diff --git a/duniterpy/documents/block.py b/duniterpy/documents/block.py
index a1ae9b2006d323e3c0a7a8ba99e1e453b7fe62db..2c304758a0bc6a7fc9eff0f734633465aab1bb65 100644
--- a/duniterpy/documents/block.py
+++ b/duniterpy/documents/block.py
@@ -255,55 +255,77 @@ class Block(Document):
     @classmethod
     def from_parsed_json(cls: Type[BlockType], parsed_json_block: dict) -> BlockType:
         """return a block from the python structure produced when parsing json"""
-        b = parsed_json_block # alias for readability
+        b = parsed_json_block  # alias for readability
         version = b["version"]
         currency = b["currency"]
-        arguments = { # arguments used to create block
-            "version":                  b["version"],
-            "currency":                 b["currency"],
-            "number":                   b["number"],
-            "powmin":                   b["powMin"],
-            "time":                     b["time"],
-            "mediantime":               b["medianTime"],
-            "ud":                       b["dividend"],
-            "unit_base":                b["unitbase"],
-            "issuer":                   b["issuer"],
-            "issuers_frame":            b["issuersFrame"],
-            "issuers_frame_var":        b["issuersFrameVar"],
-            "different_issuers_count":  b["issuersCount"],
-            "prev_hash":                b["previousHash"],
-            "prev_issuer":              b["previousIssuer"],
-            "parameters":               b["parameters"],
-            "members_count":            b["membersCount"],
-            "identities":               b["identities"],
-            "joiners":                  b["joiners"],
-            "actives":                  b["actives"],
-            "leavers":                  b["leavers"],
-            "revokations":              b["revoked"],
-            "excluded":                 b["excluded"],
-            "certifications":           b["certifications"],
-            "transactions":             b["transactions"],
-            "inner_hash":               b["inner_hash"],
-            "nonce":                    b["nonce"],
-            "signature":                b["signature"],
+        arguments = {  # arguments used to create block
+            "version": b["version"],
+            "currency": b["currency"],
+            "number": b["number"],
+            "powmin": b["powMin"],
+            "time": b["time"],
+            "mediantime": b["medianTime"],
+            "ud": b["dividend"],
+            "unit_base": b["unitbase"],
+            "issuer": b["issuer"],
+            "issuers_frame": b["issuersFrame"],
+            "issuers_frame_var": b["issuersFrameVar"],
+            "different_issuers_count": b["issuersCount"],
+            "prev_hash": b["previousHash"],
+            "prev_issuer": b["previousIssuer"],
+            "parameters": b["parameters"],
+            "members_count": b["membersCount"],
+            "identities": b["identities"],
+            "joiners": b["joiners"],
+            "actives": b["actives"],
+            "leavers": b["leavers"],
+            "revokations": b["revoked"],
+            "excluded": b["excluded"],
+            "certifications": b["certifications"],
+            "transactions": b["transactions"],
+            "inner_hash": b["inner_hash"],
+            "nonce": b["nonce"],
+            "signature": b["signature"],
         }
         # parameters: Optional[Sequence[str]]
-        if arguments["parameters"]: 
+        if arguments["parameters"]:
             arguments["parameters"] = arguments["parameters"].split(":")
         # identities: List[Identity]
-        arguments["identities"] = [Identity.from_inline(version, currency, i+'\n') for i in arguments["identities"]]
+        arguments["identities"] = [
+            Identity.from_inline(version, currency, i + "\n")
+            for i in arguments["identities"]
+        ]
         # joiners: List[Membership]
-        arguments["joiners"] = [Membership.from_inline(version, currency, "IN", i+'\n') for i in arguments["joiners"]]
+        arguments["joiners"] = [
+            Membership.from_inline(version, currency, "IN", i + "\n")
+            for i in arguments["joiners"]
+        ]
         # actives: List[Membership]
-        arguments["actives"] = [Membership.from_inline(version, currency, "IN", i+'\n') for i in arguments["actives"]]
+        arguments["actives"] = [
+            Membership.from_inline(version, currency, "IN", i + "\n")
+            for i in arguments["actives"]
+        ]
         # leavers: List[Membership]
-        arguments["leavers"] = [Membership.from_inline(version, currency, "OUT", i+'\n') for i in arguments["leavers"]]
+        arguments["leavers"] = [
+            Membership.from_inline(version, currency, "OUT", i + "\n")
+            for i in arguments["leavers"]
+        ]
         # revokations: List[Revocation]
-        arguments["revokations"] = [Revocation.from_inline(version, currency, i+'\n') for i in arguments["revokations"]]
+        arguments["revokations"] = [
+            Revocation.from_inline(version, currency, i + "\n")
+            for i in arguments["revokations"]
+        ]
         # certifications: List[Certification]
-        arguments["certifications"] = [Certification.from_inline(version, currency, arguments["inner_hash"], i+'\n') for i in arguments["certifications"]]
+        arguments["certifications"] = [
+            Certification.from_inline(
+                version, currency, arguments["inner_hash"], i + "\n"
+            )
+            for i in arguments["certifications"]
+        ]
         # transactions: List[Transaction]
-        arguments["transactions"] = [Transaction.from_bma_history(currency, i) for i in arguments["transactions"]]
+        arguments["transactions"] = [
+            Transaction.from_bma_history(currency, i) for i in arguments["transactions"]
+        ]
 
         # now that the arguments are ready, return the block
         return cls(**arguments)
diff --git a/tests/documents/test_block.py b/tests/documents/test_block.py
index 48d7f547c34790faec842db4dd3e8ede1ccd7b90..37446e1f67a37207247d34adfa5473c476f894c6 100644
--- a/tests/documents/test_block.py
+++ b/tests/documents/test_block.py
@@ -1647,12 +1647,6 @@ json_block_250004 = """
 """
 
 
-
-
-
-
-
-
 class TestBlock(unittest.TestCase):
     def test_fromraw(self):
         block = Block.from_signed_raw(raw_block)
@@ -1970,29 +1964,16 @@ AywstQpC0S5iaA/YQvbz2alpP6zTYG3tjkWpxy1jgeCo028Te2V327bBZbfDGDzsjxOrF4UVmEBiGsgb
     def test_from_parsed_json_block_0(self):
         parsed_json_block = json.loads(json_block_0)
         block = Block.from_parsed_json(parsed_json_block)
-        self.assertEqual(
-            block.version,
-            10
-        )
-        self.assertEqual(
-            len(block.identities),
-            59
-        )
+        self.assertEqual(block.version, 10)
+        self.assertEqual(len(block.identities), 59)
 
     def test_from_parsed_json_block_250004(self):
         parsed_json_block = json.loads(json_block_250004)
         block = Block.from_parsed_json(parsed_json_block)
+        self.assertEqual(len(block.transactions), 8)
+        self.assertEqual(block.transactions[5].blockstamp.number, 250002)
         self.assertEqual(
-            len(block.transactions),
-            8
-        )
-        self.assertEqual(
-            block.transactions[5].blockstamp.number,
-            250002
-        )
-        self.assertEqual(
-            block.transactions[5].comment,
-            'Merci pour la farine de chataigne'
+            block.transactions[5].comment, "Merci pour la farine de chataigne"
         )