python
Get year, month or day from numpy datetime64
I have an array of datetime64 type:
SQLite parameter substitution and quotes
I have this line that works OK:
How to execute a function asynchronously every 60 seconds in Python?
I want to execute a function every 60 seconds on Python but I don’t want to be blocked meanwhile.
django – convert a list back to a queryset
I have a handful of records that I would like to sort based on a computed value. Got the answer over here… like so: sorted(Profile.objects.all(), key=lambda p: p.reputation) on a Profile class like this: class Profile(models.Model): … @property def reputation(self): … Unfortunately the generic view is expecting a queryset object and throws an error if … Read more
Nested list comprehensions
I tried to use the value of an outer list comprehension in an inner one:
What does “lambda” mean in Python, and what’s the simplest way to use it?
Can you give an example and other examples that show when and when not to use Lambda?
My book gives me examples, but they’re confusing.
Qt and opencv app not working in virtual environment
I created a GUI app using pyqt5 and opencv. The app works fine without activating the virtual env but when I activate the virtual env and run the app it shows this error:
Setting values on a copy of a slice from a DataFrame
A value is trying to be set on a copy of a slice from a DataFrame. Try
using .loc[row_indexer,col_indexer] = value instead
Unicode identifiers in Python?
I want to build a Python function that calculates,