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I can"t really think of any reason why Python needs the del
keyword (and most languages seem to not have a similar keyword). For instance, rather than deleting a variable, one could just assign None
to it. And when deleting from a dictionary, a del
method could be added.
Is there a reason to keep del
in Python, or is it a vestige of Python"s pre-garbage collection days?
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When is del useful in Python? __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
When is del useful in Python? __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 When is del useful in Python?, 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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California | 2023-03-24
Maybe there are another answers? What When is del useful in Python? exactly means?. I am just not quite sure it is the best method
Singapore | 2023-03-24
Simply put and clear. Thank you for sharing. When is del useful in Python? and other issues with re Python module was always my weak point 😁. I am just not quite sure it is the best method
Tallinn | 2023-03-24
code Python module is always a bit confusing 😭 When is del useful in Python? is not the only problem I encountered. Checked yesterday, it works!