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
1024×768 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 =====14203-120420100000107iq75c621p7x1sfnpjpknx6zcwyoyagk3euo3ehd1mitt”2!jny8bff9vctsjk7srdlqkrvz1xgkbmqw3g===== license end =====
pycharm 的详细介绍：请点这里pycharm 的下载地址：请点这里