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Learn To Build A Python GUI For Working with HTTP Requests With Requests Library In A Delphi Windows App

Python for Delphi (Python4Delphi , P4D) with Requests library allow you to execute Http requests in Python GUI for Windows. Python4Delphi is a free tool that can run Python scripts, work with new Python types and modules in Delphi. In this post, we will learn at how to run Requests library in Python for Delphi.

Delphi itself offers a number of advanced HTTP and REST libraries. If you have an existing Python application and you need to make HTTP requests you could use the Python Requests library or you could send the requests over to Delphi and make the requests from there. Alternately, you could make HTTP requests via the Python Requests library and then pass the data to Delphi and display it in the Delphi Windows GUI app. You can use Python4Delphi a number of different ways such as:

  • Create a Windows GUI around you existing Python app.
  • Add Python scripting to your Delphi Windows apps.
  • Add parallel processing to your Python apps through Delphi threads.
  • Enhance your speed sensitive Python apps with functions from Delphi for more speed.

Build your own Python GUI apps for Windows with Delphi and C++Builder and Python4Delphi using various Python libraries. Open and run project Demo1, then select Python script that you want execute in Python for Delphi. Use text fields for inserting Python script and for viewing results. Click Execute button for running Python script. Go to GitHub and download Demo1 source.

Requests is a simple Python library that allows you to execute standard HTTP requests. Using this library, you can pass parameters to requests, add headers, receive and process responses, execute authenticated requests. Let’s look at some examples.

Make GET Request

It is very easy to call GET request. Just use method get() and pass URL to this method. From response object you can get a lot of useful information. This example shows how to get content, status and list of response headers. You also can get other properties.


POST Request with payload and timeout

With Requests library, you can perform post requests by calling post() method. It is also possible to pass input data to the parameter payload. Different types of input data are possible. For example, dictionaries, tuples, lists


Authenticated Request

In this example we will take a look at how to execute authenticated requests. It is very easy, just pass the username and the password in the auth parameter. If authorization is successful, then we will receive a response status code 200, otherwise there should be non-authorization error 404.

Check out the Requests library for Python a use it in your own projects. Check out Python4Delphi which can build Python GUIs for Windows using Delphi.

Find out why Python GUI is an ideal language for novices and experienced programmers alike.

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