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Introspeksi Kode
Code introspection adalah kemampuan untuk memeriksa kelas, fungsi, dan kata kunci untuk mengetahui apa yang mereka lakukan dan apa yang mereka ketahui.
Python menyediakan beberapa fungsi dan utilitas untuk introspeksi kode.
help()
dir()
hasattr()
id()
type()
repr()
callable()
issubclass()
isinstance()
__doc__
__name__
Seringkali yang paling penting adalah fungsi help, karena Anda dapat menggunakannya untuk menemukan apa yang dilakukan fungsi lain.
Exercise
Cetak daftar semua atribut dari objek Vehicle yang diberikan.
# Use the help function to see what each function does.
# Delete this when you are done.
help(dir)
help(hasattr)
help(id)
# Define the Vehicle class.
class Vehicle:
name = ""
kind = "car"
color = ""
value = 100.00
def description(self):
desc_str = "%s is a %s %s worth $%.2f." % (self.name, self.color, self.kind, self.value)
return desc_str
# Print a list of all attributes of the Vehicle class.
# Your code goes here
# Define the Vehicle class
class Vehicle:
name = ""
kind = "car"
color = ""
value = 100.00
def description(self):
desc_str = "%s is a %s %s worth $%.2f." % (self.name, self.color, self.kind, self.value)
return desc_str
# Print a list of all attributes of the Vehicle class.
print(dir(Vehicle))
test_output_contains("['__doc__', '__module__', 'color', 'description', 'kind', 'name', 'value']")
test_student_typed("print")
success_msg("Very nice!")
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