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AttributeError: 'datetime' module has no attribute 'strptime'
...tatements
import datetime: that's the module (that's what you have right now).
from datetime import datetime: that's the class.
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Detect when browser receives file download
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old thread, i know...
but those, that are lead here by google might be interested in my solution.
it is very simple, yet reliable. and it makes it possible to display real progress messages (and can be easily plugged in to existing process...
Visual Studio 2012 Web Publish doesn't copy files
...a fresh Visual Studio 2012 project. It published over FTP in the past, but now when I try to Publish it does exactly as above - it pretends to, says it was successful, and pushes nothing. It does build the output to the obj dir, but it never actually copies it to the server. The change Configuration...
Python: using a recursive algorithm as a generator
...ontrivial constraints. The problem came with a natural recursive solution. Now it happens that, even for relatively small input, the sequences are several thousands, thus I would prefer to use my algorithm as a generator instead of using it to fill a list with all the sequences.
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AngularJS - Value attribute on an input text box is ignored when there is a ng-model used?
...ectives in a comment on my answer, and I completely missed that until just now. With that input, here's the right way to do this without breaking Angular or HTML conventions:
There's also a way to get both - grab the value of the element and use that to update the model in a directive:
<div ...
How to get Latitude and Longitude of the mobile device in android?
...etSystemService(Context.LOCATION_SERVICE);
Location location = lm.getLastKnownLocation(LocationManager.GPS_PROVIDER);
double longitude = location.getLongitude();
double latitude = location.getLatitude();
The call to getLastKnownLocation() doesn't block - which means it will return null if no posi...
Sorting a vector in descending order
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@Xeo Now they both finish in a second. Thanks!
– zw324
Jan 26 '12 at 21:03
3
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postgresql port confusion 5433 or 5432?
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/etc/services is only advisory, it's a listing of well-known ports. It doesn't mean that anything is actually running on that port or that the named service will run on that port.
In PostgreSQL's case it's typical to use port 5432 if it is available. If it isn't, most installers ...
How to write to an existing excel file without overwriting data (using pandas)?
...s writer.sheets to access the sheet.
## If you leave it empty it will not know that sheet Main is already there
## and will create a new sheet.
writer.sheets = dict((ws.title, ws) for ws in book.worksheets)
data_filtered.to_excel(writer, "Main", cols=['Diff1', 'Diff2'])
writer.save()
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Twitter Bootstrap - how to center elements horizontally or vertically
...e would center just by adding text-center class
Update:
Also, you should know the basics of flexbox and how to use it, since Bootstrap4 now uses it natively.
Here is an excellent, fast-paced video tutorial by Brad Schiff
Here is a great cheat sheet
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