大约有 6,261 项符合查询结果（耗时：0.0210秒） [XML]
How to make a class JSON serializable
... expected output? For example, will this do?
>>> f = FileItem("/foo/bar")
>>> magic(f)
'{"fname": "/foo/bar"}'
In that case you can merely call json.dumps(f.__dict__).
If you want more customized output then you will have to subclass JSONEncoder and implement your own custom ...
How do I get list of methods in a Python class?
...3.x answer without external libraries
method_list = [func for func in dir(Foo) if callable(getattr(Foo, func))]
dunder-excluded result:
method_list = [func for func in dir(Foo) if callable(getattr(Foo, func)) and not func.startswith("__")]
...
Why is null an object and what's the difference between null and undefined?
...gt; var noValueYet;
> console.log(noValueYet);
undefined
> function foo(x) { console.log(x) }
> foo()
undefined
> var obj = {};
> console.log(obj.unknownProperty)
undefined
Accessing unknown variables, however, produces an exception:
> unknownVariable
ReferenceError: unknownVa...
How do I determine the size of an object in Python?
... casually (I should unittest it):
>>> getsize(['a', tuple('bcd'), Foo()])
344
>>> getsize(Foo())
16
>>> getsize(tuple('bcd'))
194
>>> getsize(['a', tuple('bcd'), Foo(), {'foo': 'bar', 'baz': 'bar'}])
752
>>> getsize({'foo': 'bar', 'baz': 'bar'})
400
>&...
How to get instance variables in Python?
...
Use vars()
class Foo(object):
def __init__(self):
self.a = 1
self.b = 2
vars(Foo()) #==> {'a': 1, 'b': 2}
vars(Foo()).keys() #==> ['a', 'b']
...
How to extract URL parameters from a URL with Ruby or Rails?
...te the inverse, at least not in Ruby 1.8.7 / Rails 2.3. A query string of foo[]=1&foo[]=2 is correctly parsed as { "foo" =>["1","2"] }, but build_query turns that into "foo=1&foo=2", which when parsed again yields { "foo"=>"2"}.
– Raels
Jul 20 '1...
How to run a command before a Bash script exits?
...e of using trap:
#!/bin/bash -e
function cleanup {
echo "Removing /tmp/foo"
rm -r /tmp/foo
}
trap cleanup EXIT
mkdir /tmp/foo
asdffdsa #Fails
Output:
dbrown@luxury:~ $ sh traptest
t: line 9: asdffdsa: command not found
Removing /tmp/foo
dbrown@luxury:~ $
Notice that even though the asdf...
How to send a “multipart/form-data” with requests in python?
...gt;>> response = requests.post('http://httpbin.org/post', files=dict(foo='bar'))
>>> response.status_code
200
and httpbin.org lets you know what headers you posted with; in response.json() we have:
>>> from pprint import pprint
>>> pprint(response.json()['headers'...
How to 'git pull' into a branch that is not the current one?
...pdate, and pull Git branches without using checkouts
# Merge local branch foo into local branch master,
# without having to checkout master first.
# Here `.` means to use the local repository as the "remote":
git fetch . foo:master
# Merge remote branch origin/foo into local branch foo,
# without ...
jQuery posting JSON
...er what happens when your data contains, for instance, a list of things: { foo: [1,2,3], bar: 'baz' }. This will get form-encoded as foo%5B%5D=1&foo%5B%5D=2&foo%5B%5D=3&bar=baz (unescaped, it's foo[]=1&foo[]=2&foo[]=3&bar=baz). Likely not what you want server-side.
...