大约有 16,000 项符合查询结果（耗时：0.0288秒） [XML]
How can I pretty-print JSON in a shell script?
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For debugging objects in Node.js, you should really use sys.inspect() instead of JSON.stringify(). Here's why: markhansen.co.nz/inspecting-with-json-stringify
– Gurpartap Singh
Aug 11 '11 at 18:05
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Pandas aggregate count distinct
...2M
%time _=g.agg({"id": lambda x: x.nunique()})
CPU times: user 3min 3s, sys: 2.94 s, total: 3min 6s
Wall time: 3min 20s
%time _=g.agg({"id": pd.Series.nunique})
CPU times: user 3min 2s, sys: 2.44 s, total: 3min 4s
Wall time: 3min 18s
%time _=g.agg({"id": "nunique"})
CPU times: user 14 s, sys: 4...
How to configure Git post commit hook
...re is the code of my working post-receive hook:
#!/usr/bin/python
import sys
from subprocess import call
if __name__ == '__main__':
for line in sys.stdin.xreadlines():
old, new, ref = line.strip().split(' ')
if ref == 'refs/heads/master':
print "===================...
Foreign Key to non-primary key
...alar function checking the presence of the key:
IF EXISTS (SELECT * FROM sys.check_constraints WHERE object_id = OBJECT_ID(N'[dbo].[Check_RM_ApertureIDisValid_T_ZO_REM_AP_Raum_Reinigung]') AND parent_object_id = OBJECT_ID(N'[dbo].[T_ZO_REM_AP_Raum_Reinigung]'))
ALTER TABLE dbo.T_ZO_REM_AP_Raum_Rei...
How to join components of a path when you are constructing a URL in Python
...n the current os. posixpath is the underlying module that is used on posix systems under the namespace os.path:
>>> os.path.join is posixpath.join
True
>>> posixpath.join('/media/', 'js/foo.js')
'/media/js/foo.js'
So you can just import and use posixpath.join instead for urls, w...
How do I get the path of the current executed file in Python?
...odules are built-in to the interpreter, e.g., by py2exe
return hasattr(sys, "frozen")
def module_path():
encoding = sys.getfilesystemencoding()
if we_are_frozen():
return os.path.dirname(unicode(sys.executable, encoding))
return os.path.dirname(unicode(__file__, encoding))
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Java lib or app to convert CSV to XML file? [closed]
... there an existing application or library in Java which will allow me to convert a CSV data file to XML file?
16 An...
Sort a Custom Class List
...}
Only thing you'd have to do when creating the instance of the class to convert your string containing the date into DateTime type, but it can be done easily e.g. by DateTime.Parse(String) method.
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What is the best way to exit a function (which has no return value) in python before the function en
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@TomSawyer to stop a Python program early, do import sys first and then sys.exit() if you want to exit but report success or sys.exit("some error message to print to stderr").
– Boris
Mar 4 at 17:07
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What does !! mean in ruby?
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Not not. It's used to convert a value to a boolean:
!!nil #=> false
!!"abc" #=> true
!!false #=> false
It's usually not necessary to use though since the only false values to Ruby are nil and false, so it's usually best to let that c...