To do this, you must first open files in the appropriate mode. Here’s an example of how to use Python’s “with open(…) as …” pattern to open a text file and read its contents: Python with open('data.txt', 'r') as f: data = f.read() open() takes a filename and ...
classes modules packages Python modules are used to organize Python code. For example, database related code is placed inside a database module, security code in a security module etc. Smaller Python scripts can have one module. But larger programs are split into several modules. Modules are gr...
Impacket is a collection of Python classes for working with network protocols. Impacket is focused on providing low-level programmatic access to the packets and for some protocols (e.g. SMB1-3 and MSRPC) the protocol implementation itself. Packets can be constructed from scratch, as well as pa...
Modules and metaclasses are important features of Python. When working on large projects, having a good understanding of modules and metaprogramming will help you write cleaner code. Metaclasses in Python are a kind of hidden feature that you don't need to care about until you have a specific...
A form’s fields are themselves classes; they manage form data and perform validation when a form is submitted. ADateFieldand aFileFieldhandle very different kinds of data and have to do different things with it. A form field is represented to a user in the browser as an HTML “widget” ...
The arcgis.geometry.Geometry class is a base class from which specific geometry classes inherit. Users generally do not instantiate the base class, but work directly with one or more child classes such as Point, Polyline, Polygon etc. The base class provides geometry operations such as clip(),...
Calling a stored procedure might result in having to deal with multiple result sets as part of a single execution. As a result for the query execution an SqlResult object is returned, which encapsulates the first result set. After processing the result set you can call nextResult() to move ...
Values can be appended to a list by calling append method on list. A method is just like a function, but it is associated with an object and can access that object when it is called. We will learn more about methods when we study classes....
Splitting PDFs into Pages with PyPDF2 For this example, both thePdfFileReaderand thePdfFileWriterclasses first need to be imported. Then we open the PDF file, create a reader object, and loop over all the pages using the reader object'sgetNumPagesmethod. ...
Impacket is a collection of Python classes for working with network protocols. Impacket is focused on providing low-level programmatic access to the packets and for some protocols (e.g. SMB1-3 and MSRPC) the protocol implementation itself. Packets can be constructed from scratch, as well as pa...