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What does -> mean in Python function definitions?
...butes to validate called values:
def validate(func, locals):
for var, test in func.__annotations__.items():
value = locals[var]
try:
pr=test.__name__+': '+test.__docstring__
except AttributeError:
pr=test.__name__
msg = '{}=={}; Test: ...
Find an element in a list of tuples
...e is 2: you can convert your list into a single dictionary.
For example,
test = [("hi", 1), ("there", 2)]
test = dict(test)
print test["hi"] # prints 1
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How to run Rake tasks from within Rake tasks?
...r output goes into different directories.
Say your project just compiles a test.c file to out/debug/test.out and out/release/test.out with gcc you could setup your project like this:
WAYS = ['debug', 'release']
FLAGS = {}
FLAGS['debug'] = '-g'
FLAGS['release'] = '-O'
def out_dir(way)
File.join('o...
What's the best way to convert a number to a string in JavaScript? [closed]
...pears for raw speed there is an advantage for .toString()
See Performance tests here (not by me, but found when I went to write my own):
http://jsben.ch/#/ghQYR
Fastest based on the JSPerf test above: str = num.toString();
It should be noted that the difference in speed is not overly significant ...
Clear text from textarea with selenium
I've got some tests where I'm checking that the proper error message appears when text in certain fields are invalid. One check for validity is that a certain textarea element is not empty.
...
Subscript and Superscript a String in Android
...script from string.xml file try this:
string resource:
<string name="test_string">X&lt;sup&gt;3&lt;/sup&gt;</string>
if you want the superscript to be smaller:
<string name="test_string">X&lt;sup&gt;&lt;small&gt;3&lt;/small&gt;&lt;/...
Pro JavaScript programmer interview questions (with answers) [closed]
.... You should then proceed to asking them about non-JS specific stuff like testing, workflows, version control, etc. to find out if they're a good programmer.
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Reference requirements.txt for the install_requires kwarg in setuptools setup.py file
...t doesn't refer any external requirements by URL) with the following hack (tested with pip 9.0.1):
install_reqs = parse_requirements('requirements.txt', session='hack')
This doesn't filter environment markers though.
In old versions of pip, more specifically older than 6.0, there is a public A...
Can Selenium Webdriver open browser windows silently in background?
I have a selenium test suite that runs many tests and on each new test it opens a browser window on top of any other windows I have open. Very jarring while working in a local environment. Any way to tell selenium or the OS (MAC) to open the windows in the background?
...
“#include” a text file in a C program as a char[]
...o the new raw string literals:
In C++ do this:
const char *s =
#include "test.txt"
;
In the text file do this:
R"(Line 1
Line 2
Line 3
Line 4
Line 5
Line 6)"
So there must only be a prefix at the top of the file and a suffix at the end of it. Between it you can do what you want, no special es...