diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 3b1513f..61130ae 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -56,4 +56,4 @@ repos:
   rev: v0.4.2
   hooks:
   - id: conda_envfile_parse
-    files: environment.yaml
\ No newline at end of file
+    files: environment.yaml
diff --git a/GooseBib/bibtex.py b/GooseBib/bibtex.py
index cfb8a5b..56b1484 100644
--- a/GooseBib/bibtex.py
+++ b/GooseBib/bibtex.py
@@ -82,7 +82,6 @@ def read_display_order(bibtex_str: str, tabsize: int = 2) -> (dict, int):
     matches = list(re.finditer(r"(\@\w*\{)", bibtex_str, re.I))
 
     for m in range(len(matches)):
-
         i = matches[m].start()
 
         if m < len(matches) - 1:
@@ -209,7 +208,6 @@ class MyBibTexParser(bibtexparser.bparser.BibTexParser):
     """
 
     def __init__(self, *args, **kwargs):
-
         kwargs.setdefault("homogenize_fields", True)
         kwargs.setdefault("ignore_nonstandard_types", True)
         kwargs.setdefault("add_missing_from_crossref", True)
@@ -218,7 +216,6 @@ def __init__(self, *args, **kwargs):
         super().__init__(self, *args, **kwargs)
 
     def parse(self, bibtex_str, *args, **kwargs):
-
         order, indent = read_display_order(bibtex_str, kwargs.pop("tabsize", 2))
         data = bibtexparser.bparser.BibTexParser.parse(self, bibtex_str, *args, **kwargs)
 
@@ -232,7 +229,6 @@ def parse(self, bibtex_str, *args, **kwargs):
         return data
 
     def __add__(self, other):
-
         self.entries += other.entries
         self.comments += other.comments
         self.strings.update(other.strings)
@@ -348,7 +344,6 @@ def select(
         fields = ret
 
     for entry in data:
-
         select = fields[entry["ENTRYTYPE"]]
 
         if ensure_link:
@@ -437,7 +432,6 @@ def _(data, *args, **kwargs) -> Tuple[str, dict]:
 
 
 def _merge(data: list[dict], iforward: ArrayLike, ibackward: ArrayLike, merge: bool) -> list[dict]:
-
     if iforward.size == len(data):
         return data, {}
 
@@ -609,7 +603,6 @@ def clever_merge(data: list[dict], merge: bool = True) -> list[dict]:
 
 @clever_merge.register(bibtexparser.bibdatabase.BibDatabase)
 def _(data: str, *args, **kwargs) -> bibtexparser.bibdatabase.BibDatabase:
-
     d, merge = clever_merge(data.entries, *args, **kwargs)
     data.entries = d
     return data, merge
@@ -656,7 +649,6 @@ def manual_merge(data: list[dict], keys: list[Tuple[str, str]]) -> Tuple[list[di
 
 @manual_merge.register(bibtexparser.bibdatabase.BibDatabase)
 def _(data: str, *args, **kwargs) -> Tuple[bibtexparser.bibdatabase.BibDatabase, dict]:
-
     d, merge = manual_merge(data.entries, *args, **kwargs)
     data.entries = d
     return data, merge
@@ -710,7 +702,6 @@ def clean(
     ignored_authors = []
 
     for entry in data:
-
         # find identifiers
         iden = get_identifiers(entry)
         for key in iden:
@@ -904,7 +895,6 @@ def format_journal_arxiv(
     pattern = ["arxiv", "preprint", "submitted", "in preparation"]
 
     for entry in data:
-
         if "doi" in entry:
             if not re.match(search, entry["doi"]):
                 continue
@@ -928,7 +918,6 @@ def format_journal_arxiv(
                     break
 
     if len(journal_database) > 0:
-
         revus = []
         for entry in data:
             if "journal" in entry:
@@ -1206,7 +1195,6 @@ def GbibClean():
     # read input/output filepaths
 
     if args.in_place:
-
         assert args.output is None
         assert not args.diff
         assert not args.force
@@ -1216,7 +1204,6 @@ def GbibClean():
         assert all([os.path.isfile(i) for i in sourcepaths])
 
     else:
-
         if args.output is None:
             raise OSError("Specify --output STR")
         if os.path.isdir(args.output):
@@ -1228,7 +1215,6 @@ def GbibClean():
         outpaths = [args.output]
 
