dantheman650 posted:

EAT THE EGGS RICOLA posted:

Is there a clean way for me to get the next item in a jinja2 loop without incrementing the loop or installing an extension that allows it?

I just want to do this cleanly:

HTML code:

    {% for thing in thing_list %}
	{{ thing.id }}
        {{ thing.next().id }}
    {% endfor %}

Thermopyle posted:

As far as the extra work of using virtualenvs...look into using virtualenvwrapper. It makes it easier. I think there's a branch for windows.

SurgicalOntologist posted:

"Default" is the wrong word here, I think baka kaba meant more along the lines of "most recommended". It is (in my opinion) "what the average person should install to get coding with minimal fuss."

duck monster posted:

Reposting this here because it might be of interest to those who also believe Python is the language of the master race, and javascript on mobile devices needs to die:

5436 posted:

Is it possible to simply program the service portion in flask and use something else for the front end? Well I guess I know its possible but is it optimal to getting off the ground quickly? I'm not really a developer so I haven't made a web app before.

KernelSlanders posted:

I'm continually amazed how Windows manages to mangle files. We bought some Bing search ads and hooked up our normal analytics pipeline to their API to download some CSVs that say how the ads did. Care to guess how it broke?

Dominoes posted:

The code I posted is straight from the declarative base page you linked. AttributeError: type object 'Person' has no attribute 'query', and I can't find your syntax on that page, although I've seen it mentioned before. Can you provide an example of querying from the model, without the syntactic sugar I posted?

Dominoes posted:

Regarding queries as generators: Per this article, they're not lazy:

Loving Africa Chaps posted:

I'm trying to get started with python having used php in the past and i'm tearing my hair out at what should be something really simple.

I'd like to iterate through a list of twitter ID's, check if they're already in a database and if not add them. For the loving life of me i can't seem to get a simple query to work at all. Every time i google for an answer people are using a slightly different way of writing a query.

Python code:

	cursor2 = mariadb_connection.cursor()
	query = ("SELECT * FROM foamites WHERE twithandle= %s")

	#scrape using the twitter api
	#this bit works and i print to a .txt
	twitterid = user.id

    cursor2.execute(query, twitterid)
    numrows = cursor2.rowcount
    	
	#if doesnt return anything 
	print "not in database"

Feral Integral posted:

So I'm working on a project that is going to soon require me to run long-running calculation jobs which are all viewed/edited/created through a django site. Whatever is going to run the jobs will ideally be able to run multiple jobs at a time without blocking other jobs, as well as be able to give status info about running jobs when asked for it.

Is there a good python framework with lots of included bells and whistles for this kind of thing anyone might recommend, or any suggestions from people that have tackled something similar?

edit: http://python-rq.org/docs/workers/ looks p cool

jon joe posted:

Which is better:

code:

dict = {}
def populate(key, tuple):
    if key in dict:
        dict[key][tuple[0]] = tuple[1]
    else:
        dict[key] = {}
        dict[key][tuple[0]] = tuple[1]

vs

code:

dict = {}
def populate(key, tuple):
    try:
        dict[key][tuple[0]] = tuple[1]
    except KeyError:
        dict[key] = {}
        dict[key][tuple[0]] = tuple[1]

priznat posted:

Hey all,

Quick question, I've got a python & flask project (displaying test results pulled from a sql database) and looking to deploy it to a proper webserver.

What would be the best webserver for this, if it has a relatively low workload (only 10 or so users max)? My first thought was apache/mod_wsgi but I had a look around and saw CherryPy and it looks ridiculously simple to get going.

Also is it worth setting this kind of thing up in a docker container or nah? Running on a CentOS 7 minimal VM in Hyper-V.

LochNessMonster posted:

When using the for loops I keep getting the same error, no matter what I try.

When running this:

Python code:

import sqlite3
conn = sqlite3.connect('vehicles.db')
cursor = conn.cursor()

testList = [{'DealerId': '2',
            'Brand': 'bmw',
            'Milage': '13.909',
            'Dealer': 'crazy jack',
            'Price': '5.000',
            'Type': 'r90',
            'Year': '1980'},
            {'DealerId': '3',
            'Brand': 'goldwing',
            'Milage': '15.564',
            'Dealer': 'Mohawk Mike',
            'Price': '8.000',
            'Type': 'goldwing',
            'Year': '2015'}]


for dictionary in testList:
    cursor.execute("INSERT INTO motorcycles VALUES(?, ?, ?, ?, ?, ?, ?)",
                   dictionary["DealerId"],
                   dictionary["Dealer"],
                   dictionary["Brand"],
                   dictionary["Type"],
                   dictionary["Price"],
                   dictionary["Milage"],
                   dictionary["Year"])

I keep getting:

code:

Traceback (most recent call last):
  File "/path/to/program/dbinsert2.py", line 29, in <module>
    dictionary["Year"])
TypeError: function takes at most 2 arguments (8 given)

Vivian Darkbloom posted:

I've been hacking away at a little game project in Python, and I stumbled across this problem. I know the solution is probably something trivial but I can't track it down and I'm increasingly bugged.

My question: I have a method that takes a class as an argument. How do I tell the method to make a new object of that class? I guess you could use __new__ but that seems odd.

ahmeni posted:

Does anyone have a pattern for logging requests in Django Rest Framework that they like? The only real solution I've seen is a middleware that requires a mixin for each APIView, which isn't too bad but I'd prefer something a tad less fiddly.

lifg posted:

Does anyone have experience or recommendations on building Python software with virtualenv and Docker?

I've used them both for toy applications, but not together. They seem to solve the same problem, just at different levels, so I don't *think* there's a benefit to using virtualenv if I'm also using Docker.

I've never used virtualization (of any sort) for software development, so this is all new to me.

Boris Galerkin posted:

I'm trying to learn/use Sphinx but I swear every single tutorial I've found is completely worthless and leaves more questions than answers. For example I just want to do something simple like this:
*snip*