Does python reuse repeated calculation results? Question: If I have an expression that I wish to evaluate in Python, such as the expression for r in the code snippet below, will the Python interpreter be smart and reuse the subresult x+y+z, or just evaluate it twice? I’d also be interested to know if the answer …
Is Python interpreted, or compiled, or both? Question: From my understanding: An interpreted language is a high-level language run and executed by an interpreter (a program which converts the high-level language to machine code and then executing) on the go; it processes the program a little at a time. A compiled language is a high-level …
Referring to the null object in Python Question: How do I refer to the null object in Python? Asked By: Lizard || Source Answers: In Python, the ‘null’ object is the singleton None. To check if something is None, use the is identity operator: if foo is None: … Answered By: Ben James It’s not …
If Python is interpreted, what are .pyc files? Question: Python is an interpreted language. But why does my source directory contain .pyc files, which are identified by Windows as "Compiled Python Files"? Asked By: froadie || Source Answers: They contain byte code, which is what the Python interpreter compiles the source to. This code is …
Do comments slow down an interpreted language? Question: I am asking this because I use Python, but it could apply to other interpreted languages as well (Ruby, PHP, JavaScript). Am I slowing down the interpreter whenever I leave a comment in my code? According to my limited understanding of an interpreter, it reads program expressions …
