👻 Check our latest review to choose the best laptop for Machine Learning engineers and Deep learning tasks!
Suppose I have a model:
class SomeModel(models.Model):
id = models.AutoField(primary_key=True)
a = models.CharField(max_length=10)
b = models.CharField(max_length=7)
Currently I am using the default admin to create/edit objects of this type.
How do I remove the field b from the admin so that each object cannot be created with a value, and rather will receive a default value of 0000000?
👻 Read also: what is the best laptop for engineering students?
Default value for field in Django model __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
Default value for field in Django model __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 Default value for field in Django model, 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 Default value for field in Django model
- Deutsch Default value for field in Django model
- Français Default value for field in Django model
- Español Default value for field in Django model
- Türk Default value for field in Django model
- Русский Default value for field in Django model
- Português Default value for field in Django model
- Polski Default value for field in Django model
- Nederlandse Default value for field in Django model
- 中文 Default value for field in Django model
- 한국어 Default value for field in Django model
- 日本語 Default value for field in Django model
- हिन्दी Default value for field in Django model
Paris | 2023-03-24
I was preparing for my coding interview, thanks for clarifying this - Default value for field in Django model in Python is not the simplest one. Checked yesterday, it works!
Paris | 2023-03-24
Maybe there are another answers? What Default value for field in Django model exactly means?. Will get back tomorrow with feedback
Shanghai | 2023-03-24
Simply put and clear. Thank you for sharing. Default value for field in Django model and other issues with re Python module was always my weak point 😁. I just hope that will not emerge anymore
