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Sum a list of numbers in Python
...gt; a = range(10)
>>> sum(a)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
TypeError: 'int' object is not callable
>>> del sum
>>> sum(a)
45
It seems that sum has been defined in the code somewhere and overwrites the default functio...
Favicon: .ico or .png / correct tags? [duplicate]
... this is a good response, but its hard to create each of this files, realfavicongenerator.net does this for us, i recommend it
– Sr.PEDRO
Nov 10 '17 at 15:01
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Cannot delete or update a parent row: a foreign key constraint fails
...
In my case: I just ran a large SQL file and one of the final statements failed, so I just wanna delete all tables, fix the syntax error, and rerun, making this exactly what I was looking for.
– ekerner
Nov 5 '14 at 17:18
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Call an activity method from a fragment
...ng(String myString);
}
This can be defined in the fragment or a separate file.
Then you would have your activity implement the interface.
public class MyActivity extends FragmentActivity implements MyStringListener{
@Override
public Integer computeSomething(String myString){
/** Do som...
Making HTTP Requests using Chrome Developer tools
...quite easy to make HTTP requests from the devtools console.
To GET a JSON file for instance:
fetch('https://jsonplaceholder.typicode.com/posts/1')
.then(res => res.json())
.then(console.log)
Or to POST a new resource:
fetch('https://jsonplaceholder.typicode.com/posts', {
...
How to change a django QueryDict to Python Dict?
...s isn't the best method. It seems if you want to e.g. write QueryDict to a file for whatever crazy reason, QueryDict.urlencode() is the way to go. To reconstruct the QueryDict you simply do QueryDict(urlencoded_data).
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Keyword not supported: “data source” initializing Entity Framework Context
...t it has single quotes. If you are getting the connection from the .config file, then it is okay to use the &quot; escape sequence.
– Mike Stonis
May 10 '12 at 23:45
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How to reset Django admin password?
...ing Django 1.9
Navigate to your root directory i,e. where you "manage.py" file is located using your console or other application such as Git.
Retrieve the Python shell using the command "python manage.py shell".
Import the User Model by typing the following command
"from django.contrib.auth.mod...
How to disable CSS in Browser for testing purposes
...disclosure triangle. Click on it.
Browse to <domain>→css→<css file you want to eliminate>
Highlight all of the text and hit delete.
Rinse and repeat for each stylesheet you want to disable.
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...
Add string in a certain position in Python
...355879ACB6'
>>> s[4:4] = '-'
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
TypeError: 'str' object does not support item assignment
It is, however, possible to create a new string that has the inserted character:
>>> s[:4] + '-' + s[4:]
'35...