My book Create Simple GUI Applications with Python & Qt5 has been updated! New chapters on the Model View architecture and custom widgets.

Dictionary Views & Set Operations

The keys, values and items from a dictionary can be accessed using the .keys(), .values() and .items() methods. These methods return view objects which provide a view on the source dictionary.

Dictionaries

Dictionaries are key-value stores, meaning they store, and allow retrieval of data (or values) through a unique key. This is analogous with a real dictionary where you look up definitions (data) using a given key — the word. Unlike a language dictionary however, keys in Python dictionaries are not alphabetically sorted.

1D 1H NMR data processing

1D 1H NMR is a common technique applied to metabolomic studies, being well suited to untargeted analysis of complex biofluids. It has been successfully applied to the classification and diagnosis of a number of diseases including [ref].

Wooey

Wooey is a simple web interface to run command line Python scripts. Think of it as an easy way to get your scripts up on the web for routine data analysis, file processing, or anything else.

Getting Started with Pathomx

This is quick start-up guide for new users of Pathomx. Following it should give you everything that you need to know to start using Pathomx right away. Once you've been through the basics you might like to see some of the demos to see what Pathomx is capable of.

PyQtConfig

PyQtConfig: a simple API for handling, persisting and synchronising configuration within PyQt applications. This module was built initially as part of the Pathomx data analysis platform but spun out into a standalone module when it became clear it was quite useful.

Gremlins in the Machine

Pathomx is a workflow-based data analysis tool built on IPython. It began as a metabolomic-analysis toolkit, but has extended to support general data analysis workflows. It aims to be simple to use for non-experts while powerful enough for complex analysis tasks. Key to both of these goals is the ability to create 'custom tools' that can be drag-dropped together to form larger workflows.

NMRLab 1D NMR processing (MATLAB)

This notebook uses a subset of the available processing features in NMRLab (+Metabolab) to process 1D NMR spectra. The output is saved as a CSV file that can be imported into pandas, PLS_Toolbox or any other package for subsequent analysis.

BioCyc (API)

BioCyc is a Python interface to the BioCyc Web API. Acting as a wrapper it queries the database and then presents the XML returned in a pythonic object-based interface. Support for IPython views is included offering nice summary tables of object attributes.

BioCyc Interface Demo

This notebook is a quick demo of a BioCyc Web API I've released for Python. While incomplete the API offers access to most basic attributes for metabolites, proteins, reactions, pathways and organisms in the database. The Python interface comes with an disk-based caching mechanism under ~/.biocyc that greatly reduces the delay (and load) for BioCyc servers.

mplstyler StylesManager demo

Now we've got the classes for the data plotted, we can now plot the mean values (of the spectra). To get a style assignment for a given class we need to call .get_style_for_class() on the styles manager. This returns a useable style object that can output the keyword arguments needed to correctly style matplotlib plots.

Dot Blot Analysis with ImageJ

Analyzing a dot blot in ImageJ by background subtraction and measuring the integrated density of each dot. This dot blot image is available in the File/Open Samples menu in ImageJ 1.33s or later.

QtIPy

QtIPy: The data automator! a simple GUI-based run-automator for IPython notebooks. It allows you to attach triggers to files, folders or timers to automatically run notebooks.

mplstyler

I've just released a simple API for managing matplotlib line and marker styles for plots. It's called mplstyler and you can get it from Github or PyPi. This code is based on the style manager in Pathomx, extracted for more general use.

QColorButton

Below is a short snippet to implement a color-picker attached to a button in Qt. Clicking on the button pops up a dialog (native) to select a color. The color is shown by the color of the button face. A right-click option is included to allow clearing of the color setting (returning the value to None).