         if len(args.files) == 1:
-
             filepath = args.files[0]
             if not os.path.isfile(filepath):
                 raise OSError(f'"{filepath}" does not exist')
@@ -1238,7 +1224,6 @@ def GbibClean():
                 parsed = MyBibTexParser().parse(text)
                 data = parsed.entries
         else:
-
             for filepath in args.files:
                 if not os.path.isfile(filepath):
                     raise OSError(f'"{filepath}" does not exist')
@@ -1252,7 +1237,6 @@ def GbibClean():
                     is_unique = True
 
         if not args.force:
-
             overwrite = []
 
             for outpath in outpaths:
@@ -1275,7 +1259,6 @@ def GbibClean():
     # formatting
 
     for sourcepath, outpath in zip(sourcepaths, outpaths):
-
         if sourcepath is not None:
             with open(sourcepath) as file:
                 raw = file.read()
@@ -1318,20 +1301,17 @@ def GbibClean():
         # hand merge duplicates
 
         if args.merge:
-
             data, merged = manual_merge(data, args.merge)
 
         # clever merge duplicates
 
         if args.unique:
-
             data, m = clever_merge(data)
             merged = {**merged, **m}
 
         # rename keys
 
         if args.rename:
-
             keys = [entry["ID"] for entry in data]
 
             for oldkey, newkey in args.rename:
@@ -1347,7 +1327,6 @@ def GbibClean():
         # write changed keys
 
         if args.unique:
-
             newnames = {k: v for k, v in renamed.items()}
 
             for key in merged:
@@ -1380,7 +1359,6 @@ def GbibClean():
             yaml_dump(args.unique, merged, force=True)
 
         elif len(renamed) > 0:
-
             merged = ", ".join([f'"{i}" -> "{renamed[i]}"' for i in renamed])
             warnings.warn(f"Renaming conflicts, please check:\n{merged}", Warning)
 
@@ -1399,7 +1377,6 @@ def GbibClean():
             file.write(data)
 
         if args.diff is not None:
-
             if args.diff_type.lower() == "raw":
                 simple = raw
             elif args.diff_type.lower() == "plain":
@@ -1550,7 +1527,6 @@ def dbsearch_arxiv(
 
 @dbsearch_arxiv.register(bibtexparser.bibdatabase.BibDatabase)
 def _(data: str, *args, **kwargs) -> bibtexparser.bibdatabase.BibDatabase:
-
     return dbsearch_arxiv(data.entries, *args, **kwargs)
 
 
diff --git a/GooseBib/cli/GbibCheckAuthors.py b/GooseBib/cli/GbibCheckAuthors.py
index e01b3dc..87703ac 100644
--- a/GooseBib/cli/GbibCheckAuthors.py
+++ b/GooseBib/cli/GbibCheckAuthors.py
@@ -29,7 +29,6 @@
 
 
 def reformatAuthor(text, sep=" "):
-
     # skip authors that cannot be split in first and last name
     if len(text.split(",")) <= 1:
         return text
@@ -63,7 +62,6 @@ def reformatAuthor(text, sep=" "):
 
 
 def replaceUnicode(text):
-
     # NB list not exhaustive, please extend!
     match = [
         ("ç", r"\c{c}"),
@@ -97,7 +95,6 @@ def replaceUnicode(text):
 
 
 def main():
-
     # --------------------------------- parse command line arguments -------------------------------
 
     # parse command-line options/arguments
@@ -132,7 +129,6 @@ def main():
     names = {}
 
     for entry in bib.entries:
-
         # set author separation
         sep = ""
 
diff --git a/GooseBib/cli/GbibCheckKeys.py b/GooseBib/cli/GbibCheckKeys.py
index 6ad9c5c..dd7dfb2 100644
--- a/GooseBib/cli/GbibCheckKeys.py
+++ b/GooseBib/cli/GbibCheckKeys.py
@@ -28,7 +28,6 @@
 
 
 def replaceUnicode(text):
-
     match = [
         ("ç", "c"),
         ("è", "e"),
@@ -79,7 +78,6 @@ def replaceUnicode(text):
 
 
 def getPlainLastName(full_name):
-
     last = full_name.split(",")[0]
 
     last = replaceUnicode(last)
@@ -94,7 +92,6 @@ def getPlainLastName(full_name):
 
 
 def main():
-
     # parse command-line options/arguments
     # change keys to simplify implementation:
     # - remove leading "-" and "--" from options
@@ -120,7 +117,6 @@ def main():
     keys = []
 
