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Copy pathcexample_subclass.py
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37 lines (28 loc) · 859 Bytes
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# 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()