Looks like there is no way to time user input. In the link that SmartElectron provided, the solution does not work since the timer is halted once the raw_input is requested. Best solution so far is: # Declare a mutable object so that it can be pass via reference user_input = [None] # spawn a … Read more
I’ve done this in the past using jQuery. You can measure the size of a piece of text like this: // txt is the text to measure, font is the full CSS font declaration, // e.g. “bold 12px Verdana” function measureText(txt, font) { var id = ‘text-width-tester’, $tag = $(‘#’ + id); if (!$tag.length) { … Read more
In your string comparison, the correct answer itself had the first letter capitalized. correctAnswer = “london” userGuess = input(“What is the capital of Great Britain?: “).lower() if userGuess == correctAnswer: print(“Correct!”) else: print(“Wrong”)
.nextInt() gets the next int, but doesn’t read the new line character. This means that when you ask it to read the “next line”, you read til the end of the new line character from the first time. You can insert another .nextLine() after you get the int to fix this. Or (I prefer this … Read more
There are 2 observations : Using myScannerInstance.nextInt() leaves behind a new line character. So, if you call nextLine() after nextInt(), the nextLine() will read the new line character instead of the actual data. Consequently, you will have to add another nextLine() after the nextInt() to gobble up that dangling new-line character. nextLine() doesn’t leave behind … Read more
I call this a golden rule of web programming: Never ever respond with a body to a POST-request. Always do the work, and then respond with a Location: header to redirect to the updated page so that browser requests it with GET. This way, refreshing will not do you any harm. Also, regarding a discussion … Read more
For those you need to use the macros from inttypes.h such as SCNd64 or SCNu32 etc. scanf(“%” SCNd32, &x);
Python 3: inp = int(input(“Enter the inputs : “) or “42”) Python 2: inp = int(raw_input(“Enter the inputs : “) or “42”) How does it work? If nothing was entered then input/raw_input returns empty string. Empty string in Python is False, bool(“”) -> False. Operator or returns first truthy value, which in this case is … Read more
from ast import literal_eval def get_type(input_data): try: return type(literal_eval(input_data)) except (ValueError, SyntaxError): # A string, so return str return str print(get_type(“1”)) # <class ‘int’> print(get_type(“1.2354”)) # <class ‘float’> print(get_type(“True”)) # <class ‘bool’> print(get_type(“abcd”)) # <class ‘str’>
Question 1: Restrict to certain characters You are right, this is easy to solve with regular expressions: import re input_str = raw_input(“Please provide some info: “) if not re.match(“^[a-z]*$”, input_str): print “Error! Only letters a-z allowed!” sys.exit() Question 2: Restrict to certain length As Tim mentioned correctly, you can do this by adapting the regular … Read more