nonetype

I'm trying to run the rearrange_name function to rearrange the variable "name" but i keep getting the "NoneType" error Question: import re def rearrange_name(name): result= re.search(r’^([w.]*),([w.]*)$’, name) return ‘{} {}’.format(result[2], result[1]) print(result=rearrange_name(‘Lovely Ada’)) The NoneType error message Asked By: reminiscence || Source Answers: The space separating the groups is not being captured by your regex …

How to test with parametrize that something is None or not None? Question: I have a method that shall return None in some exceptional situations and otherwise something "complicated". In my dummy MWE below (not my real method!) there are two situations (x==0 and x==10) where None is returned. def foo(x: int) -> typing.Optional[float]: if …

Python XML Element AttributeError: 'NoneType' object has no attribute 'text' Question: I am trying to parse the following xml file. <xml version="1"> <nodes> 1 -2.50000000E+01 0.00000000E+00 5.00000000E+00 </nodes> </xml> I want to retrieve the values within the element nodes in that file. I have tried the following code: import pandas as pd import xml.etree.ElementTree as …

Find if any column in pandas dataframe is NULL and state this in new column Question: I have a dataframe, something like this import pandas as pd dic = {‘animal’:["cat", "dog", "rabbit"], ‘colour’: ["yellow", None, "red"], ‘size’:[None, "large", "small"]} df = pd.DataFrame(dic) animal colour size 0 cat yellow None 1 dog None large 2 rabbit …

How to specify a random and None value of a boolean parameter Question: I have some function a which has boolean param b: bool. This parameter can take either a specified value, an empty value, or a random value. def a(b: Optional[bool] = random_bool()) -> None print(b) But if you specify random generation directly in …

Replace x by float(x) if and only if it is not None Question: x is either a string or None (for example a query param from a HTTP request: request.query.get(‘x’)). I’d like to transform it into a float if not None. These 3 solutions work: if x is None: y = None else: y = …

How do I prevent returning None between desired output? Question: I am trying to return the function with arguments and the functions results in the format of the print statement. The code works except I am getting a "None" between each answer when a test is run. How do I prevent the None from printing? …

Function is returning NoneType in Python instead of integer Question: def function(n): if n%4==1: return(n**2) else: n += 1 function(n) # Here for example n=6: if function(6)%2==0: print(function(6)) else: print("Hey!") This is showing the error unsupported operand type(s) for %: ‘NoneType’ and ‘int’. I have tried to convert NoneType with int() but that is telling …

Codility OddOccurrencesInArray Problem – Recursion and Python Question: I am trying to use recursion to solve the OddOccurrencesInArray Problem in Codility, in which we are given an array with N elements, N is always odd all of the elements of the array except for one has a total even number of occurrences we need to …

query database using sqlite3.connect and check for matching results Question: My Discord bot queries a database and checks if there is a matching entry. To check for a matching entry I am using an if statement like here. But somehow my code is not working as expected: def check_db_entry(): message = ‘Some Message.’ user_id : …