38 lines
859 B
Python
38 lines
859 B
Python
|
|
# test subclassing custom native class
|
||
|
|
|
||
|
|
try:
|
||
|
|
from cexample import AdvancedTimer
|
||
|
|
except ImportError:
|
||
|
|
print("SKIP")
|
||
|
|
raise SystemExit
|
||
|
|
|
||
|
|
|
||
|
|
class SubTimer(AdvancedTimer):
|
||
|
|
def __init__(self):
|
||
|
|
# At this point, self does not yet represent a AdvancedTimer instance.
|
||
|
|
print(self)
|
||
|
|
|
||
|
|
# So lookups via type.attr handler will fail.
|
||
|
|
try:
|
||
|
|
self.seconds
|
||
|
|
except AttributeError:
|
||
|
|
print("AttributeError")
|
||
|
|
|
||
|
|
# Also applies to builtin methods.
|
||
|
|
try:
|
||
|
|
self.time()
|
||
|
|
except AttributeError:
|
||
|
|
print("AttributeError")
|
||
|
|
|
||
|
|
# Initialize base class.
|
||
|
|
super().__init__(self)
|
||
|
|
|
||
|
|
# Now you can access methods and attributes normally.
|
||
|
|
self.time()
|
||
|
|
print(self.seconds)
|
||
|
|
self.seconds = 123
|
||
|
|
print(self.seconds)
|
||
|
|
|
||
|
|
|
||
|
|
watch = SubTimer()
|