     for entry in bib.entries:
-
         old_key = entry["ID"]
         new_key = entry["ID"]
         generated = False
@@ -183,7 +179,6 @@ def main():
         ntimes[new_key] += 1
 
     for idx, (old_key, new_key, generated) in enumerate(keys):
-
         if not generated:
             continue
 
diff --git a/GooseBib/cli/GbibCheckLink.py b/GooseBib/cli/GbibCheckLink.py
index 1f643f2..01326f8 100644
--- a/GooseBib/cli/GbibCheckLink.py
+++ b/GooseBib/cli/GbibCheckLink.py
@@ -27,7 +27,6 @@
 
 
 def Error(msg, exit_code=1):
-
     print(msg)
 
     sys.exit(exit_code)
@@ -37,7 +36,6 @@ def Error(msg, exit_code=1):
 
 
 def urlExists(url):
-
     request = requests.get(url)
 
     if request.status_code == 200:
@@ -50,7 +48,6 @@ def urlExists(url):
 
 
 def main():
-
     # --------------------------------- parse command line arguments -------------------------------
 
     # parse command-line options/arguments
diff --git a/GooseBib/cli/GbibList.py b/GooseBib/cli/GbibList.py
index 427cc81..0fcf773 100644
--- a/GooseBib/cli/GbibList.py
+++ b/GooseBib/cli/GbibList.py
@@ -27,7 +27,6 @@
 
 
 def main():
-
     # --------------------------------- parse command line arguments -------------------------------
 
     # parse command-line options/arguments
@@ -59,7 +58,6 @@ def main():
     # -------------
 
     if args["journal"]:
-
         out = []
 
         for entry in bib.entries:
diff --git a/GooseBib/cli/GbibParse.py b/GooseBib/cli/GbibParse.py
index e45d0e1..b556320 100644
--- a/GooseBib/cli/GbibParse.py
+++ b/GooseBib/cli/GbibParse.py
@@ -29,7 +29,6 @@
 
 
 def Error(msg, exit_code=1):
-
     print(msg)
 
     sys.exit(exit_code)
@@ -39,7 +38,6 @@ def Error(msg, exit_code=1):
 
 
 def main():
-
     # --------------------------------- parse command line arguments -------------------------------
 
     # parse command-line options/arguments
diff --git a/GooseBib/cli/GbibSelect.py b/GooseBib/cli/GbibSelect.py
index c987bf5..6bcbaab 100644
--- a/GooseBib/cli/GbibSelect.py
+++ b/GooseBib/cli/GbibSelect.py
@@ -26,7 +26,6 @@
 
 
 def Error(msg, exit_code=1):
-
     print(msg)
 
     sys.exit(exit_code)
@@ -36,7 +35,6 @@ def Error(msg, exit_code=1):
 
 
 def tex2cite(tex):
-
     # extract keys from "cite"
     def extract(s):
         try:
@@ -58,7 +56,6 @@ def extract(s):
 
 
 def main():
-
     # --------------------------------- parse command line arguments -------------------------------
 
     # parse command-line options/arguments
diff --git a/GooseBib/cli/GbibSelectAlias.py b/GooseBib/cli/GbibSelectAlias.py
index 8b6c4fa..7d06360 100644
--- a/GooseBib/cli/GbibSelectAlias.py
+++ b/GooseBib/cli/GbibSelectAlias.py
@@ -35,7 +35,6 @@
 
 
 def Error(msg, exit_code=1):
-
     print(msg)
 
     sys.exit(exit_code)
diff --git a/GooseBib/journals.py b/GooseBib/journals.py
index 614e524..f04fcad 100644
--- a/GooseBib/journals.py
+++ b/GooseBib/journals.py
@@ -69,7 +69,6 @@ def __init__(
         index: list[int] = None,
         abbreviation_is_acronym: bool = False,
     ):
-
         if index:
             assert name is None
             assert abbreviation is None
@@ -229,7 +228,6 @@ class JournalList:
     """
 
     def __init__(self, data: dict[Journal] | list[Journal] = None):
-
         self.count = 0
 
         if data is None:
@@ -392,7 +390,6 @@ def tolist(self) -> list[dict]:
         ret = []
 
         for i in range(np.max(self.index) + 1):
-
             i = self.index == i
             e = Journal(
                 variations=self.names[i],
@@ -687,7 +684,6 @@ def generate_default(domain: str) -> dict[Journal]:
     domain = domain.lower()
 
     if domain == "physics":
-
         # basic list from JabRef
 
         db = download_from_jabref("geology_physics", "geology_physics_variations")
@@ -1088,7 +1084,6 @@ def generate_default(domain: str) -> dict[Journal]:
         )
 
     elif domain == "mechanics":
-
         db = download_from_jabref("mechanical")
 
