I have an example of QStacked Widget code from internet, which generates its own layout for each child (below) Now I want to collect data from all of them and process it later. How can I know which checkbox was checked, for example? This code layout.addWidget(QCheckBox(“Physics”).stateChanged.conn…
Tag: python
Django percentage field
I’m trying to create a percentage field in Django, where the user just fills in 40 for 40%. There will be a percentage sign on the right of the input box so that they know they should fill in a percentage. 0.4 must be stored in the DB. So far I’ve tried the following: It works, but the problem is,
Python: How to read stdout of subprocess in a nonblocking way
I am trying to make a simple python script that starts a subprocess and monitors its standard output. Here is a snippet from the code: The problem is that the script hangs on output=process.stdout.readline() and that the line print “test” only executes after the subprocess is terminated. Is there …
How to convert CRLF to LF on a Windows machine in Python
So I got those template, they are all ending in LF and I can fill some terms inside with format and still get LF files by opening with “wb”. Those templates are used in a deployment script on a windows machine to deploy on a unix server. Problem is, a lot of people are going to mess with those tem…
Spark-submit: undefined function parse_url
The function – parse_url always works fine if we working with spark-sql throw sql-client (via thrift server), IPython, pyspark-shell, but it doesn’t work throw spark-submit mode: The error is: So, we are using workaround here: Please, any help with this issue? Answer Spark >= 2.0 Same as below,…
how can i write comments on some cells of excel sheet using pandas
I didn’t find anything that enable me to write comments on some specific cell while writing excel sheet using panadas.to_excel . Any help is appreciated. Answer After searching for some time, I think the best way to handle comments or other such properties like color and size of text at cell or sheet le…
Django download a file
I’m quite new to using Django and I am trying to develop a website where the user is able to upload a number of excel files, these files are then stored in a media folder Webproject/project/media. The document is then displayed in a list along with any other document they have uploaded, which you can cl…
Confusion between prepared statement and parameterized query in Python
As far as I understand, prepared statements are (mainly) a database feature that allows you to separate parameters from the code that uses such parameters. Example: A parameterized query substitutes the manual string interpolation, so instead of doing we can do Now, it seems that prepared statements are, for …
run a crontab job using an anaconda env
I want to have a cron job execute a python script using an already existing anaconda python environment called my_env. The only thing I can think to do is have the cron job run a script called my_script.bash which in turn activates the env and then runs the python script. Trying to execute this script from th…
How To Plot Multiple Histograms On Same Plot With Seaborn
With matplotlib, I can make a histogram with two datasets on one plot (one next to the other, not overlay). This yields the following plot. However, when I try to do this with seabron; I get the following error: So then I try to add some color values: And I get the same error. I saw this post on how