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How can you make a custom keyboard in Android?
I want to make a custom keyboard. I don't know how to do it using XML and Java. The following picture is a model of the keyboard I want to make. It only needs numbers.
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How do I filter ForeignKey choices in a Django ModelForm?
...yset attribute. Depends on how your form is built. If you build an explicit form, you'll have fields named directly.
form.rate.queryset = Rate.objects.filter(company_id=the_company.id)
If you take the default ModelForm object, form.fields["rate"].queryset = ...
This is done explicitly in the ...
Asking the user for input until they give a valid response
I am writing a program that accepts an input from the user.
21 Answers
21
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__attribute__ - C/C++ - 清泛网 - 专注C/C++及内核技术
...该属性可以避免出现错误信息。C库函数中的abort（）和exit（）的声明格式就采用了这种格式，如下所示：
extern void exit(int) __attribute__((noreturn));extern void abort(void) __attribute__((noreturn)); 为了方便理解，大家可以参考如下的例...
Length of generator output [duplicate]
Python provides a nice method for getting length of an eager iterable, len(x) that is. But I couldn't find anything similar for lazy iterables represented by generator comprehensions and functions. Of course, it is not hard to write something like:
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oracle10g 网址收藏 - ORACLE - 清泛IT论坛，有思想、有深度
...TN了：
Oracle Database 10g Release 2 (10.2.0.1.0) Enterprise/Standard Edition for Microsoft Windows (32-bit)
http://download.oracle.com/otn/nt/oracle10g/10201/10201_database_win32.zip
http://download.oracle.com/otn/nt/oracle10g/10201/10201_client_win32.zip
http://download.oracle.com/otn/nt/ora...
Dynamically set local variable [duplicate]
...ther answers already posted you cannot modify locals() directly and expect it to work.
>>> def foo():
lcl = locals()
lcl['xyz'] = 42
print(xyz)
>>> foo()
Traceback (most recent call last):
File "<pyshell#6>", line 1, in <module>
foo()
File "<p...
Instance attribute attribute_name defined outside __init__
I split up my class constructor by letting it call multiple functions, like this:
6 Answers
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How can I create a copy of an object in Python?
...follow
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edited Dec 14 '18 at 15:35
answered Jan 25 '11 at 13:49
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What is the advantage of GCC's __builtin_expect in if else statements?
...expect(x, 0)) {
foo();
...
} else {
bar();
...
}
I guess it should be something like:
cmp $x, 0
jne _foo
_bar:
call bar
...
jmp after_if
_foo:
call foo
...
after_if:
You can see that the instructions are arranged in such an order that the bar case precedes ...