ -4,14 +4,16 @@
 
 import earthaccess
 
+
 class AuthenticationError(Exception):
-    '''
+    """
     Raised when an error is encountered while authenticating Earthdata credentials
-    '''
+    """
+
     pass
 
 
-class EarthdataAuthMixin():
+class EarthdataAuthMixin:
     """
     This mixin class generates the needed authentication sessions and tokens, including for NASA Earthdata cloud access.
     Authentication is completed using the [earthaccess library](https://nsidc.github.io/earthaccess/).
@@ -21,26 +23,27 @@ class EarthdataAuthMixin():
         3. Storing credentials in a .netrc file (not recommended for security reasons)
     More details on using these methods is available in the [earthaccess documentation](https://nsidc.github.io/earthaccess/tutorials/restricted-datasets/#auth).
 
-    This class can be inherited by any other class that requires authentication. For 
-    example, the `Query` class inherits this one, and so a Query object has the 
+    This class can be inherited by any other class that requires authentication. For
+    example, the `Query` class inherits this one, and so a Query object has the
     `.session` property. The method `earthdata_login()` is included for backwards compatibility.
-    
+
     The class can be created without any initialization parameters, and the properties will
-    be populated when they are called. It can alternately be initialized with an 
-    earthaccess.auth.Auth object, which will then be used to create a session or 
+    be populated when they are called. It can alternately be initialized with an
+    earthaccess.auth.Auth object, which will then be used to create a session or
     s3login_credentials as they are called.
-    
+
     Parameters
     ----------
     auth : earthaccess.auth.Auth, default None
         Optional parameter to initialize an object with existing credentials.
-    
+
     Examples
     --------
     >>> a = EarthdataAuthMixin()
     >>> a.session # doctest: +SKIP
     >>> a.s3login_credentials # doctest: +SKIP
     """
+
     def __init__(self, auth=None):
         self._auth = copy.deepcopy(auth)
         # initializatin of session and s3 creds is not allowed because those are generated
@@ -58,25 +61,27 @@ def __str__(self):
 
     @property
     def auth(self):
-        '''
-        Authentication object returned from earthaccess.login() which stores user authentication. 
-        '''
+        """
+        Authentication object returned from earthaccess.login() which stores user authentication.
+        """
         # Only login the first time .auth is accessed
         if self._auth is None:
             auth = earthaccess.login()
             # check for a valid auth response
             if auth.authenticated is False:
-                raise AuthenticationError('Earthdata authentication failed. Check output for error message')
+                raise AuthenticationError(
+                    "Earthdata authentication failed. Check output for error message"
+                )
             else:
                 self._auth = auth
-                
+
         return self._auth
 
     @property
     def session(self):
-        '''
+        """
         Earthaccess session object for connecting to Earthdata resources.
-        '''
+        """
         # Only generate a session the first time .session is accessed
         if self._session is None:
             self._session = self.auth.get_session()
@@ -84,24 +89,26 @@ def session(self):
 
     @property
     def s3login_credentials(self):
-        '''
+        """
         A dictionary which stores login credentials for AWS s3 access. This property is accessed
         if using AWS cloud data.
-        
+
         Because s3 tokens are only good for one hour, this function will automatically check if an
         hour has elapsed since the last token use and generate a new token if necessary.
-        '''
-        
+        """
+
         def set_s3_creds():
-            ''' Store s3login creds from `auth`and reset the last updated timestamp'''
+            """Store s3login creds from `auth`and reset the last updated timestamp"""
             self._s3login_credentials = self.auth.get_s3_credentials(daac="NSIDC")
             self._s3_initial_ts = datetime.datetime.now()
-            
+
         # Only generate s3login_credentials the first time credentials are accessed, or if an hour
-        # has passed since the last login    
+        # has passed since the last login
         if self._s3login_credentials is None:
             set_s3_creds()
-        elif (datetime.datetime.now() - self._s3_initial_ts) >= datetime.timedelta(hours=1):
+        elif (datetime.datetime.now() - self._s3_initial_ts) >= datetime.timedelta(
+            hours=1
+        ):
             set_s3_creds()
         return self._s3login_credentials
 
@@ -109,7 +116,7 @@ def earthdata_login(self, uid=None, email=None, s3token=None, **kwargs) -> None:
         """
         Authenticate with NASA Earthdata to enable data ordering and download.
         Credential storage details are described in the EathdataAuthMixin class section.
-        
+
         **Note:** This method is maintained for backward compatibility. It is no longer required to explicitly run `.earthdata_login()`. Authentication will be performed by the module as needed when `.session` or `.s3login_credentials` are accessed.
 
