I am Dave Jing Tian, an Assistant Professor in the Department of Computer Science at Purdue University working on system security. My research involves embedded systems, operating systems, and trusted computing. All opinions are my own.
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Tag Archives: Python
This post is the summary of some pitfalls of Python programming I have encountered. May it help:) 1. remove() List’s remove function is used to remove certain item from the list. However, remove function always removes the first item it … Continue reading
There is no pointers in Python but there are pointers in Python indeed. Among different kinds of pointer implementation in Python, this post demonstrate an elegant way to use pointers, especially object pointers when doing Python OOP. Detailed ‘ctypes’ module … Continue reading
This post is used for final project of CIS610 – Teaching Effectiveness in CIS dept at UO, dedicated to the students with background of CIS122 – Intro to Algorithms and Problem Solving Using Python. Background of Java is not mandatory … Continue reading
There are some tricky stuffs if you are planning to install nltk for your Python2.7 (Note, only Python 2.x is supported right now) on 64-bit win7 system. Generally, all these awkward trouble are caused by stupid windows installer, which may … Continue reading
Get all the information about ‘Sieve of Eratosthenes’ on wikipedia (http://en.wikipedia.org/wiki/Sieve_of_Eratosthenes). This algorithm does tell us there should be some algorithms with better time complexcity or space complexcity. Fun! (pic took from Wikipedia) [daveti@aimlab python]$ cat sea.py #!/bin/env python # … Continue reading
Get all the information about the old, famous and interesing Caesar Cipher (http://en.wikipedia.org/wiki/Caeser_cipher). In this post we will implement the Caeser Cipher Encoder (cce.py), Caeser Cipher Decoder (ccd.py) and Caeser Cipher Brute Force Decipher (ccbfd.py). Have FUN:) (BTW, I have … Continue reading
Right now, I am a teaching assistent in University of Oregon (UO) for CIS-122 (Introduction to Programming and Algorithms Using Python). We would like our students to make full use of CScircles of CS department at University of Waterloo (http://cscircles.cemc.uwaterloo.ca/), … Continue reading