Problem I am trying to add() elements in a set at run time using a for loop: Surprisingly, l1 is a set but, when I go on add() -ing elements to my set l2 in a loop I get : TypeError: unhashable type: ‘list’ Research Effort: Here are other ways I have tried to add() elements to set l2 and
Tag: python
in Celery/Django : cannot find reference ‘control’ in celery.task.control
I’m trying to use celery in my project. when I use from celery.task.control import revoke the PyCharm highlight control and warn me cannot find reference ‘control’ in __init__.py and also PyCharm adds broken line under revoke and warn me Unresolved reference revoke. But when I run the projec…
How to Extract Month Name and Year from Date column of DataFrame
I have the following DF I want to extract the month name and year in a simple way in the following format: I have used the df.Date.dt.to_period(“M”) which return “2018-01” format. Answer Cast you date from object to actual datetime and use dt to access what you need. Visual Format with…
Install needed libraries for Weasyprint on pipenv (Windows environment)
In order to start generating documents with Weasyprint I installed it on my Windows machine following these instructions: https://weasyprint.readthedocs.io/en/stable/install.html#step-5-run-weasyprint On my computer it works but I have a Django project where I want to integrate this library and I use pipenv. …
OpenCV Drawing Contour Error Assertion Failed
So I am trying to follow guide on how to scan a document in https://www.pyimagesearch.com/2014/09/01/build-kick-ass-mobile-document-scanner-just-5-minutes/ exactly on the step 2 process where i am supposed to find the contour and draw it to the image, i got an “Assertion Failed” error on drawConto…
Seaborn scatter plot from pandas dataframe colours based on third column
I have a pandas dataframe, with columns ‘groupname’, ‘result’, and ‘temperature’. I’ve plotted a Seaborn swarmplot, where x=’groupname’ and y=’result’, which shows the results data separated into the groups. What I also want to do is to colour …
json.dumps on dictionary with bytes for keys
Trying to convert dictionary object with keys of type bytes to json using json.dumps(). Format of dictionary object is not known beforehand. Have found solution for arrays or dictionaries with byte values when using json.dumps (Convert bytes embedded in list (or dict) to str for use with json.dumps) but have …
count multiple value in dataframe
I have a dataframe that shows answers of a multiple choice question of 5 students: And I want to count how many times does a choice been selected. For example, the final answer should be So is there a quick way to get the solution using python? Besides, I am using the data from the dataframe for visualization…
Can’t fix “zipimport.ZipImportError: can’t decompress data; zlib not available” when I type in “python3.6 get-pip.py”
I was trying to install Django. Turns out that course’s teacher said that we will be working with Python 3.6 I install Python 3.6. Now it’s my default, it somewhat replaced the last version I had; which is Python 3.5. Everything ok until that. But when I want to install Django doing “pip3 in…
How to read MKV bytes as video?
I am receiving fragment of MKV video in bytes. I need to take 1st frame of it for later processing without saving video in disk. For similar problem with image I use OpenCV or PIL and everything works fine, however, I am not able to do the same with video data. Any tips how to read video from bytes to