         Parameters
@@ -134,12 +141,14 @@ def earthdata_login(self, uid=None, email=None, s3token=None, **kwargs) -> None:
 
         """
         warnings.warn(
-                "It is no longer required to explicitly run the `.earthdata_login()` method. Authentication will be performed by the module as needed.",
-                DeprecationWarning, stacklevel=2
-            )
-        
+            "It is no longer required to explicitly run the `.earthdata_login()` method. Authentication will be performed by the module as needed.",
+            DeprecationWarning,
+            stacklevel=2,
+        )
+
         if uid != None or email != None or s3token != None:
             warnings.warn(
                 "The user id (uid) and/or email keyword arguments are no longer required.",
-                DeprecationWarning, stacklevel=2
+                DeprecationWarning,
+                stacklevel=2,
             )
diff --git a/icepyx/core/exceptions.py b/icepyx/core/exceptions.py
index a36a1b645..d20bbfe61 100644
--- a/icepyx/core/exceptions.py
+++ b/icepyx/core/exceptions.py
@@ -2,6 +2,7 @@ class DeprecationError(Exception):
     """
     Class raised for use of functionality that is no longer supported by icepyx.
     """
+
     pass
 
 
@@ -27,5 +28,3 @@ def __init__(
 
     def __str__(self):
         return f"{self.msgtxt}: {self.errmsg}"
-
-    
diff --git a/icepyx/core/icesat2data.py b/icepyx/core/icesat2data.py
index cebce4160..aa35fd433 100644
--- a/icepyx/core/icesat2data.py
+++ b/icepyx/core/icesat2data.py
@@ -2,8 +2,9 @@
 
 
 class Icesat2Data:
-    def __init__(self,):
-
+    def __init__(
+        self,
+    ):
         warnings.filterwarnings("always")
         warnings.warn(
             "DEPRECATED. Please use icepyx.Query to create a download data object (all other functionality is the same)",
diff --git a/icepyx/core/query.py b/icepyx/core/query.py
index 4ffe4c241..d857bbb3d 100644
--- a/icepyx/core/query.py
+++ b/icepyx/core/query.py
@@ -351,9 +351,9 @@ class Query(GenQuery, EarthdataAuthMixin):
     files : string, default None
         A placeholder for future development. Not used for any purposes yet.
     auth : earthaccess.auth.Auth, default None
-        An earthaccess authentication object. Available as an argument so an existing 
-        earthaccess.auth.Auth object can be used for authentication. If not given, a new auth 
-        object will be created whenever authentication is needed. 
+        An earthaccess authentication object. Available as an argument so an existing
+        earthaccess.auth.Auth object can be used for authentication. If not given, a new auth
+        object will be created whenever authentication is needed.
 
     Returns
     -------
@@ -411,7 +411,6 @@ def __init__(
         auth=None,
         **kwargs,
     ):
-
         # Check necessary combination of input has been specified
         if (
             (product is None or spatial_extent is None)
diff --git a/icepyx/core/spatial.py b/icepyx/core/spatial.py
index 7702acdf2..c34e928ed 100644
--- a/icepyx/core/spatial.py
+++ b/icepyx/core/spatial.py
@@ -80,7 +80,6 @@ def geodataframe(extent_type, spatial_extent, file=False, xdateline=None):
     # DevGoal: the crs setting and management needs to be improved
 
     elif extent_type == "polygon" and file == False:
-
         # if spatial_extent is already a Polygon
         if isinstance(spatial_extent, Polygon):
             spatial_extent_geom = spatial_extent
@@ -248,7 +247,6 @@ def validate_polygon_pairs(spatial_extent):
     if (spatial_extent[0][0] != spatial_extent[-1][0]) or (
         spatial_extent[0][1] != spatial_extent[-1][1]
     ):
-
         # Throw a warning
         warnings.warn(
             "WARNING: Polygon's first and last point's coordinates differ,"
@@ -436,7 +434,6 @@ def __init__(self, spatial_extent, **kwarg):
 
