Tag: python

How do I get my HTML button to delete the right list item from a SQLite database?

I’m a beginner, so forgive any stupidity in advance. I’m using Flask (and by extension Jinja2) to create a simple web app — one that basically lets you type a movie into a web form, which adds it to a SQLite database. I’ve gotten Flask to very nicely iterate through all the movies in t…

UnicodeDecodeError: ‘ascii’ codec can’t decode byte 0xd1 in position 2: ordinal not in range(128)

django python utf-8

I am attempting to work with a very large dataset that has some non-standard characters in it. I need to use unicode, as per the job specs, but I am baffled. (And quite possibly doing it all wrong.) I open the CSV using: Then, I attempt to encode it with: I’m encoding everything except the lat and lng b…

Matplotlib different size subplots

figure matplotlib plot python subplot

I need to add two subplots to a figure. One subplot needs to be about three times as wide as the second (same height). I accomplished this using GridSpec and the colspan argument but I would like to do this using figure so I can save to PDF. I can adjust the first figure using the figsize argument in the

How to use can_add_related in Django Admin

django django-admin python

I’ve read about the can_add_related feature here: https://code.djangoproject.com/ticket/9071 I tried using it this way: But this throws a TypeError and I don’t know how to solve this. Can someone point me in the right direction? Thank you. Answer This is probably coming in late. But for other view…

How to create a user in Django?

django python

I’m trying to create a new User in a Django project by the following code, but the highlighted line fires an exception. Any help? Answer The correct way to create a user in Django is to use the create_user function. This will handle the hashing of the password, etc..

Python Matplotlib Y-Axis ticks on Right Side of Plot

matplotlib python

I have a simple line plot and need to move the y-axis ticks from the (default) left side of the plot to the right side. Any thoughts on how to do this? Answer Use ax.yaxis.tick_right() for example:

How to put a variable into Python docstring

docstring python

So I’m trying to create a “dynamic” docstring which is something like this: to basically let the docstring for @param animalType show whatever ANIMAL_TYPES has; so that when this variable is updated, the docstring will be updated automatically. Unfortunately, it doesn’t seem to work. D…

How to generate SOPInstance UID for DICOM file?

dicom python uniqueidentifier uuid

I am developing a system which will be able to create structured report for PACS. Obviously in order to create a DICOM instance (file containing Report data), I need three UIDs for Study, Series and Instance. StudyUID and SeriesUID must be the same as that of study and series that report is created for. But f…

Python: setting memory limit for a particular function call

heap-memory memory process python

In a Python script, I want to set a memory limit for a certain function call. I looked at how to limit heap size; however, I don’t want to limit the memory of the entire running Python process — i.e. setting the memory limit before and after the function call. Is there any way to make a function c…

How to convert `ctime` to `datetime` in Python?

datetime python

For me at the moment, t is ‘Sat Apr 21 11:58:02 2012’. I have more data like this. My question is: How to convert t to datetime in Python? Are there any modules to to it? I tried to make a time dict and then convert t, but feel like that’s not the best way to do it in Python.