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How to assign the output of a command to a Makefile variable
I need to execute some make rules conditionally, only if the Python installed is greater than a certain version (say 2.5).
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What does “The APR based Apache Tomcat Native library was not found” mean?
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If you really want it, download the tcnative-1.dll (or libtcnative.so for Linux) and put it in the bin folder, and add a system property to the launch configuration of the tomcat server in eclipse.
-Djava.library.path=c:\dev\tomcat\bin
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Saving interactive Matplotlib figures
...ckle
pickle.dump(fig, open('FigureObject.fig.pickle', 'wb')) # This is for Python 3 - py2 may need `file` instead of `open`
Later, open the figure and the tweaks should be saved and GUI interactivity should be present:
import pickle
figx = pickle.load(open('FigureObject.fig.pickle', 'rb'))
figx....
Change column type from string to float in Pandas
...ul).
infer_objects() - a utility method to convert object columns holding Python objects to a pandas type if possible.
convert_dtypes() - convert DataFrame columns to the "best possible" dtype that supports pd.NA (pandas' object to indicate a missing value).
Read on for more detailed explanatio...
Easily measure elapsed time
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Windows only: (The Linux tag was added after I posted this answer)
You can use GetTickCount() to get the number of milliseconds that have elapsed since the system was started.
long int before = GetTickCount();
// Perform time-consuming opera...
Android Debug Bridge (adb) device - no permissions [duplicate]
...e a problem connecting HTC Wildfire A3333 in debugging mode with my Fedora Linux 17. Adb says:
20 Answers
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Programmatically find the number of cores on a machine
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GetSystemInfo(&sysinfo);
int numCPU = sysinfo.dwNumberOfProcessors;
Linux, Solaris, AIX and Mac OS X >=10.4 (i.e. Tiger onwards)
int numCPU = sysconf(_SC_NPROCESSORS_ONLN);
FreeBSD, MacOS X, NetBSD, OpenBSD, etc.
int mib[4];
int numCPU;
std::size_t len = sizeof(numCPU);
/* set the mib...
How do I get bash completion to work with aliases?
... Is it possible?
Yes, it is possible with the complete-alias project (on Linux). Support for Mac is experimental but users have reported success.
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How do I access the command history from IDLE?
...dentally, why don't you try a better (less ugly, for starters) shell like bpython or ipython?
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nosetests is capturing the output of my print statements. How to circumvent this?
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python3.5 -m "nose" --nocapture
– Alex Punnen
Mar 19 '18 at 9:24
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