black gcd.py

Author: rocky

test/data/step-311.right

@@ -14,10 +14,10 @@ line - gcd.py:11
 -- 11 import sys
  11  ->	import sys
 Set stopping is off.
-line - gcd.py:13
-line - gcd.py:26
-line - gcd.py:40
-(gcd.py:40): <module>
--- 40 if __name__=='__main__':
- 40  ->	if __name__=='__main__':
+line - gcd.py:14
+line - gcd.py:27
+line - gcd.py:42
+(gcd.py:42): <module>
+-- 42 if __name__ == "__main__":
+ 42  ->	if __name__ == "__main__":
 trepan3k: That's all, folks...

test/example/gcd.py

@@ -10,36 +10,38 @@
 """
 import sys
 
+
 def check_args():
     if len(sys.argv) != 3:
         # Rather than use sys.exit let's just raise an error
         raise Exception(f"Need to give two numbers; got: {sys.argv}")
     for i in range(2):
         try:
-            sys.argv[i+1] = int(sys.argv[i+1])
+            sys.argv[i + 1] = int(sys.argv[i + 1])
         except ValueError:
-            print("** Expecting an integer, got: %s" % repr(sys.argv[i]))
+            print(f"** Expecting an integer, got: {repr(sys.argv[i])}")
             sys.exit(2)
-            pass
         pass
 
-def gcd(a,b):
-    """ GCD. We assume positive numbers"""
+
+def gcd(a, b):
+    """GCD. We assume positive numbers"""
 
     # Make: a <= b
     if a > b:
-       (a, b) = (b, a)
-       pass
+        (a, b) = (b, a)
+        pass
 
     if a <= 0:
         return None
-    if a == 1 or b-a == 0:
+    if a == 1 or b - a == 0:
         return a
-    return gcd(b-a, a)
+    return gcd(b - a, a)
+
 
-if __name__=='__main__':
+if __name__ == "__main__":
     check_args()
 
     (a, b) = sys.argv[1:3]
-    print("The GCD of %d and %d is %d" % (a, b, gcd(a, b)))
+    print(f"The GCD of {a} and {b} is {gcd(a, b)}")
     pass