         # Check if spatial_extent is a list of coordinates (bounding box or polygon)
         if isinstance(spatial_extent, (list, np.ndarray)):
-
             # bounding box
             if len(spatial_extent) == 4 and all(
                 isinstance(i, scalar_types) for i in spatial_extent
diff --git a/icepyx/core/temporal.py b/icepyx/core/temporal.py
index c7e2dda1c..67f59882a 100644
--- a/icepyx/core/temporal.py
+++ b/icepyx/core/temporal.py
@@ -51,7 +51,6 @@ def convert_string_to_date(date):
 
 
 def check_valid_date_range(start, end):
-
     """
     Helper function for checking if a date range is valid.
 
@@ -89,7 +88,6 @@ def check_valid_date_range(start, end):
 
 
 def validate_times(start_time, end_time):
-
     """
     Validates the start and end times passed into __init__ and returns them as datetime.time objects.
 
@@ -145,7 +143,6 @@ def validate_times(start_time, end_time):
 
 
 def validate_date_range_datestr(date_range, start_time=None, end_time=None):
-
     """
     Validates a date range provided in the form of a list of strings.
 
@@ -190,7 +187,6 @@ def validate_date_range_datestr(date_range, start_time=None, end_time=None):
 
 
 def validate_date_range_datetime(date_range, start_time=None, end_time=None):
-
     """
     Validates a date range provided in the form of a list of datetimes.
 
@@ -230,7 +226,6 @@ def validate_date_range_datetime(date_range, start_time=None, end_time=None):
 
 
 def validate_date_range_date(date_range, start_time=None, end_time=None):
-
     """
     Validates a date range provided in the form of a list of datetime.date objects.
 
@@ -268,7 +263,6 @@ def validate_date_range_date(date_range, start_time=None, end_time=None):
 
 
 def validate_date_range_dict(date_range, start_time=None, end_time=None):
-
     """
     Validates a date range provided in the form of a dict with the following keys:
 
@@ -330,7 +324,6 @@ def validate_date_range_dict(date_range, start_time=None, end_time=None):
 
     # if is string date
     elif isinstance(_start_date, str):
-
         _start_date = convert_string_to_date(_start_date)
         _start_date = dt.datetime.combine(_start_date, start_time)
 
@@ -411,7 +404,6 @@ def __init__(self, date_range, start_time=None, end_time=None):
         """
 
         if len(date_range) == 2:
-
             # date range is provided as dict of strings, dates, or datetimes
             if isinstance(date_range, dict):
                 self._start, self._end = validate_date_range_dict(
diff --git a/icepyx/core/validate_inputs.py b/icepyx/core/validate_inputs.py
index d74768eea..a69f045fb 100644
--- a/icepyx/core/validate_inputs.py
+++ b/icepyx/core/validate_inputs.py
@@ -105,15 +105,17 @@ def tracks(track):
 
         return track_list
 
+
 def check_s3bucket(path):
     """
     Check if the given path is an s3 path. Raise a warning if the data being referenced is not
     in the NSIDC bucket
     """
-    split_path = path.split('/')
-    if split_path[0] == 's3:' and split_path[2] != 'nsidc-cumulus-prod-protected':
+    split_path = path.split("/")
+    if split_path[0] == "s3:" and split_path[2] != "nsidc-cumulus-prod-protected":
         warnings.warn(
-            's3 data being read from outside the NSIDC data bucket. Icepyx can '
-            'read this data, but available data lists may not be accurate.', stacklevel=2
+            "s3 data being read from outside the NSIDC data bucket. Icepyx can "
+            "read this data, but available data lists may not be accurate.",
+            stacklevel=2,
         )
     return path
diff --git a/icepyx/core/variables.py b/icepyx/core/variables.py
index 4c52003df..4dd5444fe 100644
--- a/icepyx/core/variables.py
+++ b/icepyx/core/variables.py
@@ -29,7 +29,7 @@ class Variables(EarthdataAuthMixin):
     contained in ICESat-2 products.
 
