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Python 3 turn range to a list
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You can just construct a list from the range object:
my_list = list(range(1, 1001))
This is how you do it with generators in python2.x as well. Typically speaking, you probably don't need a list though since you can come by the value of my_list[i] more efficiently (i + 1), a...
How to redirect output with subprocess in Python?
...couraged, albeit still available in Python 3.
Use os.system:
os.system(my_cmd)
If you really want to use subprocess, here's the solution (mostly lifted from the documentation for subprocess):
p = subprocess.Popen(my_cmd, shell=True)
os.waitpid(p.pid, 0)
OTOH, you can avoid system calls enti...
What is more efficient? Using pow to square or just multiply it with itself?
...verload. In C++, it will be the roughly same. (Assuming the methodology in my testing is correct.)
This is in response to the comment made by An Markm:
Even if a using namespace std directive was issued, if the second parameter to pow is an int, then the std::pow(double, int) overload from <c...
How to change language of app when user selects language?
I want my app to support three languages Spanish,Portuguese & English. And give option to select language in app.I have made
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#include in .h or .c / .cpp?
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@BrendanLong I see, although in my sense including several times a same header doesn't matter if you put the correct macros inside to include the content only once. Therefore, I think that putting even less is to reduce probabilities to get an error in the ...
How to delete a file or folder?
...xception handling.
EXAMPLE for os.path.isfile
#!/usr/bin/python
import os
myfile="/tmp/foo.txt"
## If file exists, delete it ##
if os.path.isfile(myfile):
os.remove(myfile)
else: ## Show an error ##
print("Error: %s file not found" % myfile)
###Exception Handling
#!/usr/bin/python
impo...
Equals(=) vs. LIKE
... operators produce obviously different results. Allow me to quote from the MySQL manual:
Per the SQL standard, LIKE performs matching on a per-character basis, thus it can produce results different from the = comparison operator:
mysql> SELECT 'ä' LIKE 'ae' COLLATE latin1_german2_ci;
+----...
What is the performance cost of having a virtual method in a C++ class?
...memory. This is always a significant stall: on Xenon, about 650 cycles (by my tests).
However this isn't a problem specific to virtual functions because even a direct function call will cause a miss if you jump to instructions that aren't in cache. What matters is whether the function has been run...
Recommendation for compressing JPG files with ImageMagick
...ce while maintaining apparent image quality. I put a 0.05 gaussian blur on my image and it saved some space but looked like utter crap. I settled on using mogrify -strip -quality 75% *.jpg. Strip is great. 0 quality loss, and large space savings. And quality at 75% is barely distinguishable from 100...
Add spaces before Capital Letters
...{ ' ', c } : new[] { c }).ToArray());
}
}
This will allow you to use MyCasedString.ToSentence()
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