Django. Override save for model
Before saving model I’m re-size a picture. But how can I check if new picture added or just description updated, so I can skip rescaling every time the model is saved?
python
How to work with a specific version of ChromeDriver while Chrome Browser gets updated automatically through Python selenium
I’m new comer of Selenium, and I can use selenium with Chromedriver to do basic auto-test now, the code works fine, but the problem is Chrome browser always update automatically at the backend, and code always fail to run after Chrome update. I know I need to download new chromedriver to solve this issue, but I wonder if there’s any way to solve this issue without disabling chromebrowser update? tks.
Compare two DataFrames and output their differences side-by-side
I am trying to highlight exactly what changed between two dataframes.
Parsing date/time string with timezone abbreviated name in Python?
I’m trying to parse timestamp strings like "Sat, 11/01/09 8:00PM EST" in Python, but I’m having trouble finding a solution that will handle the abbreviated timezone.
Python functions call by reference
In some languages you can pass a parameter by reference or value by using a special reserved word like ref or val. When you pass a parameter to a Python function it never alters the value of the parameter on leaving the function.The only way to do this is by using the global reserved word (or as i understand it currently).
How to postpone/defer the evaluation of f-strings?
I am using template strings to generate some files and I love the conciseness of the new f-strings for this purpose, for reducing my previous template code from something like this:
How to draw vertical lines on a given plot in matplotlib
Given a plot of signal in time representation, how to draw lines marking corresponding time index?
Python and regular expression with Unicode
I need to delete some Unicode symbols from the string ‘بِسْمِ اللَّهِ الرَّحْمَٰنِ الرَّحِيمِ’
Pygame already installed; however, python terminal says “No module named ‘pygame’ ” (Ubuntu 20.04.1)
I’m using Ubuntu 20.04.1 LTS. I have installed pygame with sudo apt-get install python-pygame. However, when I run my code using VS code, the python terminal gives the output below:
Rename multiple files in a directory in Python
I’m trying to rename some files in a directory using Python. Say I have a file called CHEESE_CHEESE_TYPE.*** and want to remove CHEESE_ so my resulting filename would be CHEESE_TYPE I’m trying to use the os.path.split but it’s not working properly. I have also considered using string manipulations, but have not been successful with that … Read more