diff --git a/examples/bank_reserves/bank_reserves/model.py b/examples/bank_reserves/bank_reserves/model.py
index 92be1c419b1..ec24db49979 100644
--- a/examples/bank_reserves/bank_reserves/model.py
+++ b/examples/bank_reserves/bank_reserves/model.py
@@ -26,7 +26,7 @@
 
 
 def get_num_rich_agents(model):
-    """ return number of rich agents"""
+    """return number of rich agents"""
 
     rich_agents = [a for a in model.schedule.agents if a.savings > model.rich_threshold]
     return len(rich_agents)
diff --git a/examples/boltzmann_wealth_model/boltzmann_wealth_model/model.py b/examples/boltzmann_wealth_model/boltzmann_wealth_model/model.py
index f8eeec1ef6b..d7ad78324ea 100644
--- a/examples/boltzmann_wealth_model/boltzmann_wealth_model/model.py
+++ b/examples/boltzmann_wealth_model/boltzmann_wealth_model/model.py
@@ -50,7 +50,7 @@ def run_model(self, n):
 
 
 class MoneyAgent(Agent):
-    """ An agent with fixed initial wealth."""
+    """An agent with fixed initial wealth."""
 
     def __init__(self, unique_id, model):
         super().__init__(unique_id, model)
diff --git a/examples/boltzmann_wealth_model_network/boltzmann_wealth_model_network/model.py b/examples/boltzmann_wealth_model_network/boltzmann_wealth_model_network/model.py
index 7737ad5034f..0d996ca4dbd 100644
--- a/examples/boltzmann_wealth_model_network/boltzmann_wealth_model_network/model.py
+++ b/examples/boltzmann_wealth_model_network/boltzmann_wealth_model_network/model.py
@@ -52,7 +52,7 @@ def run_model(self, n):
 
 
 class MoneyAgent(Agent):
-    """ An agent with fixed initial wealth."""
+    """An agent with fixed initial wealth."""
 
     def __init__(self, unique_id, model):
         super().__init__(unique_id, model)
diff --git a/examples/charts/charts/model.py b/examples/charts/charts/model.py
index e325af499a1..394e18205eb 100644
--- a/examples/charts/charts/model.py
+++ b/examples/charts/charts/model.py
@@ -26,7 +26,7 @@
 
 
 def get_num_rich_agents(model):
-    """ return number of rich agents"""
+    """return number of rich agents"""
 
     rich_agents = [a for a in model.schedule.agents if a.savings > model.rich_threshold]
     return len(rich_agents)
diff --git a/examples/pd_grid/pd_grid/agent.py b/examples/pd_grid/pd_grid/agent.py
index c923d3fc4b1..a8985b2a78a 100644
--- a/examples/pd_grid/pd_grid/agent.py
+++ b/examples/pd_grid/pd_grid/agent.py
@@ -2,7 +2,7 @@
 
 
 class PDAgent(Agent):
-    """ Agent member of the iterated, spatial prisoner's dilemma model. """
+    """Agent member of the iterated, spatial prisoner's dilemma model."""
 
     def __init__(self, pos, model, starting_move=None):
         """
@@ -28,7 +28,7 @@ def isCooroperating(self):
         return self.move == "C"
 
     def step(self):
-        """ Get the neighbors' moves, and change own move accordingly. """
+        """Get the neighbors' moves, and change own move accordingly."""
         neighbors = self.model.grid.get_neighbors(self.pos, True, include_center=True)
         best_neighbor = max(neighbors, key=lambda a: a.score)
         self.next_move = best_neighbor.move
diff --git a/examples/pd_grid/pd_grid/model.py b/examples/pd_grid/pd_grid/model.py
index 01f02b9772d..9bba389867e 100644
--- a/examples/pd_grid/pd_grid/model.py
+++ b/examples/pd_grid/pd_grid/model.py
@@ -7,7 +7,7 @@
 
 
 class PdGrid(Model):
-    """ Model class for iterated, spatial prisoner's dilemma model. """
+    """Model class for iterated, spatial prisoner's dilemma model."""
 
     schedule_types = {
         "Sequential": BaseScheduler,
@@ -60,6 +60,6 @@ def step(self):
         self.datacollector.collect(self)
 
     def run(self, n):
-        """ Run the model for n steps. """
+        """Run the model for n steps."""
         for _ in range(n):
             self.step()
diff --git a/examples/schelling/model.py b/examples/schelling/model.py
index bcb7f5c4ad1..a2ca410bb6f 100644
--- a/examples/schelling/model.py
+++ b/examples/schelling/model.py
@@ -41,7 +41,7 @@ class Schelling(Model):
     """
 
     def __init__(self, height=20, width=20, density=0.8, minority_pc=0.2, homophily=3):
-        """"""
+        """ """
 
         self.height = height
         self.width = width