diff --git a/skale/contracts/dkg.py b/skale/contracts/dkg.py
index 3ebbcc7f..a18427a1 100644
--- a/skale/contracts/dkg.py
+++ b/skale/contracts/dkg.py
@@ -27,10 +27,10 @@ def gas_price(self):
 
     @transaction_method(GAS['dkg_broadcast'])
     def broadcast(self, group_index, node_index,
-                  verification_vector, secret_key_conribution):
+                  verification_vector, secret_key_contribution):
         return self.contract.functions.broadcast(group_index, node_index,
                                                  verification_vector,
-                                                 secret_key_conribution)
+                                                 secret_key_contribution)
 
     @transaction_method(GAS['dkg_response'])
     def response(self, group_index, from_node_index,
diff --git a/skale/utils/account_tools.py b/skale/utils/account_tools.py
index 4b45c719..d45d63b2 100644
--- a/skale/utils/account_tools.py
+++ b/skale/utils/account_tools.py
@@ -100,7 +100,7 @@ def generate_accounts(skale,
     n_wallets = int(n_wallets)
     results = []
 
-    for i in range(0, n_wallets):
+    for _ in range(0, n_wallets):
         wallet = generate_account(skale.web3)
 
         send_tokens(skale, skale.wallet, wallet['address'], skale_amount)
diff --git a/skale/utils/exceptions.py b/skale/utils/exceptions.py
index 5a7ba119..199352c4 100644
--- a/skale/utils/exceptions.py
+++ b/skale/utils/exceptions.py
@@ -19,7 +19,7 @@
 
 
 class RPCWalletError(Exception):
-    """Raised when remote wallet retured an error"""
+    """Raised when remote wallet returned an error"""
 
 
 class InvalidWalletError(Exception):
diff --git a/tests/contracts/dkg_test.py b/tests/contracts/dkg_test.py
index d3c26acc..c5569934 100644
--- a/tests/contracts/dkg_test.py
+++ b/tests/contracts/dkg_test.py
@@ -18,13 +18,13 @@ def test_broadcast(skale):
     group_index = b'e629fa6598d732768f7c726b4b621285'
     node_index = 0
     validation_vector = b'validation-vector'
-    secret_key_conribution = b'secret-key-contrib'
+    secret_key_contribution = b'secret-key-contrib'
 
     exp = skale.web3.eth.account.signTransaction(
         expected_txn, skale.wallet._private_key).rawTransaction
     with mock.patch.object(web3.eth.Eth, 'sendRawTransaction') as send_tx_mock:
         send_tx_mock.return_value = b'hexstring'
-        skale.dkg.broadcast(group_index, node_index, validation_vector, secret_key_conribution,
+        skale.dkg.broadcast(group_index, node_index, validation_vector, secret_key_contribution,
                             gas_price=skale.dkg.gas_price())
         send_tx_mock.assert_called_with(HexBytes(exp))
 
diff --git a/tests/multithreading_test.py b/tests/multithreading_test.py
index 26ead3ae..cb32bd96 100644
--- a/tests/multithreading_test.py
+++ b/tests/multithreading_test.py
@@ -13,7 +13,7 @@ def get_node_data():
         skale.nodes_data.get_by_name(DEFAULT_NODE_NAME)
 
 
-def test_multithead_calls():
+def test_multithread_calls():
     init_web3(ENDPOINT)
     monitors = []
     for _ in range(0, 5):
diff --git a/tests/schain_config/generator_test.py b/tests/schain_config/generator_test.py
index 3da73729..7decc570 100644
--- a/tests/schain_config/generator_test.py
+++ b/tests/schain_config/generator_test.py
@@ -12,7 +12,7 @@
 TEST_NODE_IP = '10.10.10.10'
 NODE_INFO_LEN = 15
 SCHAIN_INFO_LEN = 4
-TEST_ACCOUNTS_LEN = 2  # because we're creating eveything from one account
+TEST_ACCOUNTS_LEN = 2  # because we're creating everything from one account
 
 
 TEST_BASE_CONFIG = {