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Python setup.py develop vs install
Two options in setup.py develop and install are confusing me. According to this site , using develop creates a special link to site-packages directory.
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...丝脱落司机：开启免打扰模式，然后各种宅。
@猪脚L:穷到家里待了一个星期
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@-魏宇a:连一块钱坐公交都舍不得。
@我是阿...
How to convert Nonetype to int or string?
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In Python 3 you can use the "or" keyword too. This way:
foo = bar or 0
foo2 = bar or ""
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How to return dictionary keys as a list in Python?
...le for quite some time, even in Python 2. In function calls you can do def foo(*args): print(args) followed by foo(*{1:0, 2:0}) with the result (1, 2) being printed. This behavior is specified in the Calls section of the reference manual. Python 3.5 with PEP 448 just loosened the restrictions on whe...
How to measure elapsed time in Python?
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Given a function you'd like to time,
test.py:
def foo():
# print "hello"
return "hello"
the easiest way to use timeit is to call it from the command line:
% python -mtimeit -s'import test' 'test.foo()'
1000000 loops, best of 3: 0.254 usec per loop
Do not try...
On showing dialog i get “Can not perform this action after onSaveInstanceState”
... DialogFragment dialogFragment = (DialogFragment) fm.findFragmentByTag("foo");
if (dialogFragment != null)
{
dialogFragment.dismiss();
}
dialogFragment = GenericPromptSingleButtonDialogFragment.newInstance("title", "message", "button");
dialogF...
How to pass objects to functions in C++?
... that said function may change it. Example: With references, the call is foo(bar); whether the reference is const or not, with a pointer it is foo(&bar); and is more apparent that foo is being passed a mutable object.
– RC.
Jan 26 '10 at 12:43
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What does it mean if a Python object is “subscriptable” or not?
...d, the following are the only built-ins that are subscriptable:
string: "foobar"[3] == "b"
tuple: (1,2,3,4)[3] == 4
list: [1,2,3,4][3] == 4
dict: {"a":1, "b":2, "c":3}["c"] == 3
But mipadi's answer is correct - any class that implements __getitem__ is subscriptable
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Organizing a multiple-file Go project [closed]
...k like this:
~/projects/
bin/
pkg/
src/
mypack/
foo.go
bar.go
mypack_test.go
export GOPATH=$HOME/projects
$ go build mypack
$ go test mypack
Update: as of >= Go 1.11, the Module system is now a standard part of the tooling and the GOPATH concept is ...
Regular expression for matching HH:MM time format
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