下载tar包：http://www.jetbrains.com/pycharm/download/ 解压，执行bin/pycharm.sh ，搞定！
注意查看环境要求：
System requirements-
512 MB RAM minimum, 1 GB RAM recommended
1024x768 minimum screen resolution
Sun JDK 1.6. (OpenJDK is not supported)
GNOME or KDE desktop
Python 2.4 or higher, Jython, PyPy or IronPython
Instructions
-
Unpack the pycharm-*.tar.gz file using the following command:
tar xfz pycharm-*.tar.gz Run pycharm.sh from the bin subdirectory
特别是jdk要求，不支持openjdk，如何添加sunjdk的方法： Ubuntu下将OpenJDK换成SunJDK http://www.linuxidc.com/Linux/2012-10/71934.htm
添加完，记得要更改JAVA_HOME为sun的jdk路径
注册码：
EMBRACE
===== LICENSE BEGIN =====
14203-12042010
0000107Iq75C621P7X1SFnpJDivKnX
6zcwYOYaGK3euO3ehd1MiTT"2!Jny8
bff9VcTSJk7sRDLqKRVz1XGKbMqw3G
===== LICENSE END =====
PyCharm 的详细介绍：请点这里
PyCharm 的下载地址：请点这里