     Parameters
-    ---------- 
+    ----------
     vartype : string
         This argument is deprecated. The vartype will be inferred from data_source.
         One of ['order', 'file'] to indicate the source of the input variables.
@@ -49,9 +49,9 @@ class Variables(EarthdataAuthMixin):
     wanted : dictionary, default None
         As avail, but for the desired list of variables
     auth : earthaccess.auth.Auth, default None
-        An earthaccess authentication object. Available as an argument so an existing 
-        earthaccess.auth.Auth object can be used for authentication. If not given, a new auth 
-        object will be created whenever authentication is needed. 
+        An earthaccess authentication object. Available as an argument so an existing
+        earthaccess.auth.Auth object can be used for authentication. If not given, a new auth
+        object will be created whenever authentication is needed.
     """
 
     def __init__(
@@ -65,28 +65,28 @@ def __init__(
         auth=None,
     ):
         # Deprecation error
-        if vartype in ['order', 'file']:
+        if vartype in ["order", "file"]:
             raise DeprecationError(
-                'It is no longer required to specify the variable type `vartype`. Instead please ',
-                'provide either the path to a local file (arg: `path`) or the product you would ',
-                'like variables for (arg: `product`).'
+                "It is no longer required to specify the variable type `vartype`. Instead please ",
+                "provide either the path to a local file (arg: `path`) or the product you would ",
+                "like variables for (arg: `product`).",
             )
-        
+
         if path and product:
             raise TypeError(
-                'Please provide either a path or a product. If a path is provided ',
-                'variables will be read from the file. If a product is provided all available ',
-                'variables for that product will be returned.'
+                "Please provide either a path or a product. If a path is provided ",
+                "variables will be read from the file. If a product is provided all available ",
+                "variables for that product will be returned.",
             )
 
         # initialize authentication properties
         EarthdataAuthMixin.__init__(self, auth=auth)
-        
+
         # Set the product and version from either the input args or the file
         if path:
             self._path = val.check_s3bucket(path)
             # Set up auth
-            if self._path.startswith('s3'):
+            if self._path.startswith("s3"):
                 auth = self.auth
             else:
                 auth = None
@@ -98,15 +98,19 @@ def __init__(
             self._product = is2ref._validate_product(product)
             # Check for valid version string
             # If version is not specified by the user assume the most recent version
-            self._version = val.prod_version(is2ref.latest_version(self._product), version)
+            self._version = val.prod_version(
+                is2ref.latest_version(self._product), version
+            )
         else:
-            raise TypeError('Either a path or a product need to be given as input arguments.')
-        
+            raise TypeError(
+                "Either a path or a product need to be given as input arguments."
+            )
+
         self._avail = avail
         self.wanted = wanted
 
         # DevGoal: put some more/robust checks here to assess validity of inputs
-    
+
     @property
     def path(self):
         if self._path:
@@ -114,15 +118,14 @@ def path(self):
         else:
             path = None
         return path
-        
+
     @property
     def product(self):
         return self._product
-        
+
     @property
     def version(self):
         return self._version
-        
 
     def avail(self, options=False, internal=False):
         """
@@ -143,7 +146,7 @@ def avail(self, options=False, internal=False):
         """
 
