'cd' command refers to change directory and absolute path refers to the couple path.
(Eg) "cd c:\program files\open office 4\program"

(i) SWIG - Simplified Wrapper Interface Generator
(ii) MinGW - Minimalist GNU for Windows

(i) The theoretical difference between the two is that scripting languages do not require the compilation step and are rather interpreted.
(ii) For example, normally, a C++ program needs to be compiled before running whereas, a scripting language like JavaScript or Python need not be compiled.
(iii) A scripting language requires an interpreter while a programming language requires a compiler. 

getopt() method returns value consisting of two elements. Each of these values are stored separately in two different list opts and args. opts contains list of splitted strings like made, path and args contains any string if at all not splitted because of wrong path or mode. args will be an empty array if there is no error in splitting strings by getopt().
Example:
The Python code which is going to execute the C++ file p4 in command line will have the getopt() method.
Syntax:
opts, args = getopt.getopt (argv, "i:", ['ifile ='])
where opts contains ('-i','c:\\pyprg\\p4')]]
-i:- option nothing but mode should be followed by
'c:\\pyprg\\p4' value nothing but the absolute path of C++ file,
Since the entire command-line commands are parsed and no leftover arguments, the second argunent args will be empty[].

(i) Python's Sys module:
This module provides access to some variables used by the interpreter and to functions that interact strongly with the interpreter.
Sys.argv:
(i) Sys.argv is the list of command-line arguments passed to the Python program.argv contains all the items that come along via the command-line input, it's basically an array holding the commandline arguments of the program.
(ii) To use sys.argv, we will first have to import sys. The first argument, sys.argv[O], is always the name of the program as it was invoked, and sys.argv[1] is the first argument you pass to the program (here it is the C++ file).
Example:
main (sys.argv [1]) Accepts the program file and input file as a list. argv [O] contains the Python program which is need not to be passed because bydefault_main_contains source code reference and argv [1] contains the name of the C++ file.
(ii) Python's OS module:
The OS module in Python provides a way of using operating system dependent functionality.
The functions that the OS module allows to interface with the windows operating system where Python is running on.
OS.system(): Execute the C++ compiling command in the shell.
Example:
os.system <'g++'+<variable - name 1> - '<mode>' <variable_name 2>
os.system: Function system() defined in os module. g++: General compiler to compile C++ program under
windows Operating system. Variable_name 1: Name of the C++ file without extension. cpp in string
format. Mode: To specify input or output mode. Here it is o prefixed
with hyphen. Variable_name 2: Name of the executable file without extension.exe in
string format. (iii) Python getopt module:
The getopt module of python helps to parse command-line options and arguments. This module provides two functions to enable command-line argument parsing.
getopt.getopt method:
This method parses command line options and parameter list.
Syntax:
<opts>, <args> = getopt.getopt(argv, options, [long_options])
argv - This is the argument list of values to be parsed.
options - This is string of option letters that the Python program recognize as, for input or for output with options 'i' or 'o' that followed by a colon(:).
Long- options - This parameter is passed with a list of strings. Argument of long options should be followed by an equal sign '='.

Step 1: Type the C++ program to check whether the input number is palindrome or not in notepad and save it as "pali_cpp.cpp".
Step 2: Type the Python program and save it as pali.py.
Step 3: Click the Run Terminal and open the command window
Step 4: Go to the folder of Python using cd command
Step 5: Type the command Python pali.py -i pali_cpp

(i) We can import the definitions inside a module to another module. We use the import keyword to do this.
(ii) Using the module name we can access the functions defined inside the module. The dot (.) operator is used to access the functions. The syntax for accessing the functions from the module is.
<module name>. <function name>
(iii) Example: >>> factorial.fact(5)

The commonly used interfaces are
(i) Python-C-API (API-Application Programming Interface for interfacing with C programs)
(ii) Ctypes (for interfacing with c programs)
(iii) SWIG (Simplified Wrapper Interface Generator- Both C and C++)
(iv) Cython (Cython is both a Python-like language for writing C-extensions)
(v) Boost. Python (a framework for interfacing Python and c++)
(vi) MinGW (Minimalist GNU for Windows)