Install Page

It provides user options to install pip packages using different methods. Therefore, three most useful user tasks are implemented :

1. Install From PyPI
2. Install From Local Archive
3. Install From Requirements File
4. Install From PythonLibs

The GUI options for switching betweeb these pages are provided as a set of buttons stacked vertically in a tkinter frame. Further options can be added easily by modifying manage_frame() method.

Install From PyPI Page

Main components of this page are :

• Search Bar

  In order to maintain consistency in UI design the search bar is placed at top with a search button to it’s left. It has been ensured that the search bar functions in deafult way i.e. both actions clicking search button and pressing <Return> key with focus on tkinter Entry widget invoke the pip search command.

• Tree View

  The treeview widget is used to show search results with four fields: - Module Name - Installed Version - Available Versions - Module Summary

  Out of four fields, three fields are shown as row elements of treeview widget. On <Double Click>, detailed summary is shown in the below text widget. Here, again consistency is maintained as most other package managers or installation wizards with GUI function in similar way.

Install From Local Archive

It contains an tkinter entry widget with a Browse button. The Browse button invokes the standard file dialog selection menu. It has been ensured that file dialog shows archive files so that user can easily choose from small number of options.

Note

This page requires improvement as there is empty space available in frame.

Install From Requirements File

The page layout for the Install From Requirements File page is similar to Install From Local Archive Files.

Note

This page requires improvement as there is empty space available in frame.

Install From PythonLibs

The functionality to download and install Windows binary from Pythonlibs (http://www.lfd.uci.edu/~gohlke/pythonlibs/) is provided by this page. The implementation can be broken down in two parts :

• Page Layout

  The page layout has options for searching through available Windows binaries, installation and sync with backend. The backend is explained in next section.

• Pythonlibs Backend

  For optimum user performance ( that is to provide instant search results ), it is necessary to minimize time delay between giving search query and recieving search results. Therefore, application maintains a local Pythonlibs backend with an option for syncing with latest backend available online here: `pythonlibs_modules https://github.com/upendra-k14/pythonlibs_modules`_

  The Pythonlibs backend is essentially a json file with crawled metadata from Pythonlibs. The crawler is deployed as a cron job to daily crawl metadata from Pythonlibs and automatically commit to : `pythonlibs_modules https://github.com/upendra-k14/pythonlibs_modules`_

  The crawler code is `here https://github.com/upendra-k14/pip_gui/tree/master/pythonlibscron`_