diff --git a/.flake8 b/.flake8
index da87de0..9e634cc 100644
--- a/.flake8
+++ b/.flake8
@@ -1,4 +1,4 @@
 [flake8]
-ignore = E203,E303,E402,E501,E722,W391,F401,W292,F811
+ignore = E203,E303,E402,E501,E722,W391,F401,W292,F811,E302
 max-line-length = 150
 max-complexity = 22
diff --git a/polyapi/deployables.py b/polyapi/deployables.py
index 55dbbd7..fc0a6f3 100644
--- a/polyapi/deployables.py
+++ b/polyapi/deployables.py
@@ -1,4 +1,6 @@
 import os
+import string
+import random
 import subprocess
 import json
 import hashlib
@@ -76,9 +78,10 @@ class SyncDeployment(TypedDict, total=False):
     id: Optional[str]
     deployed: Optional[str]
 
+
 DeployableTypeEntries: List[Tuple[DeployableTypeNames, DeployableTypes]] = [
-    ("PolyServerFunction", "server-function"), # type: ignore
-    ("PolyClientFunction", "client-function"), # type: ignore
+    ("PolyServerFunction", "server-function"),  # type: ignore
+    ("PolyClientFunction", "client-function"),  # type: ignore
 ]
 
 DeployableTypeToName: Dict[DeployableTypeNames, DeployableTypes] = {name: type for name, type in DeployableTypeEntries}
@@ -175,7 +178,7 @@ def get_git_revision(branch_or_tag: str = "HEAD") -> str:
         return check_output(["git", "rev-parse", "--short", branch_or_tag], text=True).strip()
     except CalledProcessError:
         # Return a random 7-character hash as a fallback
-        return "".join(format(ord(str(c)), 'x') for c in os.urandom(4))[:7]
+        return "".join([random.choice(string.ascii_letters + string.digits) for _ in range(7)])
 
 def get_cache_deployments_revision() -> str:
     """Retrieve the cache deployments revision from a file."""
diff --git a/polyapi/sync.py b/polyapi/sync.py
index 921defa..850538b 100644
--- a/polyapi/sync.py
+++ b/polyapi/sync.py
@@ -24,7 +24,7 @@ def read_file(file_path: str) -> str:
         return file.read()
 
 def group_by(items: List[Dict], key: str) -> Dict[str, List[Dict]]:
-    grouped = {}
+    grouped = {}  # type: ignore
     for item in items:
         grouped.setdefault(item[key], []).append(item)
     return grouped
@@ -32,7 +32,7 @@ def group_by(items: List[Dict], key: str) -> Dict[str, List[Dict]]:
 def remove_deployable_function(deployable: SyncDeployment) -> bool:
     api_key, _ = get_api_key_and_url()
     if not api_key:
-        raise Error("Missing api key!")
+        raise Exception("Missing api key!")
     headers = get_auth_headers(api_key)
     url = f'{deployable["instance"]}/functions/{deployable["type"].replace("-function", "")}/{deployable["id"]}'
     response = requests.get(url, headers=headers)
diff --git a/pyproject.toml b/pyproject.toml
index 02d26d7..e0a5b25 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -3,7 +3,7 @@ requires = ["setuptools>=61.2", "wheel"]
 
 [project]
 name = "polyapi-python"
-version = "0.3.9.dev13"
+version = "0.3.9.dev14"
 description = "The Python Client for PolyAPI, the IPaaS by Developers for Developers"
 authors = [{ name = "Dan Fellin", email = "dan@polyapi.io" }]
 dependencies = [