         _database_merge(
@@ -1228,7 +1223,6 @@ def generate_default(domain: str) -> dict[Journal]:
         )
 
     elif domain == "pnas":
-
         db = generate_default("physics")
         name = "Proceedings of the National Academy of Sciences"
         alias = "Proceedings of the National Academy of Sciences of the United States of America"
@@ -1244,7 +1238,6 @@ def generate_default(domain: str) -> dict[Journal]:
         db[name].unique()
 
     elif domain == "pnas-usa":
-
         db = generate_default("physics")
         name = "Proceedings of the National Academy of Sciences of the United States of America"
         alias = "Proceedings of the National Academy of Sciences"
@@ -1260,7 +1253,6 @@ def generate_default(domain: str) -> dict[Journal]:
         db[name].unique()
 
     elif domain == "arxiv":
-
         db = dict(arXiv=Journal(name="arXiv preprint", abbreviation="arXiv"))
 
         r = generate_default("physics")
@@ -1361,7 +1353,6 @@ def load(*args: str) -> JournalList:
     db = []
 
     for arg in args:
-
         found = False
         name = arg.lower()
 
@@ -1383,5 +1374,4 @@ def load(*args: str) -> JournalList:
 
 
 if __name__ == "__main__":
-
     update_default()
diff --git a/GooseBib/recognise.py b/GooseBib/recognise.py
index 3a8ddae..cecb2e2 100644
--- a/GooseBib/recognise.py
+++ b/GooseBib/recognise.py
@@ -14,7 +14,6 @@ def doi() -> str:
 
 @doi.register(str)
 def _(*args) -> str:
-
     match = [
         (
             re.compile(r"(.*)(http)(s?)(://)([^\s]*)(doi.org/)([^\s]*)(.*)", re.IGNORECASE),
@@ -53,7 +52,6 @@ def _(*args) -> str:
 
 @doi.register(dict)
 def _(entry) -> str:
-
     for key in ["doi"]:
         if key in entry:
             return doi(entry[key])
@@ -73,7 +71,6 @@ def arxivid() -> str:
 
 @arxivid.register(str)
 def _(*args) -> str:
-
     match = [
         (
             re.compile(
@@ -113,7 +110,6 @@ def _(*args) -> str:
 
 @arxivid.register(dict)
 def _(entry) -> str:
-
     for key in ["arxivid", "eprint"]:
         if key in entry:
             return arxivid(entry[key])
diff --git a/tests/test_GbibClean.py b/tests/test_GbibClean.py
index 7b8e0fe..bfa10e0 100644
--- a/tests/test_GbibClean.py
+++ b/tests/test_GbibClean.py
@@ -16,7 +16,6 @@ class Test_GooseBib(unittest.TestCase):
     """
 
     def test_inplace(self):
-
         source = os.path.join(dirname, "library_mendeley.bib")
         output = os.path.join(dirname, "output.bib")
         shutil.copy2(source, output)
@@ -30,7 +29,6 @@ def test_inplace(self):
             data = yaml.load(file.read(), Loader=yaml.FullLoader)
 
         for entry in bib.entries:
-
             d = data[entry["ID"]]
 
             for key in d:
@@ -42,7 +40,6 @@ def test_inplace(self):
         os.remove(output)
 
     def test_mendeley(self):
-
         source = os.path.join(dirname, "library_mendeley.bib")
         output = os.path.join(dirname, "output.bib")
         data = os.path.join(dirname, "library.yaml")
@@ -55,7 +52,6 @@ def test_mendeley(self):
             data = yaml.load(file.read(), Loader=yaml.FullLoader)
 
         for entry in bib.entries:
-
             d = data[entry["ID"]]
 
             for key in d:
@@ -67,7 +63,6 @@ def test_mendeley(self):
         os.remove(output)
 
     def test_hidden_doi_arxiv(self):
-
         source = os.path.join(dirname, "library_hidden_doi_arxiv.bib")
         output = os.path.join(dirname, "output.bib")
         data = os.path.join(dirname, "library.yaml")
@@ -80,7 +75,6 @@ def test_hidden_doi_arxiv(self):
             data = yaml.load(file.read(), Loader=yaml.FullLoader)
 
         for entry in bib.entries:
-
             d = data[entry["ID"]]
 
