Data commit

Task/Boolean-values/Python/boolean-values.py

@@ -0,0 +1,39 @@
+>>> True
+True
+>>> not True
+False
+>>> # As numbers
+>>> False + 0
+0
+>>> True + 0
+1
+>>> False + 0j
+0j
+>>> True * 3.141
+3.141
+>>> # Numbers as booleans
+>>> not 0
+True
+>>> not not 0
+False
+>>> not 1234
+False
+>>> bool(0.0)
+False
+>>> bool(0j)
+False
+>>> bool(1+2j)
+True
+>>> # Collections as booleans
+>>> bool([])
+False
+>>> bool([None])
+True
+>>> 'I contain something' if (None,) else 'I am empty'
+'I contain something'
+>>> bool({})
+False
+>>> bool("")
+False
+>>> bool("False")
+True