[Solved] Got UnboundLocalError: Local Variable referenced before assignment, but it wasn’t

Your findall(‘CRC-START(.*?)CRC-END’, PIDFile.read(), re.S) on line 202 didn’t find anything, PID didn’t get declared, boom, UnboundLocalError. This happens because python interpreter makes a preliminary pass on the code, marking encountered variables as local, but it does not (and cannot) check if code that declares them will actually be executed. Minimal reproducible example of that effect … Read more

[Solved] Is it possible to name a variable using a method in c#?

What you will need to use to do this is the System.Dynamic.ExpandoObject class. using System; using System.Dynamic; using System.Collections.Generic; public class Program { public static void Main() { var args = “–Bar –Foo MyStuff”.Split(); var parsedArgs = ParseArgs(args); Console.WriteLine(parsedArgs.Foo); //Writes “MyStuff” Console.WriteLine(parsedArgs.Bar); //Writes true; Console.WriteLine(parsedArgs.NotDefined); //Throws run time exception. } public static dynamic ParseArgs(string[] args) … Read more

[Solved] Using R, how to reference variable variables (or variables variable) a la PHP

Consider using get() to obtain environment variables from string values. Additionally, consider the nested lapply() between dataframe and model lists for more organized returned object. Nested for loops would require appending each iteration into growing list unless you just need to output. Below examples use linear models, lm(): model1 <- y ~ x1 model2 <- … Read more

[Solved] How optimize while in while code? [duplicate]

If you need all of them as ids (which includes a string which is weird). Consider this example: $text=”12-10-4-32-45-name-sara-x-y-86″; $text = array_unique(explode(‘-‘, $text)); // just in case there are duplicate ids $statement=”SELECT * FROM `table` WHERE `pid` IN(“”.implode(‘”, “‘, $text).'”) ORDER BY `id` LIMIT 3’; // should be like this // SELECT * FROM `table` … Read more

[Solved] how to operate on global variables in c++

The problem is that you’re storing pointers into cstr in argv, but then you’re deleting cstr at the end of the parse() function. Get rid of: delete[] cstr; Also, you should pass argc by reference. Otherwise, when you update it in the parse() function it won’t update the caller’s variable. So it should be: void … Read more

[Solved] Where do I define my variables? [closed]

you have to create an instance of your class in order to access non static variables from your static methods in java. public class MainGUI { int num1= 1366, num2= 528, num3= 482, sum; // declare these static? public static void main(String args[]) { MainGui m = new MainGUI(); sum = m.num1 + m.num2+ m.num3; … Read more