Hi is this scenario possible?
In My Server-PC i got this library of movie files,
then
In one of my Client-PC's, They Access or Copy a movie file from the Server-PC BUT stores it only on the RAM/Memory?
If This is possible How can i Read/Open/Play it?
Im trying to make a program (In Python 2.6 with QT) for students in our schools that plays the video, but dont leave a file on their PC's since those Video Material is licensed by the owner. and doesn't want other
school to use it, since's its only made for the school itself.
please im open to any kind of help.
You will get an abundant Audio/Video Resources out in this link. The Particular thing that you wan't to achieve is called Audio/Video Streaming. There are few libraries that provide this functionality one of which is Flumotion. If you have not worked or do not know what Media Streaming is, just fiddle with VLC which provided the same functionality as you are desiring. This will give you an idea what you intend to develop.
Related
I am currently in the position where one of my home devices sends the data of each day in form of a .csv file via email.
Thereby I can tell the device to whatever email (also multiple) it should send this file at the end of the day.
The email only contains this one file attached to it.
So, this is what I am working with.
I now would like to create my own statistics of the data using python, where I could add the data every day and calculate, plot etc.
The question is, how can I automatically download a file which is sent to me via email? I simply have no idea where to start. I was thinking about setting up an raspberry pi with some sort of email adress, but as you can tell I simply have no idea...
It would be great if someone would have a suggestion, or also maybe a link or documentation on stuff like this where I can teach it myself.
Thank you very much
Here is a link to medium article that has instructions how to download attachments that came with the email
The program could read the csv file with Pandas library. You can do all sorts of data manipulation and also some plotting with pandas. But If you want to have really good plots you could use matplotlib and seaborn
All this you could run in cloud maybe? I have zero experience with running projects in cloud so I can't really tell, but I've heard that you can do this. Maybe you could use AWS to do this?
That's how I would do it.
Googling any of the keywords such as pandas or AWS gives you tons and tons of tutorials.
I have a parent file type that is folderish, and I would like to include a thumbnail of the first page of a child pdf in the template. Can someone roughly outline the tools and process you can imagine would achieve this, so that I can investigate further?
Getting out the first page of pdf can be achieved by using ghostscript.
This is an example script which forms an gostscript command and stores the images. I took this from collective.pdfpeek. Which by the way could solve your problem right away :-)
Until few days ago I would have recommended you not to use it, since it was a little bit buggy, but they recently shipped a new version, so give it a try! I'm not sure whether they now support DX or not.
So the workflow for you should be.
Uploading a PDF
Subscribe modified/creation events.
create image of first page using ghostscript (check my command, or collective.pdfpeek)
store it as blob (NamedBlobImage) on your uploaded pdf.
Also implement some queueing like collective.pdfpeek to not block all your threads with ghostscript commands.
OR
Give collective.pdfpeek a shot!
BTW:
imho on a large scale the preview generation for pdfs needs to be implemented as a service, which stores/manages the images for you.
I am new to programming and to Python itself. I have no programming experience. I have managed to read up on Python and done some fairly basic Python tutorial, now I am ready for my first project in Python.
I am basing my project around XBMC, I want to develop some addons for this awesome media center.
I have a few websites that I want to scrape and display in XBMC. One is a music website and one is a payed TV website which is only available to people with accounts with them. I have managed to scrape a website with feedparse but I have no idea how to output these titles and links to play in XBMC.
My question here is: where do I start, how do I construct the script for these websites, what tools/libraries/modules do I need. And what do I need to do to include it into XBMC.
On the general topic that has been asked a ton of times regarding webpage scraping, the common answer is always Mechanize/Beautiful Soup for python. That would allow you to actually get your data.
Once you have your data, its then just a matter of formatting it the way you want, for your xbmc app: http://wiki.xbmc.org/index.php?title=HOW-TO:Write_Python_Scripts_for_XBMC
Its a two step process.
Get your data from a source and format it into some common structure
Use the common structure to populate your elements in the xbmc script
What you actually want to do with your script will determine how you would use your data. If its just simply providing information, then that link above would pretty much explain it.
I want to make a Python script available as a service on the net. The script, which is my first 'proper' Python program, takes a txt file as argument and writes an image into the work directory. So:
How difficult is it for somebody who is new to Python and web development?
How much work is it?
Do I need a framework (Django, cherryPy, web2py)?
Are there good tutorials?
How do I avoid the server to be compromised?
What are my next steps?
==> What is the easiest way?
In the end it is enough, if it is a white page, with some text, and a button, which when clicked, opens a file dialog. After the txt is processed, the server should just return the image, which was written on the hard drive. Already I have access to a server which has Ubuntu installed through a friend.
