_billing() Code language: Python ( python ) The following shows how to use functions in the order, delivery, and billing modules from the sales package: # main.py import sales.order To import a package, you use the import statement like this: import package.module Code language: Python ( python )Īnd to access an object from a module that belongs to a package, you use the dot notation: Code language: Python ( python ) This allows Python to treat a folder as a package without the _init_.py.įor example, the following picture shows the sales package that contains three modules including order, delivery, and billing: Note that starting with Python 3.3, Python introduced the implicit namespace packages feature. To instruct Python to treat a folder containing files as a package, you need to create a _init_.py file in the folder. To create a package, you create a new folder and place the relevant modules in that folder. The way Python organizes packages and modules like the Operating System structures the folders and files. Packages allow you to organize modules in the hierarchical structure.
When the number of modules grows, it’ll become difficult to keep all of them in one location.Īnd you may want to group modules into something meaningful. Suppose that you need to develop a large application that handles the sales process from order to cash. Therefore, some of them are not easily pip installable.Summary: in this tutorial, you learn about the Python packages and how to use them to structure your application. Also, please be aware that some of the introduced packages require installing software or downloading and compiling a copy of their binary files to be imported into Python. MINLP+MIQP+MILP+NLP+IP+LP Packages Packageġ- If you are having trouble while installing via !pip install (in-line code) or pip install (terminal code), you may use the following piece of code.
0 kommentar(er)
