1 files changed, 19 insertions, 18 deletions
diff --git a/tests/extmod/ure_sub.py b/tests/extmod/ure_sub.py
index 4aeb8650a..6bb332077 100644
--- a/tests/extmod/ure_sub.py
+++ b/tests/extmod/ure_sub.py
@@ -4,58 +4,59 @@ except ImportError:
     try:
         import re
     except ImportError:
-        print('SKIP')
+        print("SKIP")
         raise SystemExit
 
 try:
     re.sub
 except AttributeError:
-    print('SKIP')
+    print("SKIP")
     raise SystemExit
 
 
 def multiply(m):
     return str(int(m.group(0)) * 2)
 
+
 print(re.sub("\d+", multiply, "10 20 30 40 50"))
 
 print(re.sub("\d+", lambda m: str(int(m.group(0)) // 2), "10 20 30 40 50"))
 
+
 def A():
     return "A"
-print(re.sub('a', A(), 'aBCBABCDabcda.'))
+
+
+print(re.sub("a", A(), "aBCBABCDabcda."))
 
 print(
     re.sub(
-        r'def\s+([a-zA-Z_][a-zA-Z_0-9]*)\s*\(\s*\):', 
-        'static PyObject*\npy_\\1(void){\n  return;\n}\n', 
-        '\n\ndef myfunc():\n\ndef myfunc1():\n\ndef myfunc2():'
+        r"def\s+([a-zA-Z_][a-zA-Z_0-9]*)\s*\(\s*\):",
+        "static PyObject*\npy_\\1(void){\n  return;\n}\n",
+        "\n\ndef myfunc():\n\ndef myfunc1():\n\ndef myfunc2():",
     )
-) 
+)
 
 print(
-    re.compile(
-         '(calzino) (blu|bianco|verde) e (scarpa) (blu|bianco|verde)'
-    ).sub(
-        r'\g<1> colore \2 con \g<3> colore \4? ...',
-        'calzino blu e scarpa verde'
+    re.compile("(calzino) (blu|bianco|verde) e (scarpa) (blu|bianco|verde)").sub(
+        r"\g<1> colore \2 con \g<3> colore \4? ...", "calzino blu e scarpa verde"
     )
 )
 
 # no matches at all
-print(re.sub('a', 'b', 'c'))
+print(re.sub("a", "b", "c"))
 
 # with maximum substitution count specified
-print(re.sub('a', 'b', '1a2a3a', 2))
+print(re.sub("a", "b", "1a2a3a", 2))
 
 # invalid group
 try:
-    re.sub('(a)', 'b\\2', 'a')
+    re.sub("(a)", "b\\2", "a")
 except:
-    print('invalid group')
+    print("invalid group")
 
 # invalid group with very large number (to test overflow in uPy)
 try:
-    re.sub('(a)', 'b\\199999999999999999999999999999999999999', 'a')
+    re.sub("(a)", "b\\199999999999999999999999999999999999999", "a")
 except:
-    print('invalid group')
+    print("invalid group")