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cv2.error (-215:Assertion failed) reader.ptr != NULL in function cvDrawContours

So I’m trying to create a license plate detection program and I have been following a guide for that, (https://github.com/nicknochnack/ANPRwithPython/blob/main/ANPR%20-%20Tutorial.ipynb) however I am currently running into a problem. I have also tried to change “location” to 0 or [0] but to no success. Answer Found the “solution” to this, although it’s not much an Solution. The reason this kept happening

Authorisation Error 400: redirect_uri_mismatch – cannot generate needed token files for the ezsheets module

I need to use the ezsheets module which requires the use of both Google Drive and Google Spreadsheets APIs. I enabled them and have managed to gain the required credentials, which I passed in the python project folder. According to Google Spreadsheets documentation, the next step should be gaining the two required token files ( one for each API )

How deal with the UndefinedUnitError?

I downloaded data from noaa and i wanted to calculate vertical velocity using the function vertical_velocity=metpy.calcmpcalc.vertical_velocity(omega,pressure,temperature). But something wrong when i dealing with the units of varibles. **The units of omega, height and temperature are ‘Pascal/s’, ‘m’ and ‘degC’, repectively. The varible pressure was calculate through the function mpcalc.height_to_pressure_std, and this function didn’t give the unit of pressure. But the

Looping through pages of search result

I am trying to scrape Reuters image captions on certain pictures. I have searched with my parameters and have a search result with 182 pages. The ‘PN=X’ part at the end of the links are the page numbers. I have built a for loop to loop through the pages and scrape all captions: The code runs, but it returns the

f2py: Python does not import module

I would like to import an Fortran module into python with f2py. I successfully compiled the module with the command f2py -c primes.f90 -m primes. This command generates primes.cp39-win_amd64.pyd and an directory: When I am trying to import the module as described here with import primes it imports something but not the module. So e.g I cannot see the docstring

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