Python is a wonderful language, but some parts should really have bright WARNING signs all over them. There are features that just can't be used safely and others are that are useful but people tend to use in the wrong ways.This is a rough transcript of the talk I gave at my local Python group on November 15, with some of the audience feed back mixed in. Most of this came from hanging around the Python IRC channel, something I highly recommend.[update 2011-12-19: improved "array" critique, add "python -i" suggestion to "reload" critique, add html targets to sections]Easy Stuff FirstStarting...

A new study examining 365 million lines of code in 745 applications identifies bad coding practices that affect security, performance and uptime, with Java Enterprise Edition applications having the greatest number of problems. Cast Software, which makes tools that automate the analysis of business applications, examined programs written in Java-EE, .NET, ABAP, C, C++, Cobol, Oracle Forms, and Visual Basic, used across a wide range of industries from energy and financial services to IT consulting, insurance, government, retail, telecom, and more. Java-EE applications were the most prevalent in...