大约有 40,000 项符合查询结果（耗时：0.0423秒） [XML]
How to pass arguments to a Button command in Tkinter?
... library functools, like this:
from functools import partial
#(...)
action_with_arg = partial(action, arg)
button = Tk.Button(master=frame, text='press', command=action_with_arg)
share
|
improve t...
SQLAlchemy: print the actual query
...itting DDL. In order to access this functionality one can use the 'literal_binds' flag, passed to compile_kwargs:
from sqlalchemy.sql import table, column, select
t = table('t', column('x'))
s = select([t]).where(t.c.x == 5)
print(s.compile(compile_kwargs={"literal_binds": True}))
the above app...
What is the default text size on Android?
...
Default values in appcompat-v7
<dimen name="abc_text_size_body_1_material">14sp</dimen>
<dimen name="abc_text_size_body_2_material">14sp</dimen>
<dimen name="abc_text_size_button_material">14sp</dimen>
<dimen name="abc_text_size_caption...
Django admin: how to sort by one of the custom list_display fields that has no database field
How could I sort Customers, depending on number_of_orders they have?
3 Answers
3
...
tmux set -g mouse-mode on doesn't work
...ke scrolling with wheels work
bind -n WheelUpPane if-shell -F -t = "#{mouse_any_flag}" "send-keys -M" "if -Ft= '#{pane_in_mode}' 'send-keys -M' 'select-pane -t=; copy-mode -e; send-keys -M'"
bind -n WheelDownPane select-pane -t= \; send-keys -M
This will enable scrolling on hover over a pane and y...
Difference between passing array and array pointer into function in C
... eax, 0Fh
add eax, 0Fh
shr eax, 4
shl eax, 4
mov [ebp+var_C], eax
mov eax, [ebp+var_C]
call sub_401730
call sub_4013D0
mov [ebp+var_8], 2
mov [ebp+var_4], 4
lea eax, [ebp+var_8]
mov [esp+18h+var_18], eax
call sub_401290
call _getch
leave
retn
So th...
What's the algorithm to calculate aspect ratio?
...store.steampowered.com/hwsurvey, section 'Primary Display Resolution'
steam_file = './steam.txt'
# Taken from http://upload.wikimedia.org/wikipedia/commons/thumb/f/f0/Vector_Video_Standards4.svg/750px-Vector_Video_Standards4.svg.png
accepted_ratios = ['5:4', '4:3', '3:2', '8:5', '5:3', '16:9', '17:...
How to add a new method to a php object on the fly?
...
You can harness __call for this:
class Foo
{
public function __call($method, $args)
{
if (isset($this->$method)) {
$func = $this->$method;
return call_user_func_array($func, $args);
}
...
How to sort a list in Scala by two fields?
...ant for longer names (Wild, Wilder, Wilderman).
If you write
rows.sortBy(_.lastName + _.firstName)
with 2 underlines, the method expects two parameters:
<console>:14: error: wrong number of parameters; expected = 1
rows.sortBy (_.lastName + _.firstName)
...
Using Django time/date widgets in custom form
... the proper field names from your model):
from django import forms
from my_app.models import Product
from django.contrib.admin import widgets
class ProductForm(forms.ModelForm):
class Meta:
model = Product
def __init__(self, *args, **kwargs):
...