diff --git a/src/evox/algorithms/mo/bige.py b/src/evox/algorithms/mo/bige.py
index 45c0ab54..72640895 100644
--- a/src/evox/algorithms/mo/bige.py
+++ b/src/evox/algorithms/mo/bige.py
@@ -62,7 +62,6 @@ def calc_sh(fit_a, pr_a, fit_b, pr_b, r):
 
 @jit_class
 class BiGE(Algorithm):
-
     def __init__(
         self,
         lb,
diff --git a/src/evox/algorithms/mo/eagmoead.py b/src/evox/algorithms/mo/eagmoead.py
index 3c1ad7c2..ad78f48f 100644
--- a/src/evox/algorithms/mo/eagmoead.py
+++ b/src/evox/algorithms/mo/eagmoead.py
@@ -40,7 +40,6 @@ def environmental_selection(fitness, n):
 
 @jit_class
 class EAGMOEAD(Algorithm):
-
     def __init__(
         self,
         lb,
diff --git a/src/evox/algorithms/mo/gde3.py b/src/evox/algorithms/mo/gde3.py
index 858c8539..1165c278 100644
--- a/src/evox/algorithms/mo/gde3.py
+++ b/src/evox/algorithms/mo/gde3.py
@@ -22,7 +22,6 @@
 
 @jit_class
 class GDE3(Algorithm):
-
     def __init__(
         self,
         lb,
diff --git a/src/evox/algorithms/mo/ibea.py b/src/evox/algorithms/mo/ibea.py
index 616b2cad..05bf6996 100644
--- a/src/evox/algorithms/mo/ibea.py
+++ b/src/evox/algorithms/mo/ibea.py
@@ -34,7 +34,6 @@ def cal_fitness(pop_obj, kappa):
 
 @jit_class
 class IBEA(Algorithm):
-
     def __init__(
         self,
         lb,
diff --git a/src/evox/algorithms/mo/knea.py b/src/evox/algorithms/mo/knea.py
index 2db8fdc6..0f0ac942 100644
--- a/src/evox/algorithms/mo/knea.py
+++ b/src/evox/algorithms/mo/knea.py
@@ -37,7 +37,6 @@ def calc_DW(fit, k):
 
 @jit_class
 class KnEA(Algorithm):
-
     def __init__(
         self,
         lb,
diff --git a/src/evox/algorithms/mo/moead.py b/src/evox/algorithms/mo/moead.py
index 46b0574f..9eb4a1e3 100644
--- a/src/evox/algorithms/mo/moead.py
+++ b/src/evox/algorithms/mo/moead.py
@@ -20,7 +20,6 @@
 
 @jit_class
 class MOEAD(Algorithm):
-
     def __init__(
         self,
         lb,
diff --git a/src/evox/algorithms/mo/moeaddra.py b/src/evox/algorithms/mo/moeaddra.py
index 8fdcccac..1759dbd5 100644
--- a/src/evox/algorithms/mo/moeaddra.py
+++ b/src/evox/algorithms/mo/moeaddra.py
@@ -20,7 +20,6 @@
 
 @jit_class
 class MOEADDRA(Algorithm):
-
     def __init__(
         self,
         lb,
diff --git a/src/evox/algorithms/mo/moeadm2m.py b/src/evox/algorithms/mo/moeadm2m.py
index 896adb38..d476b48d 100644
--- a/src/evox/algorithms/mo/moeadm2m.py
+++ b/src/evox/algorithms/mo/moeadm2m.py
@@ -94,7 +94,6 @@ def false_fun(c):
 
 @jit_class
 class MOEADM2M(Algorithm):
-
     def __init__(
         self,
         lb,
diff --git a/src/evox/algorithms/mo/nsga3.py b/src/evox/algorithms/mo/nsga3.py
index 0a665687..bab79d16 100644
--- a/src/evox/algorithms/mo/nsga3.py
+++ b/src/evox/algorithms/mo/nsga3.py
@@ -25,7 +25,6 @@
 
 @jit_class
 class NSGA3(Algorithm):
-
     def __init__(
         self,
         lb,
diff --git a/src/evox/algorithms/mo/rvea.py b/src/evox/algorithms/mo/rvea.py
index 1635c762..aecec988 100644
--- a/src/evox/algorithms/mo/rvea.py
+++ b/src/evox/algorithms/mo/rvea.py
@@ -15,7 +15,6 @@
 
 @jit_class
 class RVEA(Algorithm):
-
     def __init__(
         self,
         lb,
diff --git a/src/evox/algorithms/mo/spea2.py b/src/evox/algorithms/mo/spea2.py
index 99ac090b..1ed046dd 100644
--- a/src/evox/algorithms/mo/spea2.py
+++ b/src/evox/algorithms/mo/spea2.py
@@ -69,7 +69,6 @@ def body_fun(vals):
 
 @jit_class
 class SPEA2(Algorithm):
-
     def __init__(
         self,
         lb,
diff --git a/src/evox/algorithms/mo/sra.py b/src/evox/algorithms/mo/sra.py
index 68f6386d..bd24de01 100644
--- a/src/evox/algorithms/mo/sra.py
+++ b/src/evox/algorithms/mo/sra.py
@@ -113,7 +113,6 @@ def in_body(j, d):
 
 @jit_class
 class SRA(Algorithm):
-
     def __init__(
         self,
         lb,
diff --git a/src/evox/algorithms/mo/tdea.py b/src/evox/algorithms/mo/tdea.py
index bbbbcda5..6dc5ba89 100644
--- a/src/evox/algorithms/mo/tdea.py
+++ b/src/evox/algorithms/mo/tdea.py
@@ -99,7 +99,6 @@ def environmental_selection(pop, obj, w, n, z, z_nad):
 
 @jit_class
 class TDEA(Algorithm):
-
     def __init__(
         self,
         lb,