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How to step through Python code to help debug issues?
...;> import pdb
>>> pdb.run('pdb_script.MyObj(5).go()')
> <string>(1)<module>()
(Pdb)
C. From Within Your Program
For a big project and long-running module, can start the debugging from inside the program using
import pdb and set_trace()
like this :
#!/usr/bin/env pytho...
How do I partially update an object in MongoDB so the new object will overlay / merge with the exist
... } );
}
Note: 'profile' is specific to my implementation, it is just the string of the key that you would like to modify.
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What is float in Java?
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Is there a way to check if a string has only float value ?
– MasterJoe
Mar 10 at 5:01
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Generate colors between red and green for a power meter?
... To directly convert to a hex color code, you might want to leverage String.format("#%06X", 0xFFFFFF & getTrafficlightColor(value));
– ngeek
May 11 '16 at 8:01
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Anaconda vs. EPD Enthought vs. manual installation of Python [closed]
...into errors that look something like undefined symbol: PyUnicodeUCS4_AsUTF8String.
According to PEP 0513, UCS4 seems to currently be more popular and recommended. Also, the whole UCS compatibility issues seem to only affect 2.x and < 3.3 versions.
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Global variables in AngularJS
...o be on a modern browser. Though know your values will all be turned into strings.
Also has the handy benefit of being cached between reloads.
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Rails :include vs. :joins
...ment belongs_to a User.
The User model has the following attributes: Name(string), Age(integer). The Comment model has the following attributes:Content, user_id. For a comment a user_id can be null.
Joins:
:joins performs a inner join between two tables. Thus
Comment.joins(:user)
#=> <A...
What's wrong with Java Date & Time API? [closed]
...e are a similar number of ++ and -- on the months in order to convert to a string.
They're mutable. As a result, any time you want to give a date back (say, as an instance structure) you need to return a clone of that date instead of the date object itself (since otherwise, people can mutate your st...
Difference between EXISTS and IN in SQL?
...turns purely Boolean values, which is always faster than having to compare strings or values larger than a BIT/Boolean type. IN may or may not be a Boolean comparison. Since programming prefers EXPLICIT usage for stability (part of ACID), EXISTS is preferred generally.
– clift...
Running Python code in Vim
... all you'd need to repeat are those two character.
Or you could save the string w !python into one of the registers (like "a for example) and then hit :<C-R>a<CR> to insert the contents of register a into the commandline and run it.
Or you can do what I do and map <leader>z to ...