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I am going to convert a Django QuerySet to a pandas DataFrame
as follows:
qs = SomeModel.objects.select_related().filter(date__year=2012)
q = qs.values("date", "OtherField")
df = pd.DataFrame.from_records(q)
It works, but is there a more efficient way?
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Converting Django QuerySet to pandas DataFrame __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
Converting Django QuerySet to pandas DataFrame __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 Converting Django QuerySet to pandas DataFrame, check other __del__-related topics.
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Abu Dhabi | 2023-03-24
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London | 2023-03-24
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Massachussetts | 2023-03-24
Simply put and clear. Thank you for sharing. Converting Django QuerySet to pandas DataFrame and other issues with FFI PHP module was always my weak point 😁. Will get back tomorrow with feedback