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How can I selectively escape percent (%) in Python strings?

...plotlib.pyplot as plt fig,ax = plt.subplots(4,1) float_number = 4.17 ax[0].set_title('Total: (%1.2f' %float_number + '\%)') ax[1].set_title('Total: (%1.2f%%)' %float_number) ax[2].set_title('Total: (%1.2f' %float_number + '%%)') ax[3].set_title('Total: (%1.2f' %float_number + '%)') Title examples ...
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Can someone explain in simple terms to me what a directed acyclic graph is?

...execution time, you can calculate the maximum execution time of the entire set among many other things. Outside the realm of application programming, any decent automated build tool (make, ant, scons, etc.) will use DAGs to ensure proper build order of the components of a program. ...
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What's a concise way to check that environment variables are set in a Unix shell script?

...shell scripts where I need to check that certain environment variables are set before I start doing stuff, so I do this sort of thing: ...
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What is the difference between CMD and ENTRYPOINT in a Dockerfile?

... Not at all. ENTRYPOINT sets a metadata that can (but can be overridden) at runtime, so if you don't change anything, after starting your container, the result will be the same, however, RUN will be exectuted at build time and no matter what you do ...
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Lock, mutex, semaphore… what's the difference?

...called? -- [Varies massively] Does your lock/semaphore use a "queue" or a "set" to remember the threads waiting? Can your lock/semaphore be shared with threads of other processes? Is your lock "reentrant"? -- [Usually yes]. Is your lock "blocking/non-blocking"? -- [Normally non-blocking are used a...
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How can I specify a branch/tag when adding a Git submodule?

... Consider a tag a human readable alias to a commit. And a commit is a set of specific state for each file. A branch is essentially the same thing except you can make changes to it. – deadbabykitten Feb 2 '16 at 0:13 ...
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Iteration over std::vector: unsigned vs signed index variable

... As of writing this, when you compile this with g++, you normally need to set it to work with the new standard by giving an extra flag: g++ -std=c++0x -o auto auto.cpp Now you can run the example: $ ./auto 17 12 23 42 Please note that the instructions on compiling and running are specific to ...
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Remove files from Git commit

...anges done to them. This can be done like Paritosh Singh suggested: git reset --soft HEAD^ or git reset --soft HEAD~1 Then reset the unwanted files in order to leave them out from the commit: git reset HEAD path/to/unwanted_file Now commit again, you can even re-use the same commit message...
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How to count TRUE values in a logical vector

... can handle NA's in logical vector. For instance: # create dummy variable set.seed(100) x <- round(runif(100, 0, 1)) x <- x == 1 # create NA's x[seq(1, length(x), 7)] <- NA If you type in sum(x) you'll get NA as a result, but if you pass na.rm = TRUE in sum function, you'll get the resul...
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Sending email in .NET through Gmail

... The above answer doesn't work. You have to set DeliveryMethod = SmtpDeliveryMethod.Network or it will come back with a "client was not authenticated" error. Also it's always a good idea to put a timeout. Revised code: using System.Net.Mail; using System.Net; var fr...