             for key in d:
@@ -92,7 +86,6 @@ def test_hidden_doi_arxiv(self):
         os.remove(output)
 
     def test_missing_doi_arxiv(self):
-
         source = os.path.join(dirname, "library_missing_doi_arxiv.bib")
         output = os.path.join(dirname, "output.yaml")
         data = os.path.join(dirname, "library.yaml")
@@ -122,7 +115,6 @@ def test_missing_doi_arxiv(self):
         os.remove(output)
 
     def test_arxiv_preprint(self):
-
         source = os.path.join(dirname, "library_arxiv_preprint.bib")
         output = os.path.join(dirname, "output.bib")
         data = os.path.join(dirname, "library_arxiv_preprint.yaml")
@@ -137,7 +129,6 @@ def test_arxiv_preprint(self):
             data = yaml.load(file.read(), Loader=yaml.FullLoader)
 
         for entry in bib.entries:
-
             d = data[entry["ID"]]
 
             for key in d:
@@ -149,7 +140,6 @@ def test_arxiv_preprint(self):
         os.remove(output)
 
     def test_authorsep(self):
-
         source = os.path.join(dirname, "library_mendeley.bib")
         output = os.path.join(dirname, "output.bib")
         data = os.path.join(dirname, "library.yaml")
@@ -168,7 +158,6 @@ def test_authorsep(self):
             data[key]["author"] = data[key]["author"].replace("C.B.", "C. B.")
 
         for entry in bib.entries:
-
             d = data[entry["ID"]]
 
             for key in d:
@@ -180,7 +169,6 @@ def test_authorsep(self):
         os.remove(output)
 
     def test_no_title(self):
-
         source = os.path.join(dirname, "library_mendeley.bib")
         output = os.path.join(dirname, "output.bib")
         subprocess.check_output(["GbibClean", "-f", "--no-title", "-o", output, source])
@@ -194,7 +182,6 @@ def test_no_title(self):
         os.remove(output)
 
     def test_journalrename(self):
-
         lookup = dict(
             official={
                 "IJSS": "International Journal of Solids and Structures",
@@ -214,7 +201,6 @@ def test_journalrename(self):
         )
 
         for key in lookup:
-
             source = os.path.join(dirname, "library_mendeley.bib")
             output = os.path.join(dirname, "output.bib")
             data = os.path.join(dirname, "library.yaml")
@@ -232,7 +218,6 @@ def test_journalrename(self):
             data["DeGeus2013"]["journal"] = lookup[key]["MRS"]
 
             for entry in bib.entries:
-
                 d = data[entry["ID"]]
 
                 for key in d:
@@ -245,5 +230,4 @@ def test_journalrename(self):
 
 
 if __name__ == "__main__":
-
     unittest.main()
diff --git a/tests/test_bibtex.py b/tests/test_bibtex.py
index 32e159a..72b1401 100644
--- a/tests/test_bibtex.py
+++ b/tests/test_bibtex.py
@@ -9,7 +9,6 @@ class Test_bibtex(unittest.TestCase):
     """
 
     def test_clever_merge(self):
-
         text = """
         @article{DeGeus2021,
             author = {De Geus, T.W.J},
@@ -79,5 +78,4 @@ def test_clever_merge(self):
 
 
 if __name__ == "__main__":
-
     unittest.main()
diff --git a/tests/test_journals.py b/tests/test_journals.py
index 7273aa2..423b7d5 100644
--- a/tests/test_journals.py
+++ b/tests/test_journals.py
@@ -11,7 +11,6 @@ class Test_journals(unittest.TestCase):
     """
 
     def test_Journal(self):
-
         name = "name"
         abbreviation = "abbr"
         acronym = "acro"
@@ -94,7 +93,6 @@ def test_Journal(self):
         self.assertEqual(assume, dict(entry))
 
     def test_JournalList(self):
-
         lst = bib.journals.JournalList()
         lst.names = np.array(["a", "b", "c", "a", "d"])
         lst.index = np.array([0, 0, 3, 2, 2])
@@ -123,7 +121,6 @@ def test_JournalList(self):
         self.assertEqual(assume, [dict(i) for i in lst.tolist()])
 
     def test_JournalList_no_force_first(self):
-
         lst = bib.journals.JournalList()
         lst.names = np.array(["a", "b", "c", "a", "d"])
         lst.index = np.array([0, 0, 3, 2, 2])
@@ -152,7 +149,6 @@ def test_JournalList_no_force_first(self):
         self.assertEqual(assume, [dict(i) for i in lst.tolist()])
 
