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RuntimeWarning: DateTimeField received a naive datetime
...to the model. Here's how a timezone-aware object looks like:
>>> from django.utils import timezone
>>> import pytz
>>> timezone.now()
datetime.datetime(2013, 11, 20, 20, 8, 7, 127325, tzinfo=pytz.UTC)
And here's a naive object:
>>> from datetime import datetim...
Thread context switch Vs. process context switch
...ching which is shortly mentioned here: youtu.be/3akTtCu_F_k?t=46m8s (watch from the beginning to know more about Virtual Memory, page tables and TLB).
– piotrwest
Jun 24 '16 at 23:05
...
Difference between break and continue statement
...reak
You can label a block, not only a for-loop, and then break/continue from a nested block to an outer one. In few cases this might be useful, but in general you'll try to avoid such code, except the logic of the program is much better to understand than in the following example:
first:
for (in...
Running single test from unittest.TestCase via command line
...lls you about several combinations that allow you to run test case classes from a module and test methods from a test case class.
python3 -m unittest -h
[...]
Examples:
python3 -m unittest test_module - run tests from test_module
python3 -m unittest module.TestClass - r...
About .bash_profile, .bashrc, and where should alias be written in? [duplicate]
...aving the commands source ~/.profile and source ~/.bashrc will not source from the newly logged in user's home folder but the home folder of the user you signed into your computer with. Maybe there is another solution than using ~/
– John
Aug 27 at 22:07
...
Python “raise from” usage
What's the difference between raise and raise from in Python?
1 Answer
1
...
What should main() return in C and C++?
...tes how the program exited. Normal exit is represented by a 0 return value from main. Abnormal exit is signaled by a non-zero return, but there is no standard for how non-zero codes are interpreted. As noted by others, void main() is prohibited by the C++ standard and should not be used. The valid C...
How to send email attachments?
...
Here's another:
import smtplib
from os.path import basename
from email.mime.application import MIMEApplication
from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText
from email.utils import COMMASPACE, formatdate
def send_mai...
How to install pip with Python 3?
...nd Ubuntu (Trusty Tahr and newer) for Python 2.x
Run the following command from a terminal:
sudo apt-get install python-pip
Installing on Debian (Wheezy and newer) and Ubuntu (Trusty Tahr and newer) for Python 3.x
Run the following command from a terminal:
sudo apt-get install python3-pip
Note:
O...
Git cherry pick vs rebase
...f less obvious use.)
git cherry-pick is for bringing an interesting commit from one line of development to another. A classic example is backporting a security fix made on an unstable development branch to a stable (maintenance) branch, where a merge makes no sense, as it would bring a whole lot of...