大约有 2,327 项符合查询结果（耗时：0.0198秒） [XML]
A non-blocking read on a subprocess.PIPE in Python
...to read a stream without blocking regardless of operating system is to use Queue.get_nowait():
import sys
from subprocess import PIPE, Popen
from threading import Thread
try:
from queue import Queue, Empty
except ImportError:
from Queue import Queue, Empty # python 2.x
ON_POSIX = 'posix...
git pull VS git fetch Vs git rebase
Another question said git pull is like a git fetch + git merge .
2 Answers
2
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SQLAlchemy - Getting a list of tables
... this in the documentation, but how can I get a list of tables created in SQLAlchemy?
9 Answers
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Does SQLAlchemy have an equivalent of Django's get_or_create?
...or_create(session, model, defaults=None, **kwargs):
instance = session.query(model).filter_by(**kwargs).first()
if instance:
return instance, False
else:
params = dict((k, v) for k, v in kwargs.iteritems() if not isinstance(v, ClauseElement))
params.update(default...
Why doesn't println! work in Rust unit tests?
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thanks! unrelated to this question, but that also helped me figure out how to get cargo test [--] --bench to work too!
– Jim Garrison
Aug 9 '14 at 12:37
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What exactly is a C pointer if not a memory address?
...and how to do pointer arithmetic with those numbers and all other things required by the standard.
– Alexey Frunze
Mar 1 '13 at 6:12
4
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Efficiently replace all accented characters in a string?
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What I'm trying to do is make the sorting of the jQuery tablesorter plugin work correctly for table data in German. The plugin can take an user-defined function to extract the string to sort on, which is what I have to do or the resulting sort order will be wrong.
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Matplotlib discrete colorbar
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You can create a custom discrete colorbar quite easily by using a BoundaryNorm as normalizer for your scatter. The quirky bit (in my method) is making 0 showup as grey.
For images i often use the cmap.set_bad() and convert my data to a numpy masked array. That woul...
What is the in a .vimrc file?
... "Repeat latest f, t, F or T in opposite direction [count] times." It is quite convenient.
– Maxim Kim
Nov 20 '09 at 12:34
11
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What is a simple command line program or script to backup SQL server databases?
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To backup a single database from the command line, use osql or sqlcmd.
"C:\Program Files\Microsoft SQL Server\90\Tools\Binn\osql.exe"
-E -Q "BACKUP DATABASE mydatabase TO DISK='C:\tmp\db.bak' WITH FORMAT"
You'll also want to read the documentation on BACKUP and RESTORE and ...