I am trying to create a single progress bar that will be updated whenever an async task is done. I have the following code The above code generates a single progress bar as but it is not updated until all tasks are finished (it shows either 0% or 100% while there’s more than a single task) I also tried …
Tag: python
New union shorthand giving “unsupported operand type(s) for |: ‘str’ and ‘type'”
Before 3.10, I was using Union to create union parameter annotations: Now, when I use the new union shorthand syntax: I get the error: TypeError: unsupported operand type(s) for |: ‘str’ and ‘type’ Is this not supported? Answer The fact that it’s being used as a type hint doesn&#…
How to decompose this list comprehension or in other word, how to merge subsets in a list?
I follow some tips but still cannot decompose this list comprehension, what this mean in the middle list? It is mainly for merging some subsets in a list, for example because ‘员工:张三’ is the subset of ‘实习员工:张三’, the reuslt will remove ‘员工:张三’ I know the outer may like, but w…
Using the “in” operator in Python 3.10 Match Case
Is there a “in” operator in python 3.10 Match Case like with if else statements if “n” in message: the in operator doesn’t work in match case This doesn’t work. How to have something like the “in” operator in Match-Case. Answer In match-case we can use the split…
Unexpected tail of the floating point from using arange loop to name the columns
I tried to create some numbers and rename the output columns with the np.arange loop as the following: The conditional number part worked for me. The columns’ names were fine between columns reject0.6-reject0.68. After that, all columns’ names turned to reject with the unexpected numbers, e.g., re…
psycopg2 SyntaxError with time or date
I have a code that automatically identifies for what table, which columns and what the values to parse into sql insert statement. It works well with all of my tables, except only one. This is a structure of the model of this table: I got SyntaxError only with this table. My insertion statement: This is an err…
Using lamda to compare two columns
My dataframe is like this: df = pd.DataFrame({‘A’: [1,2,3], ‘B’: [1,4,5]}) If column A has the same value as column B, output 1, else 0. I want to output like this: I figured out df[‘is_equal’] = np.where((df[‘A’] == df[‘B’]), 1, 0) worked fine. But …
Group by from wide form in Pandas
I have a DataFrame like this one: I want to find out the characteristics of the Disloyal and Not Satisfied customers that are between 30 and 40 years old, grouping them by the service they have rated: I suspect I have to use melt but I can’t figure out how to groupby from there. Answer With the followin…
In Python, why my variable StartingU get updated when I only update the variable AverageU in my for loops? What is wrong with the code?
The purpose is to calculate the average value (AverageU) from a starting array (StartingU) The for loops that calculate the average values for AverageU Output: The problem is why StartingU gets updated? It should be unchanged Answer AverageU changed since this code, not after for loop. AverageU and StartingU …
Python saying file does not exist when importing but clearly does
I am writing a simple pygame name generator for a little project and am trying to import a function I made but it says it does not exist. You can see: that my from and imports are correct. The script that runs is fantasy name generator yet this error (in the screenshot) is produced. Any help would be apprecia…