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Convert decimal to binary in python [duplicate]
...ivalent?
I am able to convert binary to decimal using int('[binary_value]',2), so any way to do the reverse without writing the code to do it myself?
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How to show all shared libraries used by executables in Linux?
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274
Use ldd to list shared libraries for each executable.
Cleanup the output
Sort, compute counts...
Gradle store on local file system
...downloaded jar files on the local file system? Maven stores them in the .m2 directory under USER_HOME , but where does Gradle store them? I checked the .gradle folder there, but saw only compiled scripts.
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... 各版本对比 App上架指南 入门必读 IoT专题 AI2拓展 Aia Store 关于 关于我们 发布日志 服务条款 搜索 ...
Index all *except* one item in python
...lement:
a = range(10)[::-1] # [9, 8, 7, 6, 5, 4, 3, 2, 1, 0]
b = [x for i,x in enumerate(a) if i!=3] # [9, 8, 7, 5, 4, 3, 2, 1, 0]
This is very general, and can be used with all iterables, including numpy arrays. If you replace [] with (), b will be an iterator instead of...
echo that outputs to stderr
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You could do this, which facilitates reading:
>&2 echo "error"
>&2 copies file descriptor #2 to file descriptor #1. Therefore, after this redirection is performed, both file descriptors will refer to the same file: the one file descriptor #2 was originally referri...
How to extract numbers from a string and get an array of ints?
...p = Pattern.compile("-?\\d+");
Matcher m = p.matcher("There are more than -2 and less than 12 numbers here");
while (m.find()) {
System.out.println(m.group());
}
... prints -2 and 12.
-? matches a leading negative sign -- optionally. \d matches a digit, and we need to write \ as \\ in a Java ...
What does 'synchronized' mean?
...hout the synchronized keyword, your thread 1 may not see the change thread 2 made to foo, or worse, it may only be half changed. This would not be what you logically expect.
Again, this is a non-trivial topic in Java. To learn more, explore topics here on SO and the Interwebs about:
Concurrenc...
Pairs from single list
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52
My favorite way to do it:
from itertools import izip
def pairwise(t):
it = iter(t)
ret...
Testing whether a value is odd or even
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