{"id":1583,"date":"2018-11-18T10:32:22","date_gmt":"2018-11-18T09:32:22","guid":{"rendered":"https:\/\/pythonprogramming.altervista.org\/?p=1583"},"modified":"2020-08-02T19:35:35","modified_gmt":"2020-08-02T17:35:35","slug":"use-your-own-module-on-python","status":"publish","type":"post","link":"https:\/\/pythonprogramming.altervista.org\/use-your-own-module-on-python\/","title":{"rendered":"Use your own module on python"},"content":{"rendered":"

Let’s create a calculator to see how to use your own modules with python, the way you can use them in any place, not just having them in the work directory.<\/p>\n

cmd<\/h2>\n

You can use this way to get the result from a module of your.<\/p>\n

\"\"<\/a><\/p>\n

The code of this module is really simple.<\/p>\n

import sys\r\n\r\nprint(eval(sys.argv[1]))<\/pre>\n
What does he do? It takes the argument (in the example is 4*5\/8*(9+3) and gives you the result (with eval). The result is this, by the way:<\/p>\n
\"\"<\/a><\/p>\n
So, you have your little calculator, without having to start python.<\/p>\n
If you have the calc.py in the directory where the cmd is, there are no problems, otherwise you have to:<\/p>\n
go check where the site-packages dir in the python installation is and put a file in there. To find where is this dir, you can do:<\/p>\n
\"\"<\/a>
\nThen you follow the path (in this case is C:\\\\Users\\\\giova\\\\AppData\\\\Local\\\\Programs\\\\Python\\\\Python37-32\\\\Lib\\\\site-packages).<\/p>\n
Now save a file like mymodules.pth (any name is good, the file extension is the important thing), and write the path of the dir where you want that Python searches for the modules. You’re done. Now you can launch your modules like any built in module.<\/p>\n
Utilities<\/h4>\r\n\r\n<\/a>\r\n