interpreter

sorry for a simple question! I want to use WinPython (recently installed) as a interpreter for PyCharm Community Edition but am getting an error "The selected file is not a valid home for Python SDK" (see image) Does anybody have any idea of what the issue may be? Do I have to do any other steps (with the path, etc.)? cricket_007 You need to select the folder where a python.exe (and possibly pythonw.exe ) exists, which looks like maybe the python-3.4.4.amd64 folder And, according to this answer open PyCharm and add a new python interpreter giving the path of where you installed Winpython to

Computers can only understand machine language. Then how come interepreters execute a program directly without translating it into machine language? For example: <?php echo "Hello, World!" ; It's a simple Hello World program written in PHP. How does it execute in machine while the machine has no idea what echo is? How does it output what's expected, in this case, the string Hello, World!? Many interpreters, including the official PHP interpreter, actually translate the code to a byte code format before executing it for performance (and I suppose flexibility) reasons, but at its simplest, an

I wrote a php script that must be run on the php interpreter (Without Apache), which uses the adodb library with an Oracle database, but when I try to run it, I'm getting the following error: PHP Notice: Use of undefined constant OCI_COMMIT_ON_SUCCESS - assumed 'OCI_COMMIT_ON_SUCCESS' in c:\proyect\backend\libraries\adodb\adodb.inc.php on line 4248 I've checked, and have both the php_oci8 and php_oci8_11g enabled, so the constant SHOULD be defined. Also, when I run this script WITH Apache, it works without any problems. Thanks in advance! After a quick search I found this page . If you don't

What is the difference between "inspect" and "interactive" flags? The sys.flags function prints both of them. How can they both have "-i" flag according to the documentation of sys.flags? How can I set them separately? If I use "python -i", both of them will be set to 1. Related: tell whether python is in -i mode According to pythonrun.c corresponding Py_InspectFlag and Py_InteractiveFlag are used as follows: int Py_InspectFlag; /* Needed to determine whether to exit at SystemError */ /* snip */ static void handle_system_exit(void) { PyObject *exception, *value, *tb; int exitcode = 0; if (Py

Possible Duplicate: Commenting interpreted code and performance Does comments affect when including files in PHP? Let's say we have 100 class files and everytime when a page is requested, all these classes must be parsed by PHP. Will PHP be slower if almost 1 half of the source code lines are the comments? Because usually I add a lot of comments & descriptions to code. This doesn't matter to compilers coz comments are not compiled, but PHP is interpreter, any bad thing may happen? Yes, but it's minimal, and this can (and should) be addressed entirely by using APC or another opcode cache. As a

I'm learning Java and the following things are a bit confusing for me. What I understood is: Java Compiler → The Java compiler just converts .java programs into .class files, which means converting our source code into bytecode (it is a list of op codes for the virtual machine (JVM) which makes Java platform-independent). Java Interpreter → merely "interprets" the code and does not transform it into native machine code. It executes each and every instruction of the byte code one-by-one as a command and carries it out, regardless how many time the same instruction occurs. That's why it's slow

This question already has an answer here: bit-wise operation unary ~ (invert) 5 answers what does the '~' mean in python? i found this BF interpreter in python a while ago. import sys #c,i,r,p=0,0,[0]*255,raw_input() c=0 i=0 p=raw_input() r=[0]*255 while c<len(p): m,n,u=p[c],0,r[i] if m==">":i+=1 if m=="<":i-=1 if m=="+":r[i]+=1 if m=="-":r[i]-=1 if m==".":sys.stdout.write(chr(u)) if m=="[": if ~u: while 1: m=p[c] if m=="]":n-=1 if m=="[":n+=1 if ~n:break c+=1 if m=="]": if u: while 1: m=p[c] if m=="]":n-=1 if m=="[":n+=1 if ~n:break c-=1 c+=1 and i want to know what it does because i want to