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Python debugging tips [closed]
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PDB
You can use the pdb module, insert pdb.set_trace() anywhere and it will function as a breakpoint.
>>> import pdb
>>> a="a string"
>>> pdb.set_trace()
--Return--
> <stdin>(1)<module>()->None
(Pdb) p a
'a string'
(Pdb)
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`new function()` with lower case “f” in JavaScript
...tance.get_inner = function () {
return inner;
};
instance.set_inner = function (s) {
inner = s;
};
return instance;
})();
The purpose of the new operator is to create new object instances, setting up the [[Prototype]] internal property, you can see how this is mad...
Best way to encode text data for XML in Java?
Very similar to this question , except for Java.
21 Answers
21
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What's the best practice to round a float to 2 decimals? [duplicate]
...was working with statistics in Java 2 years ago and I still got the codes of a function that allows you to round a number to the number of decimals that you want. Now you need two, but maybe you would like to try with 3 to compare results, and this function gives you this freedom.
/**
* Round to ...
Concept behind these four lines of tricky C code
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The number 7709179928849219.0 has the following binary representation as a 64-bit double:
01000011 00111011 01100011 01110101 01010011 00101011 00101011 01000011
+^^^^^^^ ^^^^---- -------- -------- -------- -------- -------- --------
+ shows the position of th...
Add padding on view programmatically
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view.setPadding(0,padding,0,0);
This will set the top padding to padding-pixels.
If you want to set it in dp instead, you can do a conversion:
float scale = getResources().getDisplayMetrics().density;
int dpAsPixels = (int) (s...
I need to securely store a username and password in Python, what are my options?
...vice is just a namespace for your app
service_id = 'IM_YOUR_APP!'
keyring.set_password(service_id, 'dustin', 'my secret password')
password = keyring.get_password(service_id, 'dustin') # retrieve password
Usage if you want to store the username on the keyring:
import keyring
MAGIC_USERNAME_KEY ...
When should you use 'friend' in C++?
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friend class Mother;
public:
string name( void );
protected:
void setName( string newName );
};
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IE9 border-radius and background gradient bleeding
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I found that setting background-size: 100% 103%; background-position:center; is better. 100% for both values adds some strange border at the top and bottom.
– Morten Christiansen
Jun 10 '11 at 11:46
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Convert list of dictionaries to a pandas DataFrame
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@CatsLoveJazz You can just do df = df.set_index('time') afterwards
– joris
Jun 28 '16 at 13:38
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