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What it the difference between running two commands:
foo = FooModel()
and
bar = BarModel.objects.create()
Does the second one immediately create a BarModel
in the database, while for FooModel
, the save()
method has to be called explicitly to add it to the database?
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Django Model() vs Model.objects.create() __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
Django Model() vs Model.objects.create() __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 Django Model() vs Model.objects.create(), 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.
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San Francisco | 2023-03-24
iat is always a bit confusing 😭 Django Model() vs Model.objects.create() is not the only problem I encountered. I just hope that will not emerge anymore
Shanghai | 2023-03-24
StackOverflow is always a bit confusing 😭 Django Model() vs Model.objects.create() is not the only problem I encountered. I just hope that will not emerge anymore
California | 2023-03-24
COM PHP module is always a bit confusing 😭 Django Model() vs Model.objects.create() is not the only problem I encountered. I am just not quite sure it is the best method