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Validate card numbers using regex python

I have some credit card numbers with me and want to validate them over the below rules. ► It must only consist of digits (0-9) ► It may have digits in groups of 4, separated by one hyphen “-” ► It must NOT have 4 or more consecutive repeated digits ► It may contain exactly digits without any space…

Django: Gmail SMTP error: please run connect() first

I am trying to send mail when a certain query is executed. But I am getting error in the connection. I have tried the following settings in my settings.py file I have executed the following command to send the email: But whenever I run the above code I get ‘please run connect() first’ error. What …

How can I use matplotlib.pyplot in a docker container?

I have a certain setting of Python in an docker image named deep. I used to run python code For information, -v and -w options are to link a local file in the current path to the container. However, I can’t use matplotlib.pyplot. Let’s say test.py is I got this error. With solution search, I am ha…

Seconds until end of day in python

There’s another question here that asks how many seconds since midnight – this question is the opposite. How do I get the seconds until the end of the day, from the current time, using python? Answer The cleanest way I found to accomplish this is Taken from http://wontonst.blogspot.com/2017/08/tim…