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How can I remove non-ASCII characters but leave periods and spaces using Python?
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You can filter all characters from the string that are not printable using string.printable, like this:
>>> s = "some\x00string. with\x15 funny characters"
>>> import string
>>> printable = set(strin...
MongoDB and “joins” [duplicate]
I'm sure MongoDB doesn't officially support "joins". What does this mean?
11 Answers
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Unioning two tables with different number of columns
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Add extra columns as null for the table having less columns like
Select Col1, Col2, Col3, Col4, Col5 from Table1
Union
Select Col1, Col2, Col3, Null as Col4, Null as Col5 from Table2
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Mockito matcher and array of primitives
With Mockito, I want to verify() a method call with byte[] in its argument list, but I didn't find how to write this.
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Git fails when pushing commit to github
I cloned a git repo that I have hosted on github to my laptop. I was able to successfully push a couple of commits to github without problem. However, now I get the following error:
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What is the best (idiomatic) way to check the type of a Python variable? [duplicate]
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What happens if somebody passes a unicode string to your function? Or a class derived from dict? Or a class implementing a dict-like interface? Following code covers first two cases. If you are using Python 2.6 you might want to use collections.Mapping instea...
Go Error Handling Techniques [closed]
I'm just getting started with Go. My code is starting to have a lot of this:
11 Answers
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Why are we not to throw these exceptions?
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Exception is the base type for all exceptions, and as such terribly unspecific. You shouldn’t ever throw this exception because it simply does not contain any useful information. Calling code catching for exceptions couldn’t disambiguate the intentionally thrown exception (fr...
Constantly print Subprocess output while process is running
To launch programs from my Python-scripts, I'm using the following method:
13 Answers
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LINGO使用指南 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...制程序如下：
model:
!6发点8收点运输问题;
sets:
warehouses/wh1..wh6/: capacity;
vendors/v1..v8/: demand;
links(warehouses,vendors): cost, volume;
endsets
!目标函数;
min=@sum(links: cost*volume);
!需求约束;
@for(vendors(J):
@sum(warehouses(I): volume(I,J...