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PATH issue with pytest 'ImportError: No module named YadaYadaYada'
...s:
Add the path manually to the test files, something like this:
import sys, os
myPath = os.path.dirname(os.path.abspath(__file__))
sys.path.insert(0, myPath + '/../')
Run the tests with the env var PYTHONPATH=../.
shar...
How to make the division of 2 ints produce a float instead of another int?
...and n and d have opposite signs.
This is why 1/2 does not give a float.
Converting just either one to float as in (float)1/2 suffices because 15.17. Multiplicative Operators says:
Binary numeric promotion is performed on the operands
and 5.6.2. Binary Numeric Promotion says:
If eithe...
Get type of all variables
... #a function is function
class(charToRaw("hi")) #convert string to raw: raw
class(array("hi")) #array of items is: array
#So far so good, but those who wish to keep their sanity go no further
class(5 + 5L) #double + intege...
How to identify whether a file is normal file or directory
...standard library, which provides an object oriented approach to handle filesystem paths. The relavant methods would be .is_file() and .is_dir():
In [1]: from pathlib import Path
In [2]: p = Path('/usr')
In [3]: p.is_file()
Out[3]: False
In [4]: p.is_dir()
Out[4]: True
In [5]: q = p / 'bin' / 'v...
How to get C# Enum description from value? [duplicate]
... A better approach could be to use extension method instead. To do this, convert Enumerations.GetEnumDescription 's Enum value parameter to this Enum value and then call it like string description = ((MyEnum)value).GetEnumDescription()
– gkc
Nov 25 '14 at 14:...
Compiler Ambiguous invocation error - anonymous method and method group with Func or Action
...relationship between methods and delegate types, but this is a question of convertibility of method groups and delegate types, which is different.
Now that we've got that out of the way, we can walk through section 6.6 of the spec and see what we get.
To do overload resolution we need to first det...
记一次MongoDB性能问题 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...t launching mongod like this to avoid performance problems: numactl –interleave=all mongod [other options]
当时我并不太清楚NUMA是什么东西，所以没有处理，只是把问题反馈给了运维人员，后来知道运维人员也没有理会这茬儿，所以问题的序幕就...
Converting JSONarray to ArrayList
I am downloading a JSON string and converting it to JSONArray. Im putting it into a listview and need to be able to delete from that listview later, and since JSONArray has no .remove method (Thanks Obama), I am trying to convert it to an arraylist.
...
Why is a combiner needed for reduce method that converts type in java 8
...esults in the compilation error you got - argument mismatch; int cannot be converted to java.lang.String. Actually, I think passing 0 as the identity value is also wrong here, since a String is expected (T).
Also note that this version of reduce processes a stream of Ts and returns a T, so you can'...
Convert Go map to json
I tried to convert my Go map to a json string with encoding/json Marshal, but it resulted in a empty string.
3 Answers
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