         if not hasattr(self, "_avail") or self._avail == None:
-            if not hasattr(self, 'path') or self.path.startswith('s3'):
+            if not hasattr(self, "path") or self.path.startswith("s3"):
                 self._avail = is2ref._get_custom_options(
                     self.session, self.product, self.version
                 )["variables"]
@@ -628,7 +631,6 @@ def remove(self, all=False, var_list=None, beam_list=None, keyword_list=None):
                             for bkw in beam_list:
                                 if bkw in vpath_kws:
                                     for kw in keyword_list:
-
                                         if kw in vpath_kws:
                                             self.wanted[vkey].remove(vpath)
                         except TypeError:
diff --git a/icepyx/core/visualization.py b/icepyx/core/visualization.py
index 32c81e3e7..001ae178e 100644
--- a/icepyx/core/visualization.py
+++ b/icepyx/core/visualization.py
@@ -142,7 +142,6 @@ def __init__(
         cycles=None,
         tracks=None,
     ):
-
         if query_obj:
             pass
         else:
@@ -241,7 +240,6 @@ def query_icesat2_filelist(self) -> tuple:
         is2_file_list = []
 
         for bbox_i in bbox_list:
-
             try:
                 region = ipx.Query(
                     self.product,
@@ -364,7 +362,6 @@ def request_OA_data(self, paras) -> da.array:
 
         # get data we need (with the correct date)
         try:
-
             df_series = df.query(expr="date == @Date").iloc[0]
             beam_data = df_series.beams
 
@@ -483,7 +480,6 @@ def viz_elevation(self) -> (hv.DynamicMap, hv.Layout):
             return (None,) * 2
 
         else:
-
             cols = (
                 ["lat", "lon", "elevation", "canopy", "rgt", "cycle"]
                 if self.product == "ATL08"
diff --git a/icepyx/tests/conftest.py b/icepyx/tests/conftest.py
index fca31847a..9ce8e4081 100644
--- a/icepyx/tests/conftest.py
+++ b/icepyx/tests/conftest.py
@@ -2,6 +2,7 @@
 import pytest
 from unittest import mock
 
+
 # PURPOSE: mock environmental variables
 @pytest.fixture(scope="session", autouse=True)
 def mock_settings_env_vars():
diff --git a/icepyx/tests/test_APIformatting.py b/icepyx/tests/test_APIformatting.py
index 83e88a131..213c1cf8a 100644
--- a/icepyx/tests/test_APIformatting.py
+++ b/icepyx/tests/test_APIformatting.py
@@ -11,6 +11,7 @@
 
 # CMR temporal and spatial formats --> what's the best way to compare formatted text? character by character comparison of strings?
 
+
 ########## _fmt_temporal ##########
 def test_time_fmt():
     obs = apifmt._fmt_temporal(
diff --git a/icepyx/tests/test_Earthdata.py b/icepyx/tests/test_Earthdata.py
index 8ad883e6a..60b92f621 100644
--- a/icepyx/tests/test_Earthdata.py
+++ b/icepyx/tests/test_Earthdata.py
@@ -8,6 +8,7 @@
 import shutil
 import warnings
 
+
 # PURPOSE: test different authentication methods
 @pytest.fixture(scope="module", autouse=True)
 def setup_earthdata():
@@ -65,7 +66,6 @@ def earthdata_login(uid=None, pwd=None, email=None, s3token=False) -> bool:
         url = "urs.earthdata.nasa.gov"
         mock_uid, _, mock_pwd = netrc.netrc(netrc).authenticators(url)
     except:
-
         mock_uid = os.environ.get("EARTHDATA_USERNAME")
         mock_pwd = os.environ.get("EARTHDATA_PASSWORD")
 
diff --git a/icepyx/tests/test_auth.py b/icepyx/tests/test_auth.py
index 6ac77c864..8507b1e40 100644
--- a/icepyx/tests/test_auth.py
+++ b/icepyx/tests/test_auth.py
@@ -8,30 +8,35 @@
 
 @pytest.fixture()
 def auth_instance():
-    '''
+    """
     An EarthdatAuthMixin object for each of the tests. Default scope is function
     level, so a new instance should be created for each of the tests.
-    '''
+    """
     return EarthdataAuthMixin()
 
+
 # Test that .session creates a session
 def test_get_session(auth_instance):
     assert isinstance(auth_instance.session, requests.sessions.Session)
 
