👻 Check our latest review to choose the best laptop for Machine Learning engineers and Deep learning tasks!
I"m looking to do this:
class Place(models.Model):
name = models.CharField(max_length=20)
rating = models.DecimalField()
class LongNamedRestaurant(Place): # Subclassing ’Place’.
name = models.CharField(max_length=255) # Notice, I"m overriding ’Place.name’ to give it a longer length.
food_type = models.CharField(max_length=25)
This is the version I would like to use (although I"m open to any suggestion): http://docs.djangoproject.com/en/dev/topics/db/models/#id7
Is this supported in Django? If not, is there a way to achieve similar results?
👻 Read also: what is the best laptop for engineering students?
In Django - Model Inheritance - Does it allow you to override a parent model"s attribute? __del__: Questions
How can I make a time delay in Python?
5 answers
I would like to know how to put a time delay in a Python script.
Answer #1
import time
time.sleep(5) # Delays for 5 seconds. You can also use a float value.
Here is another example where something is run approximately once a minute:
import time
while True:
print("This prints once a minute.")
time.sleep(60) # Delay for 1 minute (60 seconds).
Answer #2
You can use the sleep() function in the time module. It can take a float argument for sub-second resolution.
from time import sleep
sleep(0.1) # Time in seconds
In Django - Model Inheritance - Does it allow you to override a parent model"s attribute? __del__: Questions
How to delete a file or folder in Python?
5 answers
How do I delete a file or folder in Python?
Answer #1
os.remove()removes a file.os.rmdir()removes an empty directory.shutil.rmtree()deletes a directory and all its contents.
Path objects from the Python 3.4+ pathlib module also expose these instance methods:
pathlib.Path.unlink()removes a file or symbolic link.pathlib.Path.rmdir()removes an empty directory.
We hope this article has helped you to resolve the problem. Apart from In Django – Model Inheritance – Does it allow you to override a parent model”s attribute?, check other __del__-related topics.
Want to excel in Python? See our review of the best Python online courses 2023. If you are interested in Data Science, check also how to learn programming in R.
By the way, this material is also available in other languages:
- Italiano In Django – Model Inheritance – Does it allow you to override a parent model”s attribute?
- Deutsch In Django – Model Inheritance – Does it allow you to override a parent model”s attribute?
- Français In Django – Model Inheritance – Does it allow you to override a parent model”s attribute?
- Español In Django – Model Inheritance – Does it allow you to override a parent model”s attribute?
- Türk In Django – Model Inheritance – Does it allow you to override a parent model”s attribute?
- Русский In Django – Model Inheritance – Does it allow you to override a parent model”s attribute?
- Português In Django – Model Inheritance – Does it allow you to override a parent model”s attribute?
- Polski In Django – Model Inheritance – Does it allow you to override a parent model”s attribute?
- Nederlandse In Django – Model Inheritance – Does it allow you to override a parent model”s attribute?
- 中文 In Django – Model Inheritance – Does it allow you to override a parent model”s attribute?
- 한국어 In Django – Model Inheritance – Does it allow you to override a parent model”s attribute?
- 日本語 In Django – Model Inheritance – Does it allow you to override a parent model”s attribute?
- हिन्दी In Django – Model Inheritance – Does it allow you to override a parent model”s attribute?
Paris | 2023-03-24
Thanks for explaining! I was stuck with In Django – Model Inheritance – Does it allow you to override a parent model”s attribute? for some hours, finally got it done 🤗. Checked yesterday, it works!
Moscow | 2023-03-24
http Python module is always a bit confusing 😭 In Django – Model Inheritance – Does it allow you to override a parent model”s attribute? is not the only problem I encountered. I just hope that will not emerge anymore
Boston | 2023-03-24
Simply put and clear. Thank you for sharing. In Django – Model Inheritance – Does it allow you to override a parent model”s attribute? and other issues with Ev PHP module was always my weak point 😁. Will use it in my bachelor thesis
