大约有 17,000 项符合查询结果（耗时：0.0298秒） [XML]
Can I redirect the stdout in python into some sort of string buffer?
...ngIO import StringIO # Python3 use: from io import StringIO
import sys
old_stdout = sys.stdout
sys.stdout = mystdout = StringIO()
# blah blah lots of code ...
sys.stdout = old_stdout
# examine mystdout.getvalue()
share
...
__init__ for unittest.TestCase
...
Try this:
class TestingClass(unittest.TestCase):
def __init__(self, *args, **kwargs):
super(TestingClass, self).__init__(*args, **kwargs)
self.gen_stubs()
You are overriding the TestCase's __init__, so you might want to let the base class handle the arguments ...
How do I find the location of Python module sources?
...
For a pure python module you can find the source by looking at themodule.__file__.
The datetime module, however, is written in C, and therefore datetime.__file__ points to a .so file (there is no datetime.__file__ on Windows), and therefore, you can't see the source.
If you download a python sour...
How do I create a constant in Python?
...f you are in a class, the equivalent would be:
class Foo(object):
CONST_NAME = "Name"
if not, it is just
CONST_NAME = "Name"
But you might want to have a look at the code snippet Constants in Python by Alex Martelli.
As of Python 3.8, there's a typing.Final variable annotation that will tell ...
How to document class attributes in Python? [closed]
...speed exceeding that of an unladen swallow.
Attributes:
flight_speed The maximum speed that such a bird can attain.
nesting_grounds The locale where these birds congregate to reproduce.
"""
flight_speed = 691
nesting_grounds = "Throatwarbler Man Grove"
I think...
How to apply a function to two columns of Pandas dataframe
Suppose I have a df which has columns of 'ID', 'col_1', 'col_2' . And I define a function :
12 Answers
...
No ConcurrentList in .Net 4.0?
...T>, IDisposable
{
#region Fields
private readonly List<T> _list;
private readonly ReaderWriterLockSlim _lock;
#endregion
#region Constructors
public ConcurrentList()
{
this._lock = new ReaderWriterLockSlim(LockRecursionPolicy.NoRecursion);
this._...
static files with express.js
...instead
server.configure(function(){
server.use('/media', express.static(__dirname + '/media'));
server.use(express.static(__dirname + '/public'));
});
server.listen(3000);
The trick is leaving this line as last fallback
server.use(express.static(__dirname + '/public'));
As for documenta...
Python dictionary: Get list of values for list of keys
...n list-comp:
Build list and throw exception if key not found: map(mydict.__getitem__, mykeys)
Build list with None if key not found: map(mydict.get, mykeys)
Alternatively, using operator.itemgetter can return a tuple:
from operator import itemgetter
myvalues = itemgetter(*mykeys)(mydict)
# use ...
Pass variables to Ruby script via command line
...
opts.on('-n', '--sourcename NAME', 'Source name') { |v| options[:source_name] = v }
opts.on('-h', '--sourcehost HOST', 'Source host') { |v| options[:source_host] = v }
opts.on('-p', '--sourceport PORT', 'Source port') { |v| options[:source_port] = v }
end.parse!
dest_options = YAML.load_fi...