Merge branch 'master' into django-todo-list

Author: gahjelle

.circleci/config.yml

@@ -6,7 +6,7 @@ version: 2
 jobs:
   build:
     docker:
-      - image: circleci/python:3.8
+      - image: circleci/python:3.10
 
     working_directory: ~/repo
 

mandelbrot-set-python/01_scatter_plot.py

@@ -13,7 +13,7 @@ def complex_matrix(xmin, xmax, ymin, ymax, pixel_density):
 def is_stable(c, num_iterations):
     z = 0
     for _ in range(num_iterations):
-        z = z ** 2 + c
+        z = z**2 + c
     return abs(z) <= 2
 
 

mandelbrot-set-python/02_bw_plot.py

@@ -13,7 +13,7 @@ def complex_matrix(xmin, xmax, ymin, ymax, pixel_density):
 def is_stable(c, num_iterations):
     z = 0
     for _ in range(num_iterations):
-        z = z ** 2 + c
+        z = z**2 + c
     return abs(z) <= 2
 
 

mandelbrot-set-python/mandelbrot_01.py

@@ -10,7 +10,7 @@ class MandelbrotSet:
     def __contains__(self, c: complex) -> bool:
         z = 0
         for _ in range(self.max_iterations):
-            z = z ** 2 + c
+            z = z**2 + c
             if abs(z) > 2:
                 return False
         return True

mandelbrot-set-python/mandelbrot_02.py

@@ -16,7 +16,7 @@ def stability(self, c: complex) -> float:
     def escape_count(self, c: complex) -> int:
         z = 0
         for iteration in range(self.max_iterations):
-            z = z ** 2 + c
+            z = z**2 + c
             if abs(z) > 2:
                 return iteration
         return self.max_iterations

mandelbrot-set-python/mandelbrot_03.py

@@ -20,7 +20,7 @@ def stability(self, c: complex, smooth=False, clamp=True) -> float:
     def escape_count(self, c: complex, smooth=False) -> int | float:
         z = 0
         for iteration in range(self.max_iterations):
-            z = z ** 2 + c
+            z = z**2 + c
             if abs(z) > self.escape_radius:
                 if smooth:
                     return iteration + 1 - log(log(abs(z))) / log(2)

primer-on-python-decorators/examples.py

@@ -107,7 +107,7 @@ def wrapper_decorator(*args, **kwargs):
 @timer
 def waste_some_time(num_times):
     for _ in range(num_times):
-        sum([i ** 2 for i in range(10000)])
+        sum([i**2 for i in range(10000)])
 
 
 # Debugging Code
@@ -178,7 +178,7 @@ def radius(self, value):
     @property
     def area(self):
         """Calculate area inside circle"""
-        return self.pi() * self.radius ** 2
+        return self.pi() * self.radius**2
 
     def cylinder_volume(self, height):
         """Calculate volume of cylinder with circle as base"""
@@ -204,7 +204,7 @@ def __init__(self, max_num):
     @timer
     def waste_time(self, num_times):
         for _ in range(num_times):
-            sum([i ** 2 for i in range(self.max_num)])
+            sum([i**2 for i in range(self.max_num)])
 
 
 # Nesting Decorators
@@ -240,4 +240,4 @@ def fibonacci_lru(num):
 # Adding Information About Units
 @set_unit("cm^3")
 def volume(radius, height):
-    return math.pi * radius ** 2 * height
+    return math.pi * radius**2 * height

pyproject.toml

@@ -1,6 +1,6 @@
 [tool.black]
 line-length = 79
-target-version = ["py36"]
+target-version = ["py310"]
 exclude = '''
 /(
   \.git

python-scipy-cluster-optimize/minimize_scalar.py

@@ -9,15 +9,15 @@
 
 
 def objective_function(x):
-    return 3 * x ** 4 - 2 * x + 1
+    return 3 * x**4 - 2 * x + 1
 
 
 res = minimize_scalar(objective_function)
 print(res)
 
 
 def objective_function(x):
-    return x ** 4 - x ** 2
+    return x**4 - x**2
 
 
 res = minimize_scalar(objective_function, method="brent")

python-sockets-tutorial/app-client.py

@@ -27,7 +27,7 @@ def create_request(action, value):
 
 def start_connection(host, port, request):
     addr = (host, port)
-    print("starting connection to", addr)
+    print(f"Starting connection to {addr}")
     sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
     sock.setblocking(False)
     sock.connect_ex(addr)
@@ -37,7 +37,7 @@ def start_connection(host, port, request):
 
 
 if len(sys.argv) != 5:
-    print("usage:", sys.argv[0], "<host> <port> <action> <value>")
+    print(f"Usage: {sys.argv[0]} <host> <port> <action> <value>")
     sys.exit(1)
 
 host, port = sys.argv[1], int(sys.argv[2])
@@ -54,14 +54,14 @@ def start_connection(host, port, request):
                 message.process_events(mask)
             except Exception:
                 print(
-                    "main: error: exception for",
-                    f"{message.addr}:\n{traceback.format_exc()}",
+                    f"Main: Error: Exception for {message.addr}:\n"
+                    f"{traceback.format_exc()}"
                 )
                 message.close()
         # Check for a socket being monitored to continue.
         if not sel.get_map():
             break
 except KeyboardInterrupt:
-    print("caught keyboard interrupt, exiting")
+    print("Caught keyboard interrupt, exiting")
 finally:
     sel.close()