Python class inheritance - spooky action

Python class inheritance - spooky action

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Python class inheritance - spooky action
Tag : python , By : Chris Woods
Date : November 23 2020, 01:01 AM

I hope this helps . The aedion.project module does two things:
class ProjectMeta(type):

    Project metaclass with delegated methods added.
    Public methods are added to the class dictionary during :meth:`__new__`
    in order to fool Sphinx (and perhaps other API documentation generators)
    into thinking that the resulting instantiated class actually contains those
    methods, which it does not since the methods are removed during
# Remove class-level function added by ProjectMeta.
if hasattr(self.__class__, attr_name):
    delattr(self.__class__, attr_name)
agent = getattr(aeidon.agents, agent_class_name)(self)
# ...
attr_value = getattr(agent, attr_name)
# ...
self._delegations[attr_name] = attr_value
>>> import aeidon
>>> class Wrapper(aeidon.Project): pass
>>> wrapper = Wrapper()
>>> wrapper.open_main
<bound method Wrapper.open_main of <__main__.Wrapper object at 0x1106313a8>>
>>> wrapper.open_main.__self__
<__main__.Wrapper object at 0x1106313a8>
>>> wrapper._delegations['open_main']
<bound method OpenAgent.open_main of <aeidon.agents.open.OpenAgent object at 0x11057e780>>
>>> wrapper._delegations['open_main'].__self__
<aeidon.agents.open.OpenAgent object at 0x11057e780>
>>> Project.open_main
<function OpenAgent.open_main at 0x110602bf8>
>>> Project()
<aeidon.project.Project object at 0x1106317c8>
>>> Project.open_main
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
AttributeError: type object 'Project' has no attribute 'open_main'
>>> wrapper.open_main
<bound method OpenAgent.open_main of <aeidon.agents.open.OpenAgent object at 0x11057e780>>
>>> wrapper.open_main.__self__
<aeidon.agents.open.OpenAgent object at 0x11057e780>
class Wrapper(aeidon.Project):
    def __init__(self):
        for name in self._delegations:
            if hasattr(aeidon.Project, name):
                delattr(aeidon.Project, name)

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UITableViewCell spooky action

Tag : ios , By : Steve Jones
Date : November 22 2020, 10:31 AM
I wish this helpful for you dequeueReusableCellWithIdentifier: forIndexPath: gives you a cell, which might be a new cell, or it might be an old cell that's previously been shown, but has scrolled off the screen.
One quick fix is:
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"Cell"forIndexPath:indexPath];

Produit *object = self.objects[indexPath.row];

[cell.contentView.subviews makeObjectsPerformSelector:@selector(removeFromSuperview)];
[cell.contentView addSubview:object];

return cell;

How to call methods which are present in right side defined class. Python inheritance. multiple inheritance. Dimond scen

Tag : python , By : Salikh
Date : March 29 2020, 07:55 AM
seems to work fine I have a class which is inherited from two other classes. When I call the methods from the child class, It always calls the method which mentioned left side in in class definition. , You can either call it directly:
>>> Child.mro()
[__main__.Child, __main__.First, __main__.Second, object]
class Child(First, Second):

    def get_details_second_1(self):
        """Option 1"""
        return Second.get_details(self)

    def get_details_second_2(self):
        """Option 2"""
        return Child.mro()[2].get_details(self)

child_obj = Child()

Inheritance vs using a class object of one class as a field of another class (Python 3)

Tag : python-3.x , By : Marc
Date : March 29 2020, 07:55 AM
seems to work fine Say we have a product which is identifiable by an ID number and a Quality field which is in turn comprised of several values, one of which is 2d dimensions values. Is this a case of inheritance or just using an object as another classes' field? ,
Is what I am trying to do above achieved via inheritance?
class Dimensions:
    def __init__(self, x, y):
        self.x = x
        self.y = y

class Quality:
    def __init__(self, val1, val2, dimensions):
        self.val1 = val1
        self.val2 = val2
        self.dimensions = dimensions

class Product:
    def __init__(self, id, quality):
        self.id = id
        self.quality = quality

dimensions = Dimensions(1, 2)
quality = Quality("A", "B", dimensions)
product = Product(42, quality)
class Dimensions:
    def __init__(self, x, y):
        self.x = x
        self.y = y

class Quality:
    def __init__(self, val1, val2, x, y):
        self.val1 = val1
        self.val2 = val2
        self.dimensions = Dimensions(x, y)

class Product:
    def __init__(self, id, val1, val2, x, y):
        self.id = id
        self.quality = Quality(val1, val2, x, y)

product = Product(42, "A", "B", 1, 2)

Is function inheritance possible like class inheritance in python?

