If I try solving the logistics differential equation in Sympy I get a residual value (10^(-13)) which prevents sympy from getting the correct values for the initial coditions. If I run this code: import sympy as sp I get: How can one get rid of these residuals in the solution? Answer Either don’t use Fl…
Check if a value exist in a column and change in another Pandas
I have the following information. Let’s say I have the following list. My dataframe is as follows: df I would like to check if one of the value from the list my_list exist in the column Col1. If it exist, change the value in Value column to Hot in the corresponding row. I would like to see something lik…
How to initialize one parent at a time in multiple inheritance?
Suppose I have the following class inheriting from classes A and B: How do I initialize B only after initializing A? Using super(C,self).__init__() doesn’t let me use attributes of A into B. Answer You don’t HAVE to use super. Now, that does mean some pretty tight coupling, in that C has to be way…
Convert all alpha characters of string to integers in separate columns within a pandas dataframe
I have a single column of strings that contain alpha numeric characters as follows: AA128A AA128B AA128C AA128D AA128E AA129A AA129B AA129C CP100-10 CP100-11 CP100-12 CP100-13 CORSTG11A CORSTG11B CORSTG11C I’m wanting to explode each individual character into separate columns and convert all alpha chara…
Hangman python project
I have been trying to code a hangman game but couldn’t do it because there seems to be an error with my if requests, because he dosn’t detect a valid Letter in the word although there is . please tell me if i can give you any more information. looking forward to hearing from yall and i am really i…
What is the best way to work with whitelisted IP’s on a MySQL DB when using Docker?
I have a server which contains a python file that connects to two external MySQL DB’s. One of those DB’s can be easily reached while the other server requires that IP’s be whitelisted in order to have access to that DB. That server’s IP is already whitelisted and works as intended when…
spacy Entity Ruler pattern isn’t working for ent_type
I am trying to get the entity ruler patterns to use a combination of lemma & ent_type to generate a tag for the phrase “landed (or land) in Baltimore(location)”. It seems to be working with the Matcher, but not the entity ruler I created. I set the override ents to True, so not really sure why…
Constructing Bech32 addresses
I’m trying to follow the steps here https://en.bitcoin.it/wiki/Bech32 to generate a valid bech32 address. I am getting stuck on the first step: Having a compressed public key (0x02 or 0x03 followed by 32 byte X coordinate): 0279be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798 Perform SHA-2…
Return the smallest circle in the from the list of circles
I am working with recursions in python. I have two functions r(coord) that returns the radius of a circle with the center at the given coordinates and inside(coord) that returns the set of centers of all circles directly inside the circle with the given center. I want to calculate the surface of all circles a…
How to select values from one column in function of the values of multiple other columns
Here is the original data: I would like to be able to get the value of Year in function of the values of Name and Wine. It would return all the values in the Year column of the entries that have the corresponding values in the Name and Wine columns. For example: with the key [‘Mark’, ‘Volnay…