import re FILEPATH = “./file.txt” def main(): pattern = re.compile(“‘serial_number\’\: u\'(.*?)\'”) with open(FILEPATH, ‘rU’) as f: print(pattern.findall(f.read())) if __name__ == “__main__”: main() 4 solved Extract string from text file using python [closed]
Math.pow(base, exponent) is the answer. console.log(Math.pow(4, 3)) // 64 In addition, newer browers [quotation needed] supports the ** operation: console.log(4 ** 3) // 64 If you want to test if your current browser supports it simply click on “Run code snippet”. If you see 64, congratulations! It works. 0 solved How can I raise a … Read more
You probably copy pasted functions but forgot to include appropriate headers (newbie mistake). Just try this: #include <iostream> #include <vector> #include <complex> using namespace std; int main() { cout<<“Hello World”; return 0; } 2 solved How to include std::vector, std::complex, std::cout, etc. in Visual Studio C++ [closed]
You need add child into parent object in the second constructor: import java.util.ArrayList; import java.util.List; public class Node<T> { private List<Node<T>> children = new ArrayList<Node<T>>(); private Node<T> parent = null; private T data = null; public Node(T data) { //used to create parent this.data = data; } public Node(T data, Node<T> parent) { this.parent = … Read more
See the comments for an explanation. /** * Generate random numbers at an interval * @param perMinute – The number of numbers to generate per minute * @param totalNumbers – The total number of numbers to generate * @param minNumber – The minimum number to be generated * @param maxNumber – The max number to … Read more
Save the code below as _unitconversion.scss Import it in your scss file @import ‘_unitconversion.scss’; em(480px) will now output as 30em in your css https://codepen.io/jakob-e/pen/AHunv // ____________________________________________________________________________ // // Unit Conversion v.2.1.2 // ____________________________________________________________________________ // // Function Input units // // Absolute length // px(input); px, pt, pc, in, mm, cm, q, em, rem, number // … Read more
When working with dates and times, it is almost always best to convert the date first into a Python datetime object rather than trying to attempt to alter it using a regular expression. This can then be converted back into the required date format more easily. With regards to leading zeros though, the formatting options … Read more
Define your function example as this:- def exemple(func_name): def dostuff1(): print(‘Stuff 1’) def dostuff2(): print(‘Stuff 2’) def dostuff3(): print(‘Stuff 3’) func_dic = { “dostuff1” : dostuff1, “dostuff2” : dostuff2, “dostuff3” : dostuff3 } return func_dic[func_name] Then call your function in the other function like this: def training(): exemple(“dostuff2”)() I hope it helps! 3 solved Python … Read more
You don’t need arguments in GetMenuOption() and GetValue() methods. And here is loop (it is needed if you want to process more than one temperature) with switch: while (true) { DisplayMenu(); var letter = GetMenuOption(); var fromString = String.Empty; var toString = String.Empty; if (letter == ‘X’) { break; } var fromValue = GetValue(); var … Read more
You’ve got an else with no attached if. Presumably, the println are supposed to be inside the following block, rather than being the entire body of the if statement: if(ID.indexOf(msg)>=0) { Serial.println(“Access granted.”); // <<< inside if body digitalWrite(10, HIGH); delay(2000); digitalWrite(10, LOW); } else { Serial.println(“Access denied.”); // <<< inside else body digitalWrite(9, HIGH); … Read more
Looks like you want to be able to hide other albumCover elements on clicking one of them. There are a couple of mistakes Your inner for-loop re-localize the scope of i, use different variable i’s value (assuming another variable is used in inner for-loop) will not remain same when the click will happen. Make it … Read more
(This is for C#, back when there was a C# tag. Not sure how this converts to java) You can write a method that takes an integer that represents how many times you want to execute some method, and that takes an Action or delegate for the method to execute: private static void ExecuteNTimes(int n, … Read more
I wonder how you are able to run this program, seems to be some harry potter stuff. For me its typo in this line “ele” == input(“”) and gives Syntax error . So just fix this with ele = input() and replace “ele” with ele in all if/elif checks i.e if ele == “H”:it will … Read more
Good start in your comment but what is in your array is strings not integers so you would loop through the strings. Dim TeamString(31) As String For Each Team As String In TeamString MessageBox.Show(“Team Name:” & Team) Next 0 solved Converting the For Next Loop into a For Each Loop
You overwrite the value of your commandtext with a select statement before executing the update statement, so it is never run. 1 solved Updating SQL database Issue [closed]