diff --git a/cupid/build.py b/cupid/build.py
index 68fdb67..5a09bdd 100755
--- a/cupid/build.py
+++ b/cupid/build.py
@@ -41,7 +41,7 @@ def build(config_path):
 
     subprocess.run(["jupyter-book", "clean", f"{run_dir}/computed_notebooks/{sname}"])
     subprocess.run(
-        ["jupyter-book", "build", f"{run_dir}/computed_notebooks/{sname}", "--all"]
+        ["jupyter-book", "build", f"{run_dir}/computed_notebooks/{sname}", "--all"],
     )
 
     # Originally used this code to copy jupyter book HTML to a location to host it online
diff --git a/cupid/run.py b/cupid/run.py
index fbdb353..3dd3d9c 100755
--- a/cupid/run.py
+++ b/cupid/run.py
@@ -136,7 +136,7 @@ def run(
     output_dir = run_dir + "/computed_notebooks/" + control["data_sources"]["sname"]
     temp_data_path = run_dir + "/temp_data"
     nb_path_root = os.path.realpath(
-        os.path.expanduser(control["data_sources"]["nb_path_root"])
+        os.path.expanduser(control["data_sources"]["nb_path_root"]),
     )
 
     #####################################################################
@@ -148,7 +148,7 @@ def run(
 
     if "path_to_cat_json" in control["data_sources"]:
         full_cat_path = os.path.realpath(
-            os.path.expanduser(control["data_sources"]["path_to_cat_json"])
+            os.path.expanduser(control["data_sources"]["path_to_cat_json"]),
         )
         full_cat = intake.open_esm_datastore(full_cat_path)
 
@@ -160,7 +160,7 @@ def run(
             # This pulls out the name of the catalog from the path
             cat_subset_name = full_cat_path.split("/")[-1].split(".")[0] + "_subset"
             cat_subset.serialize(
-                directory=temp_data_path, name=cat_subset_name, catalog_type="file"
+                directory=temp_data_path, name=cat_subset_name, catalog_type="file",
             )
             cat_path = temp_data_path + "/" + cat_subset_name + ".json"
         else:
@@ -192,7 +192,7 @@ def run(
                     all_nbs[nb]["output_dir"] = output_dir + "/" + comp_name
             elif comp_bool and not all:
                 warnings.warn(
-                    f"No notebooks for {comp_name} component specified in config file."
+                    f"No notebooks for {comp_name} component specified in config file.",
                 )
 
         # Checking for existence of environments
@@ -203,7 +203,7 @@ def run(
                 warnings.warn(
                     f"Environment {bad_env} specified for {nb}.ipynb could not be found;"+
                     f" {nb}.ipynb will not be run."+
-                    f"See README.md for environment installation instructions."
+                    f"See README.md for environment installation instructions.",
                 )
                 all_nbs.pop(nb)
 
@@ -235,7 +235,7 @@ def run(
                     all_scripts[script]["nb_path_root"] = nb_path_root + "/" + comp_name
             elif comp_bool and not all:
                 warnings.warn(
-                    f"No scripts for {comp_name} component specified in config file."
+                    f"No scripts for {comp_name} component specified in config file.",
                 )
 
         # Checking for existence of environments
@@ -245,7 +245,7 @@ def run(
                 bad_env = info["kernel_name"]
                 warnings.warn(
                     f"Environment {bad_env} specified for {script}.py could not be found;"+
-                    f"{script}.py will not be run."
+                    f"{script}.py will not be run.",
                 )
                 all_scripts.pop(script)
 
diff --git a/cupid/util.py b/cupid/util.py
index 22a1e88..e740506 100644
--- a/cupid/util.py
+++ b/cupid/util.py
@@ -63,7 +63,7 @@ def get_control_dict(config_path):
                 if info["kernel_name"] is None:
                     info["kernel_name"] = "cupid-analysis"
                     warnings.warn(
-                        f"No conda environment specified for {nb}.ipynb and no default kernel set, will use cupid-analysis environment."
+                        f"No conda environment specified for {nb}.ipynb and no default kernel set, will use cupid-analysis environment.",
                     )
                 if info["kernel_name"] not in control["env_check"]:
                     control["env_check"][info["kernel_name"]] = (
@@ -78,7 +78,7 @@ def get_control_dict(config_path):
                 if info["kernel_name"] is None:
                     info["kernel_name"] = "cupid-analysis"
                     warnings.warn(
-                        f"No environment specified for {script}.py and no default kernel set, will use cupid-analysis environment."
+                        f"No environment specified for {script}.py and no default kernel set, will use cupid-analysis environment.",
                     )
                 if info["kernel_name"] not in control["env_check"]:
                     control["env_check"][info["kernel_name"]] = (
diff --git a/examples/nblibrary/ice/plot_diff.py b/examples/nblibrary/ice/plot_diff.py
index d12c40a..44e0128 100644
--- a/examples/nblibrary/ice/plot_diff.py
+++ b/examples/nblibrary/ice/plot_diff.py
@@ -38,7 +38,7 @@ def plot_diff(field1, field2, levels, case1, case2, title, proj, TLAT, TLON):
     field_std = field_diff.std()
 
     this = ax.pcolormesh(
-        TLON, TLAT, field1, norm=norm, cmap="tab20", transform=ccrs.PlateCarree()
+        TLON, TLAT, field1, norm=norm, cmap="tab20", transform=ccrs.PlateCarree(),
     )
     plt.colorbar(this, orientation="vertical", fraction=0.04, pad=0.01)
     plt.title(case1, fontsize=10)
@@ -56,7 +56,7 @@ def plot_diff(field1, field2, levels, case1, case2, title, proj, TLAT, TLON):
     ax.add_feature(cfeature.LAND, zorder=100, edgecolor="k")
 
     this = ax.pcolormesh(
-        TLON, TLAT, field2, norm=norm, cmap="tab20", transform=ccrs.PlateCarree()
+        TLON, TLAT, field2, norm=norm, cmap="tab20", transform=ccrs.PlateCarree(),
     )
     plt.colorbar(this, orientation="vertical", fraction=0.04, pad=0.01)
     plt.title(case2, fontsize=10)