[update]
Thanks for all your answers. After reading them I want to stress again, that I want to have it as minimal as possible. Srikar's suggestion sounds like the easiest one:
Put it in executable directory of your OS (commonly known as CGI
path). Provide a simple HTML form & upon form submission hit this
script which executes & returns back the image you want to display.
Any objections or comments? Do you know any tutorials for that?
[udpate2]
I found this SO answer: File Sharing Site in Python Is this a sensible approach?
It's not too difficult. Actually, it sounds like a good first project.
That too subjective to answer. An hour to days.
No, you don't need one, but I'd use one if I were you. They abstract away some of the stuff you really don't care about, and you'll learn a tool you can use again in the future.
Plenty. If you want a real rundown of how Python works for the web, read the HOWTO from Python.org. If you just want to learn how to do this one project, pick a framework and do their tutorial.
This question is so broad and complex that I'm not going to try to answer it. Search this site, or Google, for questions like that.
Your next step should be to pick a framework; I've used Django successfully. Just download it, follow the installation instructions, and work your way through their tutorial; it should tell you everything you need to know to do what you want. If you still have questions once you've learned how to do the basics, come back and ask again!
Edit: The answer to that other question will certainly work for you. There, they just receive a GET request and respond with data from a Python file. You need to receive a GET request, respond with an HTML page (easy enough), then respond to a POST request that includes an uploaded file (slightly more complicated) and run your python routine on the uploaded file and then respond with the created image (or a link to it).
Take a look at this page which includes a simple Python script to do file uploads. You should easily be able to modify it to do what you want.
How difficult is it for somebody who is new to Python and web development?
Depends on your level of knowledge.
How much work is it?
Depends on which method you choose to solve the problem.
Do I need a framework (Django, cherryPy, web2py)?
Not necessarily - you could get started by using the CGI (http://docs.python.org/library/cgi.html)
Are there good tutorials?
Yes, there are plenty. The Python docs are an excellent place to start.
How do I avoid the server to be compromised?
Again, depends on the method you choose to solve the problem, although there are commonalities.
What are my next steps?
Dare I say it again, choose a method, read the docs, have a play!
If its just as simple as you have described it. Then you might not even need Django. You could simply use CGI scripting. All of these design decisions, depend on whether
You need (or foresee) a SQL storage?
or a Content-Management-System?
Will you need multiple-user support?
Do you need tight security?
Do you need different privileges for different users?
Do you need an Admin to manage your site?
If the answer to above questions is atleast 60% correct, then you might consider Django. otherwise, just write a python script. Put it in executable directory of your OS (commonly known as CGI path). Provide a simple HTML form & upon form submission hit this script which executes & returns back the image you want to display. So, it all depends on the features you need...
In the end, I created what I needed with Flask.
They have a well documented pattern / tutorial on Uploading Files. The tutorial is understandable even for people with little python and web expericence.
To get a first working version it took me 2h and the resulting code was only 50 lines. This includes, starting the webserver, having a html file/form with file upload and serving a file back to the user.
I'm doing some crawling with Python, and would like to be able to identify (however imperfectly) the flash I come across - is it a video, an ad, a game, or whatever.
I assume I would have to decompile the swf, which seems doable. But what sort of processing would I do with the decompiled Actionscript to figure out what it's purpose is?
Edit: or any better ideas would be most welcome also.
I think your best bet would be to check the context where you see the swf file
usually they're embedded within web pages so if that page has 100 occurences of the word "game", then it might be a game, as an example
To detect an ad it might be trickier but i think that checking the domainname where the swf is hosted might do the trick, also html tags around the swf will be of great use
It might help to look at the arguments passed to the Flash movie. If there's reference to an FLV file then there's a good chance the SWF is being used to play a movie.
The path to the SWF might help too. If it's under, say an /ads directory then it's probably just a banner ad. Or if it's under /games then it's probably a game.
Other than using heuristics like this there's probably not much you can do. SWFs can be used for a lot of different things, and there's really nothing in the SWF itself that would tell you what "type" it is.
Tough one. I guess you should try find a scope for a swf context.
As you said, swfs can be: ads,games, video players, they can also contain experimental art.
who knows. Once you know what exactly your after, it should be easier to figure out how to look for that kind of data.
I think it would be easier to get started with commercial websites. Those need promotion, so if they might promotional ria's setup with a little bit of SEO in mind so look for things like swfobject, swfaddress and tracking stuff ( omniture and who knows what else ). They should have keywords in the embedding html.
Google and Yahoo are working with Adobe as far as I know to make SWFs indexable. There is something mentioned about a custom FlashPlayer used for Flash indexing in the Flash Internals presentation from Adobe MAX.
Hope it helps.