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Finding a substring within a list in Python [duplicate]
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All the answers work but they always traverse the whole list. If I understand your question, you only need the first match. So you don't have to consider the rest of the list if you found your first match:
mylist = ['abc123'...
How to print Boolean flag in NSLog?
... @BoltClock 0/1 isn't meaningful in log output? I thought we were all programmers here lol
– Cbas
Apr 3 '16 at 21:04
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Modulo operator with negative values [duplicate]
...Kanze: If b is a power of 2, it used to be possible to compute n % b as n & (b-1). The new standard requires that it be computed as n < 0 ? n | -b : n & (b-1). Likewise, n / b cannot be written as a simple shift, even on hardware that supports arithmetic shifts; instead, on such systems...
How can I plot separate Pandas DataFrames as subplots?
...d indices. When invoking df.plot() , I get separate plot images. what I really want is to have them all in the same plot as subplots, but I'm unfortunately failing to come up with a solution to how and would highly appreciate some help.
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How to generate .NET 4.0 classes from xsd?
...or the case you have several interlinked schema definitions just name them all. xsd schema1.xsd schema2.xsd schema3.xsd /c
– mivra
Oct 24 '16 at 19:40
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How can I negate the return-value of a process?
...September 2015) noticed that the POSIX shell supports a ! operator. For example, it is listed as a reserved word and can appear at the start of a pipeline — where a simple command is a special case of 'pipeline'. It can, therefore, be used in if statements and while or until loops too — in POS...
How to understand nil vs. empty vs. blank in Ruby
...re blank. To determine blankness in this case, use all? with blank?, for example:
[ nil, '' ].blank? == false
[ nil, '' ].all? &:blank? == true
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Python threading.timer - repeat function every 'n' seconds
... not self.stopped.wait(0.5):
print("my thread")
# call a function
In the code that started the timer, you can then set the stopped event to stop the timer.
stopFlag = Event()
thread = MyThread(stopFlag)
thread.start()
# this will stop the timer
stopFlag.set()
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Calculate difference in keys contained in two Python dictionaries
...s:
diff = set(dictb.keys()) - set(dicta.keys())
Here is a class to find all the possibilities: what was added, what was removed, which key-value pairs are the same, and which key-value pairs are changed.
class DictDiffer(object):
"""
Calculate the difference between two dictionaries as:
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Read user input inside a loop
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-1, as this will circumvent any other redirect. For example, bash yourscript < /foo/bar will wait for user input, this is acceptable only when reading passwords. The answer by @GordonDavisson is preferable for all other uses.
– tiwo
Feb ...