+
 # Test that .s3login_credentials creates a dict with the correct keys
 def test_get_s3login_credentials(auth_instance):
     assert isinstance(auth_instance.s3login_credentials, dict)
-    expected_keys = set(['accessKeyId', 'secretAccessKey', 'sessionToken', 
-                         'expiration'])
+    expected_keys = set(
+        ["accessKeyId", "secretAccessKey", "sessionToken", "expiration"]
+    )
     assert set(auth_instance.s3login_credentials.keys()) == expected_keys
 
+
 # Test that earthdata_login generates an auth object
 def test_login_function(auth_instance):
     auth_instance.earthdata_login()
     assert isinstance(auth_instance.auth, earthaccess.auth.Auth)
     assert auth_instance.auth.authenticated
 
+
 # Test that earthdata_login raises a warning if email is provided
 def test_depreciation_warning(auth_instance):
     with pytest.warns(DeprecationWarning):
-        auth_instance.earthdata_login(email='me@gmail.com')
+        auth_instance.earthdata_login(email="me@gmail.com")
diff --git a/icepyx/tests/test_query.py b/icepyx/tests/test_query.py
index 7738c424a..15eebfcbd 100644
--- a/icepyx/tests/test_query.py
+++ b/icepyx/tests/test_query.py
@@ -9,6 +9,7 @@
 # seem to be adequately covered in docstrings;
 # may want to focus on testing specific queries
 
+
 # ------------------------------------
 # 		icepyx-specific tests
 # ------------------------------------
diff --git a/icepyx/tests/test_read.py b/icepyx/tests/test_read.py
index 018435968..d6727607e 100644
--- a/icepyx/tests/test_read.py
+++ b/icepyx/tests/test_read.py
@@ -21,7 +21,6 @@ def test_check_datasource_type():
     ],
 )
 def test_check_datasource(filepath, expect):
-
     source_type = read._check_datasource(filepath)
     assert source_type == expect
 
@@ -90,7 +89,6 @@ def test_validate_source_str_not_a_dir_or_file():
     ],
 )
 def test_check_run_fast_scandir(dir, fn_glob, expect):
-
     (subfolders, files) = read._run_fast_scandir(dir, fn_glob)
     assert (sorted(subfolders), sorted(files)) == expect
 
diff --git a/icepyx/tests/test_spatial.py b/icepyx/tests/test_spatial.py
index 2666d857d..4d6369d9e 100644
--- a/icepyx/tests/test_spatial.py
+++ b/icepyx/tests/test_spatial.py
@@ -351,7 +351,6 @@ def test_poly_list_auto_close():
 
 
 def test_poly_file_simple_one_poly():
-
     poly_from_file = spat.Spatial(
         str(
             Path(
@@ -391,7 +390,6 @@ def test_bad_poly_inputfile_type_throws_error():
 
 
 def test_gdf_from_one_bbox():
-
     obs = spat.geodataframe("bounding_box", [-55, 68, -48, 71])
     geom = [Polygon(list(zip([-55, -55, -48, -48, -55], [68, 71, 71, 68, 68])))]
     exp = gpd.GeoDataFrame(geometry=geom)
diff --git a/icepyx/tests/test_temporal.py b/icepyx/tests/test_temporal.py
index 83926946e..c93b30a38 100644
--- a/icepyx/tests/test_temporal.py
+++ b/icepyx/tests/test_temporal.py
@@ -235,6 +235,7 @@ def test_range_str_yyyydoy_dict_time_start_end():
 
 # Date Range Errors
 
+
 # (The following inputs are bad, testing to ensure the temporal class handles this elegantly)
 def test_bad_start_time_type():
     with pytest.raises(AssertionError):
diff --git a/icepyx/tests/test_visualization.py b/icepyx/tests/test_visualization.py
index 0a1f2fa43..dfd41116f 100644
--- a/icepyx/tests/test_visualization.py
+++ b/icepyx/tests/test_visualization.py
@@ -62,7 +62,6 @@ def test_files_in_latest_cycles(n, exp):
     ],
 )
 def test_gran_paras(filename, expect):
-
     para_list = vis.gran_paras(filename)
 
     assert para_list == expect