File: cexample_subclass.py

package info (click to toggle)
micropython 1.25.0%2Bds-1
  • links: PTS, VCS
  • area: main
  • in suites: trixie
  • size: 48,944 kB
  • sloc: ansic: 317,850; python: 59,539; xml: 4,241; makefile: 3,530; sh: 1,421; javascript: 744; asm: 681; cpp: 45; exp: 11; pascal: 6
file content (37 lines) | stat: -rw-r--r-- 859 bytes parent folder | download | duplicates (2)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
# 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()