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Check if Python Package is installed

...om PyPI or from any other alternative source (like pip install http://some.site/package-name.zip or any other archive type). When installing manually using python setup.py install. When installing from system repositories, like sudo apt install python-requests. Cases when it might not work: W...
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IISExpress returns a 503 error from remote machines

I'm attempting to test a website I have running in a local IISExpress instance with some other machines / devices on my local network. I am running Win7 Pro. ...
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Android Google Maps v2 - set zoom level for myLocation

...reet level for example (note the "15f" below is street level) : override fun onMapReady(googleMap: GoogleMap?) { googleMap?.mapType = GoogleMap.MAP_TYPE_NORMAL googleMap?.addMarker(MarkerOptions() .position(LatLng(37.4233438, -122.0728817)) .title("cool place") ...
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How to make a SPA SEO crawlable?

... to handle these URLs in case they are used as external links from another site to your site, we'll see that later on the server side part). Now, this is handled wonderfully by Durandal. I strongly recommend it, but you can also skip this part if you prefer other technologies. If you do choose it...
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Number.sign() in javascript

Wonder if there are any nontrivial ways of finding number's sign ( signum function )? May be shorter / faster / more elegant solutions than the obvious one ...
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Do AJAX requests retain PHP Session info?

If I had a user logged onto my site, having his id stored in $_SESSION , and from his browser he clicked a 'Save' button which would make an AJAX request to the server. Will his $_SESSION and cookies be retained in this request, and can I safely rely on the id being present in the $_SESSION ? ...
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Django-Admin: CharField as TextArea

...} class MessageAdmin(admin.ModelAdmin): form = MessageAdminForm admin.site.register(Message, MessageAdmin) So, you don't need to redefine a field in the ModelForm to change it's widget, just set the widgets dict in Meta. ...
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How do you get the length of a string?

... to be computed as following: [..."????"].length or create an auxiliary function function uniLen(s) { return [...s].length } share | improve this answer | follow ...
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Common CSS Media Queries Break Points [duplicate]

I am working on a Responsive Web Site with CSS Media Queries. 13 Answers 13 ...
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How to prevent favicon.ico requests?

... in browser, save it as favicon.ico aka. empty PNG file and store it in website root. Right? – Martin Jun 30 '16 at 15:04 ...