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Separation of business logic and data access in django
...your system log, etc.
Such scenario's also really help you in setting up a Test Driven Development environment.
And finally, thinking in commands really helps you create a task-oriented application. Your users will appreciate this :-)
Expressing Commands
Django provides two easy ways of expressing c...
How to write a Python module/package?
...ute the live repository with our experiments, we create an account for the testing repository, and install twine for the upload process:
pip install twine
Now we're almost there, with our account created we simply tell twine to upload our package, it will ask for our credentials and upload our pa...
Why is using 'eval' a bad practice?
...r a legitimate use-case for using eval, one that is found even in CPython: testing.
Here's one example I found in test_unary.py where a test on whether (+|-|~)b'a' raises a TypeError:
def test_bad_types(self):
for op in '+', '-', '~':
self.assertRaises(TypeError, eval, op + "b'a'")
...
Is there a way to instantiate objects from a string holding their class name?
...ual ~Base(){cout <<"Base destructor\n";}
};
#endif /* COMMON_H_ */
test1.h:
/*
* test1.h
*
* Created on: 28-Dec-2015
* Author: ravi.prasad
*/
#ifndef TEST1_H_
#define TEST1_H_
#include "common.h"
class test1: public Base{
int m_a;
int m_b;
public:
test1(int a=0, int...
How to divide flask app into multiple py files?
My flask application currently consists of a single test.py file with multiple routes and the main() route defined. Is there some way I could create a test2.py file that contains routes that were not handled in test.py ?
...
How to create a trie in Python
... a version of get that also updates the dictionary.)
Next, a function to test whether the word is in the trie:
>>> def in_trie(trie, word):
... current_dict = trie
... for letter in word:
... if letter not in current_dict:
... return False
... current_...
Disable migrations when running unit tests in Django 1.7
...
like syncdb did in 1.6. I defined a new settings module just for unit
tests called "settings_test.py", which imports * from the main
settings module and adds this line:
MIGRATION_MODULES = {"myapp": "myapp.migrations_not_used_in_tests"}
Then I run tests like this:
DJANGO_SETTIN...
get and set in TypeScript
... can put in place and not worry about it? In other words, if I regression test one accessor and one setter, can I deem it a success? Or are there cases where it won't work exactly the same as a var and i need to test all 100 places that use this var/prop?
– Adam Plocher
...
Python argparse: How to insert newline in the help text?
... argparse import RawTextHelpFormatter
parser = ArgumentParser(description='test', formatter_class=RawTextHelpFormatter)
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Why use def main()? [duplicate]
... module without nasty side-effects.
This means it will be possible to run tests against that code.
This means we can import that code into an interactive python shell and test/debug/run it.
Variables inside def main are local, while those outside it are global. This may introduce a few bugs and u...