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How to run code when a class is subclassed? [duplicate]
...0(SuperClass):
pass
print("bar")
class SubClass1(SuperClass):
print("test")
prints
foo
was subclassed by SubClass0
bar
test
was subclassed by SubClass1
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Numpy `logical_or` for more than two arguments
..., a))
or whatever permutation you like.
Back to python, if you want to test whether a condition (yielded by a function test that takes a testee and returns a boolean value) applies to a or b or c or any element of list L, you normally use
any(test(x) for x in L)
...
What does the PHP error message “Notice: Use of undefined constant” mean?
...
<?php
${test}="test information";
echo $test;
?>
Notice: Use of undefined constant test - assumed 'test' in D:\xampp\htdocs\sp\test\envoirnmentVariables.php on line 3
test information
...
Is assert evil? [closed]
...oing it on every single invocation of the routine.
You still have to unit-test your production code, but that's a different, and complementary, way of making sure your code is correct. Unit tests make sure your routine lives up to its interface, while assertions are a finer-grained way to make sure...
Making button go full-width?
...
tested with bootstrap V3 and "btn-block" worked for me
– Buddhika Alwis
Mar 10 '17 at 6:04
...
Converting Stream to String and back…what are we missing?
...
I have just tested this and works fine.
string test = "Testing 1-2-3";
// convert string to stream
byte[] byteArray = Encoding.ASCII.GetBytes(test);
MemoryStream stream = new MemoryStream(byteArray);
// convert stream to string
Stream...
Can linux cat command be used for writing text to file?
... output.txt <<EOF
some text
some lines
EOF
For PHP file:
cat > test.php <<PHP
<?php
echo "Test";
echo \$var;
?>
PHP
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Insert space before capital letters
...;
For special cases when 2 consecutive capital letters occur (Eg: ThisIsATest) add additional code below:
s = s.replace(/([A-Z])([A-Z])/g, '$1 $2');
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req.body empty on posts
...
With Postman, to test HTTP post actions with a raw JSON data payload, select the raw option and set the following header parameters:
Content-Type: application/json
Also, be sure to wrap any strings used as keys/values in your JSON payload ...
How do I find if a string starts with another string in Ruby?
...re several methods presented here, I wanted to figure out which one was fastest. Using Ruby 1.9.3p362:
irb(main):001:0> require 'benchmark'
=> true
irb(main):002:0> Benchmark.realtime { 1.upto(10000000) { "foobar"[/\Afoo/] }}
=> 12.477248
irb(main):003:0> Benchmark.realtime { 1.upto(...