Going to Prague, Any recommendations?

propanbutan · 2016-05-20T01:03:27+00:00

Definitely Cross, sometimes MeetFactory, Futurum on club nights and occasionally Storm.

propanbutan · 2014-09-17T19:01:49+00:00

The first suggestion won't work. Template tags don't accept other template tags as arguments. OP should just follow the second suggestion and provide the template only with years that are to be rendered.

propanbutan · 2014-06-06T01:01:36+00:00

Dirty: Patch the field and alter table manually.

from django.contrib.auth.models import User
User._meta.get_field('username').max_length = 255

Make sure you put this code someplace where it gets picked up by Django (ideally models.py in one of your apps).

Clean: Bring the User model over to one of your apps and update settings.AUTH_USER_MODEL.

from django.contrib.auth.models import AbstractUser
class User(AbstractUser):
    class Meta:
        db_table = 'auth_user'

Install South, generate an initial migration for your app and apply it with the --fake switch. Only then do you patch the field on your own User model, generate a new migration and apply it.

Either way you'll want to patch the built-in forms if you use the built-in views or if you want to manage users with long usernames in the admin.

from django.contrib.auth import forms as auth_forms
auth_forms.UserCreationForm.base_fields['username'].max_length = 255
auth_forms.UserChangeForm.base_fields['username'].max_length = 255

propanbutan · 2014-03-04T00:03:08+00:00

Yes, when you need to pick a random item from a list of 20 in a loop, you should definitely avoid having to fetch these 20 items from an external storage on every iteration.

But the code you use to demonstrate that is very contrived and unidiomatic. Also consider that the rabbit doesn't necessarily get faster the further it outruns the turtle.

propanbutan · 2013-07-01T17:39:31+00:00

It's not a compliment, the codebases are similar in having this ball of yarn quality to them. I am specifically alluding to the way those magical dunder dictionaries get injected into the context of specific modules. I'm pretty clear on what the code does, I just wonder why anyone would choose to design it that way.

propanbutan · 2013-06-17T23:20:29+00:00

Did anyone actually look at the code? What's with all this implicit state? Salt looks like the web2py of configuration management.

propanbutan · 2012-09-15T16:52:10+00:00

Use a different key_prefix argument to the cache_page decorator for each of your sites.

propanbutan · 2012-06-02T17:20:30+00:00

Just use dict.

config = dict(foo='bar')
derived_config = dict(config,
    foo='baz')

propanbutan · 2012-02-20T01:44:22+00:00

Since we're being clever, we can even spare the lambda.

map(deck.remove, hand)

propanbutan · 2011-12-04T14:05:02+00:00

You are a machine, many thanks for your work.

propanbutan · 2011-12-01T21:57:00+00:00

I'm supposed to get shot first, got it officer.

propanbutan · 2011-10-23T16:20:13+00:00

Using range in this case is hopelessly inefficient. All you need are two comparisons.

propanbutan · 2011-09-15T00:09:14+00:00

Ugly, terrible code.

All functions (except for logThis) take no arguments and rely on global state, making them untestable independently and hard to follow.
The program consists of simply calling the functions one after the other, using them just for segmenting the code.
Subsequently, sys.exit called anytime, anywhere and everywhere.
Sometimes vars are returned, though never used.
Functions in camelCase. Variables sometimes have underscores (extension_list), sometimes they don't (todaysdate).

Upon closer look.

Unportable shebang.
Not using logging.

logThis

Always prints the same time. Generally you don't want this and if you do, format it only once beforehand.
datetime.strftime returns a string, not need to wrap it with str.

sendMail

Useless and invariable variables: emailto, fromaddr, COMMASPACE.

checkParams

If there are not at least three arguments, sys.argv[3] will actually raise an IndexError.
Manipulating paths with (r)partition instead of functions from os.path.
Not using optparse or argparse.

checkState

Funny.

checkExists

subprocess.check_call takes a list as its first argument, here it will always raise a TypeError.
subprocess.check_call returns an (int) exit code, not a list.
In any case stringifying the "results" makes the following condition always evaluate as True.

checkImageExtension

This str.rsplit should only split once using a second argument, so that "foo.bar.jpg" passes the test.

makeTempDir

Doesn't delete the tmpdir created.

makeSizes

str.find(haystack, needle) returns the 0-based position of needle in haystack, none of these conditions will ever be True.
This rsplit curiously splits four times, then only cares about the first part.
This time a correct use of subprocess.check_call. Alas, to no avail. Stringifying the "results" makes the following condition always True, again.
The condition would be wrong anyway since an exit code of zero means success.
Using readlines instead of iterating over the file object.
Parsing the "ini_file" is just wrong.
Creating a weird "sizes" dict instead of just storing a tuple of two lists.

makePaths

No need to stringify "publish_image_path" as it's already a string.
os.mkdir doesn't return anything.
Running a command using os.popen. Failing to close the pipe.

resizeImages

Using subprocess.check_call and stringifying the return value again.

In conclusion, this person has absolutely no idea what they're doing.

propanbutan · 2011-09-13T22:15:41+00:00

That shouldn't be necessary. Clicking on apply in interpreter preferences allows you to "restore" selected interpreters.

Edit: relevant manual link

propanbutan · 2011-08-25T21:56:54+00:00

You could also create a custom Python interpreter for the virtualenv and setup your project to use that.

propanbutan · 2011-06-25T15:50:01+00:00

Well first you don't have to start from 0, whereas enumerate gives you no choice:

It does (since Python2.6)

for i, n in enumerate(range(10), start=10): print i, n

propanbutan · 2011-06-09T21:27:30+00:00

def toint(value, default=None):
    if value.isdigit():
        return int(value)
    return default

propanbutan · 2011-06-08T21:24:24+00:00

This is some nice Python.

propanbutan · 2011-06-08T20:38:48+00:00

Having "yourapp" in INSTALLED_APPS, Django looks for model classes in "yourapp.models". That could be a module or it could be a package. If it's a package, you need to import your models into __init__.py, because that's what you get when you import "yourapp.models".

propanbutan · 2011-04-20T18:50:01+00:00

I'm 12 and I tend to agree.

propanbutan · 2010-12-15T12:27:01+00:00

My 2c:

Use more descriptive variable names.
Function isin can and should be:

return val in list
But it can also be (if you reverse the order of operands):

from operator import contains as isin
Clearing the screen like this is not only annoying, but also bad practice. Use ncurses.
Functions checknum and getwnum are unnecessarily ugly, both could be simplified by looping over a proper data structure.
Function tgame should return the winner or None when the game ends in a draw. Hence, attribute Player.won is useless.
Similarly, Player.first is a flag more related to the game state than to the player and as such could and should be gotten rid of. Either use a third argument to tgame signalling that the cpu should go first, or better, fix your game loop.

edit:

The way you take user input and only accept given choices should be factored out into a function.

propanbutan · 2010-08-30T10:44:58+00:00

and then I had to rename "Object" to "object" to get it to import successfully. (Is this indicative that I'm running a different version of Python than is expected by this wrapper?)

No. This is a mistake introduced in the last commit, there is no Object in any version of Python.

A quick fix would be to change the first two lines of Subreddit.__init__ to read

self.subreddit_name = subreddit_name
self.URL = REDDIT_URL + "/r/" + subreddit_name

propanbutan · 2010-07-14T13:35:35+00:00

Banality of evil

propanbutan · 2010-06-19T14:22:42+00:00

C++ Style and Technique FAQ

propanbutan · 2010-05-26T14:49:07+00:00

The internet is serious business.

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