diff --git a/pyLSV2/client.py b/pyLSV2/client.py
index 064c2ca..d807725 100644
--- a/pyLSV2/client.py
+++ b/pyLSV2/client.py
@@ -70,7 +70,7 @@ def versions(self) -> ld.VersionInfo:
         """version information of the connected control"""
         return self._versions
 
-    @property 
+    @property
     def parameters(self) -> ld.SystemParameters:
         """system parameters of the connected control"""
         return self._sys_par
diff --git a/pyLSV2/const.py b/pyLSV2/const.py
index 6402089..152a538 100644
--- a/pyLSV2/const.py
+++ b/pyLSV2/const.py
@@ -98,6 +98,7 @@ class ControlType(Enum):
     MILLPLUS = 6
     """the MILLPlusIT V600 is officially"""
 
+
 class Login(str, Enum):
     """Enum for the different login roles"""
 
diff --git a/pyLSV2/dat_cls.py b/pyLSV2/dat_cls.py
index 7243121..79179bd 100644
--- a/pyLSV2/dat_cls.py
+++ b/pyLSV2/dat_cls.py
@@ -31,7 +31,6 @@ def __init__(self):
 
         self._ncsw_reg = re.compile(r"(?P<base>\d{5})(?P<type>\d)(?:[ -])(?P<version>\d+)(?: (?P<sp>.*))?")
 
-
     def __str__(self) -> str:
         return "%s / %s" % (self.control, self.nc_sw)
 
diff --git a/pyLSV2/scripts/demo.py b/pyLSV2/scripts/demo.py
index e30e37d..976014f 100644
--- a/pyLSV2/scripts/demo.py
+++ b/pyLSV2/scripts/demo.py
@@ -63,7 +63,7 @@ def comprehensive_demo():
         if con.versions.nc_sw_type == 4:
             print("# Reading time and date on a windows programming station is not supported")
         elif con.versions.nc_sw_base == 538950:
-             print("# Reading time and date on a windows MILLplusIT programming station is not supported")
+            print("# Reading time and date on a windows MILLplusIT programming station is not supported")
         else:
             print("# Time and date: {:}".format(con.get_remote_datetime()))