1. 下载
选择Linux Tab，选择下载免费的Community Edition【1】。当前版本是3.4
2. 安装PyCharm
按照官网给出的安装指导【2】进行安装。
（1） Copy the pycharm-*.tar.gz to the desired installation location (make sure you have rw permissions for that directory)
$ cd Downloads/
（2）Unpack the pycharm-*.tar.gz using the following command: tar xfz pycharm-*.tar.gz
$ tar xfz pycharm-*.tar.gz
（3）Remove the pycharm-*.tar.gz to save disk space (optional)
$ rm pycharm-*.tar.gz
（4）Run pycharm.sh from the bin subdirectory
$ cd pycharm-community-3.4.1/bin/
$ ./pycharm.sh
但是安装开始，出现如下错误：
ERROR: Cannot start PyCharm
No JDK found. Please validate either PYCHARM_JDK, JDK_HOME or JAVA_HOME environment variable points to valid JDK installation.
