I know that Pyhon compiles source code to a Byte Code before the interpreter works on it. What does this Byte Code look/behave like?
Python Byte Code is actually machine code. To be specific, it is machine code for the Python Virtual Machine within the interpreter. Java does something quite similar for the Java Virtual Machine (JVM). Since the machine code is not written for a specific CPU Python like Java becomes much more cross-platform. The compiled byte code files (.pyc or .pyo) can run on many different machines. It's the interpreter that is machine specific.
Python itself does not have an assembler, but you can disassemble Byte Code and it looks a lot like Assembly Language. Here is an example ...
# the Python Virtual Machine Instructions (byte code) # can be disassembled and mimic assembly code # for instance: # LOAD_FAST var_num --> pushes a reference to local co_varnames[var_num] onto the stack # STORE_FAST var_num --> stores top of stack into the local co_varnames[var_num] # LOAD_CONST consti --> pushes co_consts[consti] onto the stack import dis def myfunc(): a = 2 b = 3 print "adding a and b and 3" c = a + b + 3 if c > 7: return c else: return None # this disassembles the above function's code dis.dis(myfunc) """ 7 0 LOAD_CONST 1 (2) 3 STORE_FAST 0 (a) 8 6 LOAD_CONST 2 (3) 9 STORE_FAST 2 (b) 9 12 LOAD_CONST 3 ('adding a and b and 3') 15 PRINT_ITEM 16 PRINT_NEWLINE 10 17 LOAD_FAST 0 (a) 20 LOAD_FAST 2 (b) 23 BINARY_ADD 24 LOAD_CONST 2 (3) 27 BINARY_ADD 28 STORE_FAST 1 (c) 11 31 LOAD_FAST 1 (c) 34 LOAD_CONST 4 (7) 37 COMPARE_OP 4 (>) 40 JUMP_IF_FALSE 8 (to 51) 43 POP_TOP 12 44 LOAD_FAST 1 (c) 47 RETURN_VALUE 48 JUMP_FORWARD 5 (to 56) >> 51 POP_TOP 14 52 LOAD_CONST 0 (None) 55 RETURN_VALUE >> 56 LOAD_CONST 0 (None) 59 RETURN_VALUE """
Talking about Java, there is actually a modified Python called Jython that produces Java Byte Code for the JVM and can use the Java libraries.
I am developing a simple job card creator application with VB.net 2012, using Access 2010 as database.
The code I have generated to write data from a datagridview to the database table is successfully saving the data, but with an error "Parameter @name has no default value". The ...
write a C++ program which take inputs from the user/keyboard and calculate his ZAKAT.
get the input from user may include
-Amount invested in business
-Amount given to other business partners as loan
-Amount payable to others
I made a prime number finder, it finds the nearest prime that is above and below any integer (Does not work that well with giant numbers.)
Made this in cpp.sh
Why would I need the x=y+1-1;?
x=y; just doesnt seem to work
Why is this?
And I know my coding ...