Making sleep.sh executable and adding shell=True to the parameter list (as suggested in previous answers) works ok. Depending on the search path, you may also need to add ./ or some other appropriate path. (Ie, change “sleep.sh” to “./sleep.sh”.) The shell=True parameter is not needed (under a Posix system like Linux) if the first line … Read more
Suposse you have Class1 Class2 and then you can use Class2 in different ways. Class Field Method field Static methods from Class2 Imagine this is your class2. from class1 you can use doSomething from Class2 whenever you want
In general it’s best not to rely on finalize() to do any cleaning up etc. According to the Javadoc (which it would be worth reading), it is: Called by the garbage collector on an object when garbage collection determines that there are no more references to the object. As Joachim pointed out, this may never happen in the life … Read more
You call an instance of a class as in the following: But this will typically give us an error. How can we call the instance as intended, and perhaps get something useful out of it? We have to implement Python special method, __call__! Instantiate the class: Now we can call the class instance: which prints: And … Read more
You can’t use the same variable name for a function and a float (in the same namespace). And you both defined a bear function and a bear variable pointing to a float. You need to change one of the two names.