Let me provide a little background.
An organization i am volunteering for delivers meals to people who are unable to come pick them up during the holidays.
They currently have a SQL Server DB that stores the information of all their clients along with the meal information for each year.
Currently a Java desktop application connects to the SQL Server DB and allows several functions to happen.
i.e. Add a client, add meals, remove clients, print delivery sheets.
I am hoping to use python Flask to rewrite the application as a web based application. The one function i am interested in at the moment is the print delivery sheets function.
The way this works is there is a setting for the current year. When you click the print deliveries for year button it will batch print a document for each customer onto an 8.5" x 11.5" paper. The sheet will be split in two with the same exact information on each side. This information includes the customer name, address, number of meals and so forth.
What i am wondering is how/what would be the best way to setup this template so that i could batch print it using python. I was thinking of creating an html template for the page but i am not sure how that would work.
Again i need to pass in every customer within that year into the template and batch print to 8.5" by 11.5" sheet.
What i am asking is.....
How could i create a template for the print that i can pass every customer two.
How would i print that template for every customer in a batch manner for every customer.
I was hoping to do this all in python if possible.
Thank you for your time and help.
If you are already deploying this as a web app, it will probably be easier to design and generate a pdf. You can use an html to pdf converter, which there are several of on PyPI, or there are plenty of resources online, such as:
How to convert webpage into PDF by using Python
https://www.smallsurething.com/how-to-generate-pdf-reports-with-jinja2-and-pyqt/
Once you have found a way to generate PDFs, you can then just use them like any other PDF, and either have the user download them or print them from the browser (this may require a little bit of Javascript, but this shouldn't be that hard since it should pretty much just be a window.open call.
For instance, you can add a button
<button onclick="getPDF()">Download PDF</button>
Which will then call a function called getPDF() which you define, which finds a way to generate the pdf.
function getPDF() {
// Find the uri for the pdf by some method
var urlToPdf = getUrlToPdf();
// Open PDF in new window
window.open(urlToPdf, "_blank");
}
Note Since you are using Flask, you can include the URL for the pdf in the source for the page, even the Javascript using the {{ }} syntax. Then the pdfs are only generated when someone requests that route.
This way you will not have to worry about connecting to a printer yourself at all, just use the browser to handle those kinds of tasks.
Related
I have a website with nothing on it and I am trying to create a python program that someone can launch, and create a temporary page on my website, so for example my website is example.com and it would create website.com/aw34ed with a random url extension, and if someone were to enter the temporary webpage it would send data to the python program where ever that person is running it. I would also like the temporary website extension/page to delete itself and not exist after a certain amount of time.
I understand this question is kind of vague so am I kind of wondering what I would use to do this and how difficult this would be to create
You could use Flask variables (as this answer states: https://stackoverflow.com/a/63839730/15447633).
#app.route('/temp/<id>')
def show_temp_page(id):
# some method for getting the temporary page, perhaps a db lookup
So I had a number of amino acid sequence strings that I wanted to use as input into a tool that studies its interactions with certain components of the human immune system (http://www.cbs.dtu.dk/services/NetMHCcons/).
I wanted to ask what, if any, would be a way of accessing, inputting data and getting the output, via a script (R or python preferably). My main issue was I had a lot of sequences that need to be queried separately so wanted to automate the whole thing. The website has one field that reads "Submission" which takes in the string input. There is another field "select species/loci" which gives a drop down menu from which an option needs to be selected. Lastly there's a "submit" button. The output simply loads on the page after hitting submit.
I've tentatively poked around with RSelenium and Rcurl but wanted to ask if there was a more efficient method.
I took a look at what it'd take to send a POST request to this service from Python, and it looks possible:
this form takes in "multipart/form-data" (see: How to send a "multipart/form-data" with requests in python?), you'll need to send your data in this format. You could inspect a request from the browser (using the dev tools) and copy the fields from there as a starting point.
once the form is submitted, it doesn't give you the result right away. You'd need to get your job ID from the response, and then poll the URL: http://www.cbs.dtu.dk/cgi-bin/webface2.fcgi?jobid={your_job_id}&wait=20 until it gives you the result
the result will then need to be downloaded and parsed
This tool is however available as a portable version for linux/mac: https://services.healthtech.dtu.dk/software.php
Perhaps downloading this version would make it easier?
Try this :
Submitting to a web form using python
This link is an answer to how to send web forms in python, using urllib. Check your source code and extract the necessary data using re module from the source code of the link you have put up, and send the request.
save the HTML source code of http://www.cbs.dtu.dk/services/NetMHCcons/ in the python file as
source_code = '''...'''
The HTML can be found by using CTRL+U in firefox.
I have a Python script that accepts text from a user, interprets that text and then produces a text response for that user. I want to create a simple web interface to this Python script that is accessible to multiple people at once. By this I mean that person A can go to the website for the script and begin interacting with the script and, at the same time, person B can do the same. This would mean that the script is running in as many processes/sessions as desired.
What would be a good way to approach this?
Maybe you should try a python web framework like django or flask .etc
Make a simple website that offers a webpage that contians a form to input text ,and when people visit the url, put their text in the form and submit, your code can handle it and return a webpage to show the result.
I have a webpage showing some data. I have a python script that continuously updates the data(fetches the data from database, and writes it to the html page).It takes about 5 minutes for the script to fetch the data. I have the html page set to refresh every 60 seconds using the meta tag. However, I want to change this and have the page refresh as soon as the python script updates it, so basically I need to add some code to my python script that refreshes the html page as soon as it's done writing to it.
Is this possible ?
Without diving into complex modern things like WebSockets, there's no way for the server to 'push' a notice to a web browser. What you can do, however, it make the client check for updates in a way that is not visible to the user.
It will involve writing Javascript & writing an extra file. When writing your main webpage, add, inside Javascript, a timestamp (Unix timestamp will be easiest here). You also write that same timestamp to a file on the web server (let's call it updatetime.txt). Using an AJAX request on the page, you pull in updatetime.txt & see if the number in the file is bigger than the number stored when you generate the document, refresh the page if you see an updated time. You can alter how 'instantly' the changes get noticed but controlling how quickly you poll.
I won't go into too much detail on writing the code but I'd probably just use $.ajax() from JQuery (even though it's sort of overkill for one function) to make the calls. The trick to putting something on a time in JS is setinterval. You should be able to find plenty of documentation on using both of them already written.
Can I have any highlight kind of things using Python 2.7? Say when my script clicking on the submit button,feeding data into the text field or selecting values from the drop-down field, just to highlight on that element to make sure to the script runner that his/her script doing what he/she wants.
EDIT
I am using selenium-webdriver with python to automate some web based work on a third party application.
Thanks
This is something you need to do with javascript, not python.
[NOTE: I'm leaving this answer for historical purposes but readers should note that the original question has changed from concerning itself with Python to concerning itself with Selenium]
Assuming you're talking about a browser based application being served from a Python back-end server (and it's just a guess since there's no information in your post):
If you are constructing a response in your Python back-end, wrap the stuff that you want to highlight in a <span> tag and set a class on the span tag. Then, in your CSS define that class with whatever highlighting properties you want to use.
However, if you want to accomplish this highlighting in an already-loaded browser page without generating new HTML on the back end and returning that to the browser, then Python (on the server) has no knowledge of or ability to affect the web page in browser. You must accomplish this using Javascript or a Javascript library or framework in the browser.