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How to change the author and committer name and e-mail of multiple commits in Git?
I was writing a simple script in the school computer, and committing the changes to Git (in a repo that was in my pendrive, cloned from my computer at home). After several commits I realized I was committing stuff as the root user.
...
TransactionManagementError “You can't execute queries until the end of the 'atomic' block” while usi
...nsaction.TransactionManagementError exception.
Like caio mentioned in the comments, the solution is to capture your exception with transaction.atomic like:
from django.db import transaction
def test_constraint(self):
try:
# Duplicates should be prevented.
with transaction.atomi...
How to spread django unit tests over multiple files?
...
http://docs.python.org/library/unittest.html#organizing-tests talks about splitting the files into modules, and the section right above it has an example.
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How do I set/unset a cookie with jQuery?
...anipulation, so don't use the original answer below.
Go to https://github.com/js-cookie/js-cookie instead, and use the library there that doesn't depend on jQuery.
Basic examples:
// Set a cookie
Cookies.set('name', 'value');
// Read the cookie
Cookies.get('name') => // => 'value'
See th...
Best way to generate random file names in Python
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Python has facilities to generate temporary file names, see http://docs.python.org/library/tempfile.html. For instance:
In [4]: import tempfile
Each call to tempfile.NamedTemporaryFile() results in a different temp file, and its name can be accessed with the .name attribute, e.g.:
...
jQuery get value of select onChange
...() {
alert( this.value );
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<select>
<option value="1">One</option>
<option value="2">Two</option>
</select>
You can also reference wit...
How to show a GUI message box from a bash script in linux?
...enity, there seem to be many others. A mixed up but interesting list is at http://alternativeto.net/software/zenity/
First, an example of zenity featuring text formatting markup, window title, button label.
zenity \
--info \
--text="<span size=\"xx-large\">Time is $(date +%Hh%M).</span>...
How can I measure the similarity between two images? [closed]
...hose frame differences.
Look at this open source image search application http://www.semanticmetadata.net/lire/. It describes several image similarity algorighms, three of which are from the MPEG-7 standard: ScalableColor, ColorLayout, EdgeHistogram and Auto Color Correlogram.
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PyLint, PyChecker or PyFlakes? [closed]
...ons in PEP 8.
It is now super easy to check your code against pep8.
See http://pypi.python.org/pypi/pep8
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How to automatically reload a page after a given period of inactivity
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This can be accomplished without javascript, with this metatag:
<meta http-equiv="refresh" content="5" >
where content ="5" are the seconds that the page will wait until refreshed.
But you said only if there was no activity, what kind for activity would that be?
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