isinstance with string representing types Question: isinstance("my string", "str | int") isinstance("my string", "list") Is there a way to check the type of a variable ("my string" in this case) based on a valid type which is stored as a string? I don’t need to import the type, I know it’s builtin (int / str …
Evaluating a string as a numpy array Question: My team is migrating from Clickhouse to Azure Data Explorer (ADX). We are currently experiencing difficulties to query our data from ADX: the queried values are correct, but the data are read as a string rather than as an array of floats. Here is an example string: …
Allow eval() to evaluate only arithmetic expressions and certain functions Question: I have a calculator that uses the eval() function to evaluate expressions, but I am aware of the fact that using eval() is dangerous as it can be used to run arbitrary code on the machine. So, I want it to only be able …
How can I use the python compile function on an empty string? Question: I have a piece of code that calculates the sum of a number of variables. For example, with 3 variables (A = 1, B = 2, C = 3) it outputs the sum X = 6. The way the code is implemented …
How to I convert a string that contains a list of sets to list without changing the order of the sets? Question: I have a string that contains a list of sets – ‘[{13,18},{14,19}]’ I want it to be like this – [‘[13,18]’,'[14,19]’] When I use ast.literal_eval() the order of the sets gets changed – …
How can I handle missing values in the dictionary when I use the function eval(String dictionary) -> dictionary PYTHON? Question: I need to convert the ‘content’ column from a string dictionary to a dictionary in python. After that I will use the following line of code: df[‘content’].apply(pd.Series). To have the dictionary values as a column …
How to substitute value of variables in Python expression, but not evaluate the expression? Question: I have a Python expression that looks like the following: var1 = ‘GOOGLE’ var2 = ‘5’ expr = ‘df[df[var1]>=var2]’ In my workspace var1 and var2 are well defined so I can evaluate expr as follows: eval(expr) However, I want to …
Using eval() to assess user input and some condition. What alternatives? Question: First, to provide some context, I am designing a console based version of Blackjack for entertainment and learning purposes. The code below was my solution to evaluate different conditions given user input. The function below handles sleep times and user inputs and its …
How to make menu using dict evaluation for small python guessing game Question: menu = { "1": "start_game()" "2": "player_stats()" "3": "high_scores()" "0": "exit_game()" } So let’s say if user inputs 1 in menu screen, I want to call start_game() function, I know there is other way to do this but just interested in this …
strange behaviour of locals() dictionaries when using eval Question: Please consider this code: from sklearn.model_selection import ParameterGrid def conf1(): return {"p1": [1,2], "p2": [4,5,6]} def f(aa, bb, cc): c = locals() print("CONFIG, locals():") for k, v, in c.items(): print(f"{k}: {v}") #> params = eval("conf1()") grid = ParameterGrid(params) #< d = {**c} print("CONF after eval") for …