Tag : python , By : Porta
Date : March 29 2020, 07:55 AM
fixed the issue. Will look into that further As mentioned in the comments, you have it setup to only play the alarm iff the user clicks the button at the time the alarm is set to. Instead, you should check the time every second, and play the alarm at the given time:
def alarm_time():
    hrs = int(hrs_opt_ctrl.get())
    min = int(min_opt_ctrl.get())
    tme = tme_ctrl.get()
    if hrs == int(time.strftime('%I')) and min == int(time.strftime('%M')) and tme == time.strftime('%p'):
        # Time is up. Play the sound
        alarm_ringtone = pygame.mixer.music.load('alarm_noise.mp3')
        # Don't call after again
        # Not time, sleep for 1 second
        window.after(1000, alarm_time)
from tkinter import *
import pygame
import time


window = Tk()

#logo = PhotoImage(file='alarm.gif')

lab_1 = Label(window, text='Alarm Clock', font=('Times',20,'bold')).grid(column=200, row=0)
lab_3 = Label(window, text='Hours', font=('Comic',10,'bold')).grid(column=50,row=10, columnspan=3)
lab_4 = Label(window, text='Minutes', font=('Comic',10,'bold')).grid(column=90,row=10, columnspan=3)

# Alarm class
class Alarm:
    alarm_id = 1
    def __init__(self, hours, minutes, ampm, sound_file):
        self.sound_file = sound_file
        # Convert hours, minutes, ampm to a timestamp
        # Save time as a timestamp
        t = time.localtime()
        t = time.strptime(f"{t.tm_year}-{t.tm_mon}-{t.tm_mday} {hours} {minutes} {ampm}", "%Y-%m-%d %I %M %p")
        self.alarm_time = time.mktime(t)
        # Number of seconds to snooze
        self.snooze_time = None
        self.completed = False   # Set to True after alarm has gone off
        self.id = Alarm.alarm_id
        Alarm.alarm_id += 1

    # Every time this is called, it checks the time to see if the alarm should go off
    def check_time(self, cur_time):
        # Use alarm time or snooze time?
        on_time = self.snooze_time if self.snooze_time else self.alarm_time
        # Since might not be called when seconds is 0, check if it is with one minute of alarm time
        time_diff = cur_time - on_time
        if not self.completed and time_diff >= 0 and time_diff < 60:
            self.completed = True
            alarm_ringtone = pygame.mixer.music.load(self.sound_file)
        # Reset after 30 minutes - add 24 hours (daily timer)
        elif self.completed and time_diff > 1800 and time_diff < 1860:
            self.completed = False
            self.snooze_time = None
            self.alarm_time += 24 * 60 * 60

    def snooze(self, minutes):
        if self.completed and pygame.mixer.music.get_busy():
            self.snooze_time = time.time() + (minutes * 60)
            self.completed = False

    # Convert to string for printing
    def __str__(self):
        id_str = f"[{self.id}]: "
        if self.completed:
            return id_str + ("Alarm in progress" if pygame.mixer.music.get_busy() else "Alarm completed")
        elif self.snooze_time:
            time_left = int(self.snooze_time - time.time())
            minutes = time_left // 60
            seconds = time_left % 60
            if minutes:
                return id_str + f"Snoozing for {minutes} minutes and {seconds} seconds"
                return id_str + f"Snoozing for {seconds} seconds"
            return id_str + f"Alarm set for {time.ctime(self.alarm_time)}"

# This list holds all alarms
all_alarms = []

# Tell all alarms to check the time
def check_alarms():
    now = time.time()
    for alarm in all_alarms:
        print(f"Checking: {alarm}");
    # Call again after 1 second
    window.after(1000, check_alarms)

# Creates a single object of the Alarm class
# Uses values from the option controls
def create_alarm():
    hours = int(hrs_opt_ctrl.get())
    minutes = int(min_opt_ctrl.get())
    ampm = tme_ctrl.get()
    alarm = Alarm(hours, minutes, ampm, "alarm.mp3")
    print(f"Adding: {alarm}");

# Snoozes all active alarms for 2 minutes
def snooze_current():
    for alarm in all_alarms:

but = Button(window, text='Set Alarm', font=('Comic',10,'bold'), command=create_alarm).grid(column=100,row=15)
snooze = Button(window, text='Snooze', font=('Comic',10,'bold'), command=snooze_current).grid(column=100,row=16)
opt_hrs = []
opt_min = []
opt_tme = ('AM','PM')
for i in range(1,13):
for j in range(0,60):

hrs_opt_ctrl = StringVar()
min_opt_ctrl = StringVar()
tme_ctrl = StringVar()
hrs_lab = OptionMenu(window, hrs_opt_ctrl, *opt_hrs).grid(column=70,row=10,columnspan=3)
min_lab = OptionMenu(window, min_opt_ctrl, *opt_min).grid(column=100,row=10,columnspan=3)
tme_lab = OptionMenu(window, tme_ctrl, *opt_tme).grid(column=120,row=10,columnspan=3)

# Fill with default values of current time


Python inheritance - calling base class methods inside child class?

Tag : python , By : user152319
Date : March 29 2020, 07:55 AM
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