seulcoding

1. add attrs in widgetnumber = forms.CharField(widget=forms.TextInput(attrs={'autocomplete': 'off', 'type': 'number'})) 2. use __init__class YourModelForm(forms.ModelForm): def __init__(self, *args, **kwargs): super(YourModelForm, self).__init__(*args, **kwargs) self.fields['number'].widget.attrs.update({ 'autocomplete': 'off', 'type': 'number', }) 3. use Metaclass YourModelForm(ModelForm): clas..

$ psql postgres=# \l List of databases Name | Owner | Encoding | Collate | Ctype | Access privileges --------------+-------------+----------+---------+-------------+----------------------------- template0 | seulchankim | UTF8 | C | ko_KR.UTF-8 | =c/seulchankim + | | | | | seulchankim=CTc/seulchankim template1 | seulchankim | UTF8 | C | ko_KR.UTF-8 | =c/seulchankim + | | | | | seulchankim=CTc/seu..

Install pyenvusing brewbrew install pyenv # using your own profile # use ~/.bashrc or ~/.bash_profile # ~/.zshrc when using zsh echo 'export PYENV_ROOT="$HOME/.pyenv"' >> ~/.bash_profile echo 'export PATH="$PYENV_ROOT/bin:$PATH"' >> ~/.bash_profile echo 'eval "$(pyenv init -)"' >> ~/.bash_profile source ~/.bash_profile Install virtualenvusing brewbrew install pyenv-virtualenv echo 'eval "$(pyenv..

I usally use chrome for developing browser.But it’s bit slow and heavy. So I try to use firefox and very satisfied.And I found out there’s firefox developer edition.You can download hereIt supports great console and debugger. Also, it’s faster than chrome while debugging.If you want to find out new browser for developing, try firefox dev edition.

vimdiff is equivalent to vim -d.It’s easiest way to start editing diff mode with vim.Basic usagevimdiff file1 file2 # equals to vim -d file1 file2 Cheat sheet# remove leftover spacing issue :diffupdate # next / previous difference ]c : [c : # diff obtain do # diff put dp # open/close folded txt zo zc # avoid whitespace comparision :set diffopt+=iwhite vimdiff documentation

git merge -Xours

usling list comprehension & lambda# list comprehension flat_list = [item for sublist in l for item in sublist] # labmda flatten = lambda l: [item for sublist in l for item in sublist] using itertools.chain()import itertools flat_list = list(itertools.chain.from_iterable(l)) using sumsuper easy but not inefficient wayflat_list = sum(l, []) using reducefrom functools import reduce flat_list = redu..

Recently I made chat function with django channels 2.0It’s bit easy to create function in local, but I encountered obstacle while deploy it to production server.I have to use asgi for deploy socket. For that, I use daphne instead of gunicorn or uwsgi.Install redis in ubuntuFirst, just redis. It’s not a hard work.sudo apt-get install redis-server # then start server redis-server start # can acces..

백엔드 개발자로 프론트엔드를 공부하려니 생각보다 좋은 자료를 찾는 일이 쉽지 않았다.그러던 중 html5, css3부터 javascript, ECMAScript6, Node.js까지를 잘 정리해 놓은 사이트를 발견하여 공유한다.poiemaweb깔끔한 ui와 군더더기 없는 설명, 쉽게 설명하는 예제까지 기초부터 설명이 되어 있지만 생각보다 심화된 내용도 설명되어있다. 무엇보다도 한글로 쓰여져 있어 웬만한 발번역을 보는것보다 훨씬 유익하다. 웹을 공부한다면 누구나 Javascript 정도까지는 보는것을 추천poiemaweb에 나와있는 설명들HTML5CSS3BootstrapSassJavaScriptECMAScript6jQuerySnippetNode.jsExpressMongoDBTypeScriptAngularT..

Sass watch basic usage파일단위 watchsass --watch scss/file.scss:scss/file.css 디렉토리 단위 watchsass --watch src/sass:src/css