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What is the difference between shallow copy, deepcopy and normal assignment operation?
... @grc But I have tried an example(I remove the new line here.) list_=[[1,2],[3,4]] newlist = list_.copy() list_[0]=[7,8] print(list_) print(newlist) The newlist still display [[1, 2], [3, 4]]. But list_[0] is a list which is mutable.
– Alston
Nov 12 '16...
How to upgrade all Python packages with pip?
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rbprbp
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Is it possible to run a single test in MiniTest?
...b -l 25
Yup! Use Nick Quaranto's "m" gem. With it you can say:
m spec/my_spec.rb:25
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How much faster is Redis than mongoDB?
...is()
mongo = Connection().test
collection = mongo['test']
collection.ensure_index('key', unique=True)
def mongo_set(data):
for k, v in data.iteritems():
collection.insert({'key': k, 'value': v})
def mongo_get(data):
for k in data.iterkeys():
val = collection.find_one({'key'...
Is there a way to use shell_exec without waiting for the command to complete?
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answered Jun 19 '09 at 20:32
Brent BaisleyBrent Baisley
69044 silver badges44 bronze badges
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理解和配置 Linux 下的 OOM Killer - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...0
httpd cpuset=/ mems_allowed=0
Pid: 8911, comm: httpd Not tainted 2.6.32-279.1.1.el6.i686 #1
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21556 total pagecache pages
21049 pages in swap cache
Swap cache stats: add 12819103, delete 12798054, find 3188096/4634617
Free swap = 0kB
Total swap = 524280kB
131071 pages RAM
0 ...
indexOf method in an object array?
...marks.
– Uniphonic
Jun 27 '17 at 22:32
Good to know, if performance is important for the task at hand. It very rarely ...
Numpy: Get random set of rows from 2D array
...h replacement.
– Sarah
Jul 22 at 21:32
@Sarah Replacement is not an issue with this sampling method because a True/Fal...
How to define static property in TypeScript interface
I just want to declare a static property in typescript interface? I have not found anywhere regarding this.
13 Answers
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How do I 'overwrite', rather than 'merge', a branch on another branch in Git?
...389f8f2a3e560b639d82597a7bc5489a4c96d44
5b09d34a37a183723b409d25268c8cb4d073206e
OP indeed asked for "I no longer need the old changes in […] branch" and "So I just want to dump all the contents of [A] into [B]", which is not possible to do with a strategy option. Using the 'ours' merge strategy ...