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Check if two unordered lists are equal [duplicate]
...of (hashable) things, called a set. If you convert both lists to sets, the comparison will be unordered.
set(x) == set(y)
Documentation on set
EDIT: @mdwhatcott points out that you want to check for duplicates. set ignores these, so you need a similar data structure that also keeps track of th...
Find out time it took for a python script to complete execution
...test function"
L = []
for i in range(100):
L.append(i)
if __name__=='__main__':
from timeit import Timer
t = Timer("test()", "from __main__ import test")
print t.timeit()
Then to convert to minutes, you can simply divide by 60. If you want the script runtime in an easi...
Different bash prompt for different vi editing mode?
... to have a prompt that depends on the mode you are currently in (insert or command). How does one find out this editing mode?
...
How to log source file name and line number in Python
...='%Y-%m-%d:%H:%M:%S',
level=logging.DEBUG)
logger = logging.getLogger(__name__)
logger.debug("This is a debug log")
logger.info("This is an info log")
logger.critical("This is critical")
logger.error("An error occurred")
Generates this output:
2017-06-06:17:07:02,158 DEBUG [log.py:11] Thi...
Rename Files and Directories (Add Prefix)
...ll work for filenames with spaces in them:
for f in * ; do mv -- "$f" "PRE_$f" ; done
("--" is needed to succeed with files that begin with dashes, whose names would otherwise be interpreted as switches for the mv command)
...
Constantly print Subprocess output while process is running
...
You can use iter to process lines as soon as the command outputs them: lines = iter(fd.readline, ""). Here's a full example showing a typical use case (thanks to @jfs for helping out):
from __future__ import print_function # Only Python 2.x
import subprocess
def execute(c...
How do I check CPU and Memory Usage in Java?
...ter of a second.
0.2300771 secs (in the first line)
For more info see: http://java.sun.com/docs/hotspot/gc5.0/gc_tuning_5.html
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Get the (last part of) current directory name in C#
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Is the practice of returning a C++ reference variable evil?
...rn 0;
}
If the lifetime should be left up to the caller, and you're just computing the value.
Summary: it's okay to return a reference if the lifetime of the object won't end after the call.
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How to compare arrays in JavaScript?
I'd like to compare two arrays... ideally, efficiently. Nothing fancy, just true if they are identical, and false if not. Not surprisingly, the comparison operator doesn't seem to work.
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