ch04

2021-10-28 17:37:54 +05:30
parent 8b802c5c62
commit ee641c189f
49 changed files with 601 additions and 0 deletions
@@ -0,0 +1,16 @@
+# parameters.keyword.only.py
+def kwo(*a, c):
+    print(a, c)
+
+kwo(1, 2, 3, c=7)  # prints: (1, 2, 3) 7
+kwo(c=4)           # prints: () 4
+# kwo(1, 2)  # breaks, invalid syntax, with the following error
+# TypeError: kwo() missing 1 required keyword-only argument: 'c'
+
+def kwo2(a, b=42, *, c):
+    print(a, b, c)
+
+kwo2(3, b=7, c=99)  # prints: 3 7 99
+kwo2(3, c=13)       # prints: 3 42 13
+# kwo2(3, 23)  # breaks, invalid syntax, with the following error
+# TypeError: kwo2() missing 1 required keyword-only argument: 'c'