     def test_JournalList_map(self):
-
         lst = bib.journals.JournalList()
         lst.names = np.array(["a", "b", "c", "a", "d"])
         lst.index = np.array([0, 0, 3, 2, 2])
@@ -167,7 +163,6 @@ def test_JournalList_map(self):
         self.assertEqual(lst.map2acronym(["b", "foo", "d"]), ["a", "foo", "a"])
 
     def test_JournalList_map_no_force_first(self):
-
         lst = bib.journals.JournalList()
         lst.names = np.array(["a", "b", "c", "a", "d"])
         lst.index = np.array([0, 0, 3, 2, 2])
@@ -182,7 +177,6 @@ def test_JournalList_map_no_force_first(self):
         self.assertEqual(lst.map2acronym(["b", "foo", "d"]), ["d", "foo", "d"])
 
     def test_load(self):
-
         variations = [
             "Proc. Nat. Acad. Sci.",
             "Proc. Nat. Acad. Sci. U. S. A",
@@ -212,5 +206,4 @@ def test_load(self):
 
 
 if __name__ == "__main__":
-
     unittest.main()
diff --git a/tests/test_recognise.py b/tests/test_recognise.py
index e710b9a..2fcb4c3 100644
--- a/tests/test_recognise.py
+++ b/tests/test_recognise.py
@@ -9,7 +9,6 @@ class Test_recognise(unittest.TestCase):
     """
 
     def test_doi(self):
-
         doi = "10.1073/pnas.1906551116"
         self.assertEqual(doi, bib.recognise.doi(f"https://doi.org/{doi}"))
         self.assertEqual(doi, bib.recognise.doi(f"https://dx.doi.org/{doi}"))
@@ -24,7 +23,6 @@ def test_doi(self):
         self.assertEqual(doi, bib.recognise.doi(f"doi:{doi}"))
 
     def test_arxiv(self):
-
         arxivid = "1904.07635"
         self.assertEqual(arxivid, bib.recognise.arxivid(f"https://arxiv.org/abs/{arxivid}"))
         self.assertEqual(arxivid, bib.recognise.arxivid(*[f"https://arxiv.org/abs/{arxivid}"]))
@@ -44,5 +42,4 @@ def test_arxiv(self):
 
 
 if __name__ == "__main__":
-
     unittest.main()
diff --git a/tests/test_reformat.py b/tests/test_reformat.py
index 6c6e41a..d248471 100644
--- a/tests/test_reformat.py
+++ b/tests/test_reformat.py
@@ -9,7 +9,6 @@ class Test_reformat(unittest.TestCase):
     """
 
     def test_abbreviate_firstname(self):
-
         self.assertEqual(
             bib.reformat.abbreviate_firstname("de Geus, Thomas Willem Jan"),
             "de Geus, T. W. J.",
@@ -83,31 +82,25 @@ def test_abbreviate_firstname(self):
         )
 
     def test_protect_math(self):
-
         simple = r"$\tau$"
         self.assertEqual(bib.reformat.protect_math(simple), simple)
 
     def test_rm_unicode(self):
-
         simple = r"$de Geus, Tom$"
         self.assertEqual(bib.reformat.rm_unicode(simple), simple)
 
     def test_rm_accents(self):
-
         self.assertEqual(bib.reformat.rm_accents("école"), "ecole")
         self.assertEqual(bib.reformat.rm_accents("École"), "Ecole")
 
     def test_name2key(self):
-
         self.assertEqual(bib.reformat.name2key("de Geus, Tom"), "DeGeus")
 
     def test_page_range(self):
-
         self.assertEqual(bib.reformat.number_range("1-6"), "1--6")
         self.assertEqual(bib.reformat.number_range("47–58"), "47--58")
         self.assertEqual(bib.reformat.number_range("100"), "100")
 
 
 if __name__ == "__main__":
-
     unittest.main()
diff --git a/tests/test_tex.py b/tests/test_tex.py
index e248701..497ddd4 100644
--- a/tests/test_tex.py
+++ b/tests/test_tex.py
@@ -9,12 +9,10 @@ class Test_tex(unittest.TestCase):
     """
 
     def test_list_cise(self):
-
         key = "DeGeus2021"
         mytext = r"The authors of \cite{DeGeus2021} claim that ..."
         self.assertEqual(bib.tex.list_cite(mytext), [key])
 
 
 if __name__ == "__main__":
-
     unittest.main()