Ubuntu安装PyCharm
2016-07-20 10:33
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1. 下载
http://www.jetbrains.com/pycharm/download/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.
打开pycharm.ch文件查看,发现报错的地方在:
message() { TITLE ="Cannot start PyCharm" if [ -t 1 ]; then echo "ERROR: $TITLE\n$1" elif [ -n `which zenity` ]; then zenity --error --title="$TITLE" --text="$1" elif [ -n `which kdialog` ]; then kdialog --error --title "$TITLE" "$1" elif [ -n `which xmessage` ]; then xmessage -center "ERROR: $TITLE: $1" elif [ -n `which notify-send` ]; then notify-send "ERROR: $TITLE: $1" else echo "ERROR: $TITLE\n$1" fi } # --------------------------------------------------------------------- # Locate a JDK installation directory which will be used to run the IDE. # Try (in order): PYCHARM_JDK, JDK_HOME, JAVA_HOME, "java" in PATH. # --------------------------------------------------------------------- if [ -n "$PYCHARM_JDK" -a -x "$PYCHARM_JDK/bin/java" ]; then JDK="$PYCHARM_JDK" elif [ -n "$JDK_HOME" -a -x "$JDK_HOME/bin/java" ]; then JDK="$JDK_HOME" elif [ -n "$JAVA_HOME" -a -x "$JAVA_HOME/bin/java" ]; then JDK="$JAVA_HOME" else JAVA_BIN_PATH=`which java` if [ -n "$JAVA_BIN_PATH" ]; then if [ "$OS_TYPE" = "FreeBSD" -o "$OS_TYPE" = "MidnightBSD" ]; then JAVA_LOCATION=`JAVAVM_DRYRUN=yes java | "$GREP" '^JAVA_HOME' | "$CUT" -c11-` if [ -x "$JAVA_LOCATION/bin/java" ]; then JDK="$JAVA_LOCATION" fi elif [ "$OS_TYPE" = "SunOS" ]; then JAVA_LOCATION="/usr/jdk/latest" if [ -x "$JAVA_LOCATION/bin/java" ]; then JDK="$JAVA_LOCATION" fi elif [ "$OS_TYPE" = "Darwin" ]; then JAVA_LOCATION=`/usr/libexec/java_home` if [ -x "$JAVA_LOCATION/bin/java" ]; then JDK="$JAVA_LOCATION" fi fi if [ -z "$JDK" -a -x "$READLINK" -a -x "$XARGS" -a -x "$DIRNAME" ]; then JAVA_LOCATION=`"$READLINK" -f "$JAVA_BIN_PATH"` case "$JAVA_LOCATION" in */jre/bin/java) JAVA_LOCATION=`echo "$JAVA_LOCATION" | "$XARGS" "$DIRNAME" | "$XARGS" "$DIRNAME" | "$XARGS" "$DIRNAME"` if [ ! -d "$JAVA_LOCATION/bin" ]; then JAVA_LOCATION="$JAVA_LOCATION/jre" fi ;; *) JAVA_LOCATION=`echo "$JAVA_LOCATION" | "$XARGS" "$DIRNAME" | "$XARGS" "$DIRNAME"` ;; esac if [ -x "$JAVA_LOCATION/bin/java" ]; then JDK="$JAVA_LOCATION" fi fi fi fi if [ -z "$JDK" ]; then message "No JDK found. Please validate either PYCHARM_JDK, JDK_HOME or JAVA_HOME environment variable points to valid JDK installation." exit 1 fi
说明没有找到JDK location path。需要安装并配置JDK了。
3. 安装JDK
首先查了一下Ubuntu12.04是否支持JDK8,发现还是支持的。那就放心安装吧。参照【3】的方法,通过设置源仓库的方式安装。(如果想手动安装,请参考【5】【6】)
Important: This PPA supports Ubuntu 14.04, 13.10, 12.04 and 10.04 as well as the corresponding Linux Mint versions. Ubuntu 13.04 and 12.10 are no longer supported by Canonical
(1)返回到Home目录:“~”,然后依次执行一下几条command
sudo add-apt-repository ppa:webupd8team/java sudo apt-get update sudo apt-get install oracle-java8-installer
安装过程中会跳出Oracle license对话框,选择接受就是了。
(2)安装完成后,运行”java -version”或者”javac -version”查看是否安装成功。如果得到类似如下的输出,表明安装成功了。
$ java -version java version "1.8.0_20" Java(TM) SE Runtime Environment (build 1.8.0_20-b26) Java HotSpot(TM) 64-Bit Server VM (build 25.20-b23, mixed mode) $ javac -version javac 1.8.0_20
(3) 在【3】中说道,如果想automatically set up the Java 8 environment variables,可以使用下面的command:
http://www.webupd8.org/2012/01/install-oracle-java-jdk-7-in-ubuntu-via.html
http://www.webupd8.org/2012/09/install-oracle-java-8-in-ubuntu-via-ppa.html
sudo apt-get install oracle-java8-set-default
我使用该command后,在Terminal中运行 echo $JAVA_HOME,没有任何输出。看来是没起什么作用。有可能是在一开始配置完repository后,安装时使用该条命令,可以以后尝试一下。
UPDATED: 使用 sudo apt-get install oracle-java8-set-default,测试echo $JAVA_HOME,仍然是没有$JAVA_HOME环境变量的。还是需要手动设置。
由于一些程序在运行时可能默认需要 $JAVA_HOME 环境变量,因此还是需要设置一下环境变量的。
4. 配置$JAVA_HOME 环境变量
参考【4】中 Setting the “JAVA_HOME” environment variable 一节进行设置。(1)Find out the path of your Java installation:
sudo update-alternatives --config java
它将返回类似如下的结果,列出了本机所安装的所有Java运行时环境JRE。(共有2个:JDK7和OpenJDK6,0和2是同一个,auto mode和manual mode的差别)
复制代码
There are 2 choices for the alternative java (providing /usr/bin/java). Selection Path Priority Status ------------------------------------------------------------ * 0 /usr/lib/jvm/java-7-oracle/jre/bin/java 1062 auto mode 1 /usr/lib/jvm/java-6-openjdk-amd64/jre/bin/java 1061 manual mode 2 /usr/lib/jvm/java-7-oracle/jre/bin/java 1062 manual mode Press enter to keep the current choice[*], or type selection number:
复制代码
对应的各个JRE的 安装路径分别为:
/usr/lib/jvm/java-7-oracle
/usr/lib/jvm/java-6-openjdk-amd64
/usr/lib/jvm/java-7-oracle
在我本机 执行 sudo update-alternatives –config java 的结果为:
Selection Path Priority Status ------------------------------------------------------------ 0 /usr/lib/jvm/java-8-oracle/jre/bin/java 1 auto mode * 1 /usr/lib/jvm/java-8-oracle/jre/bin/java 1 manual mode Press enter to keep the current choice[*], or type selection number:
可见只安装了一个Java环境: JDK8。它对应的安装路径为:
/usr/lib/jvm/java-8-oracle
(2)编辑/etc/environment文件
sudo nano /etc/environment
复制上面的路径 /usr/lib/jvm/java-8-oracle,添加如下一行
JAVA_HOME="/usr/lib/jvm/java-8-oracle"
(3) Reload该文件,使之立即生效,而不必注销并重新登录
source /etc/environment
(4)使用下面的命令测试
echo $JAVA_HOME
会输出刚才所设置的路径 /usr/lib/jvm/java-8-oracle。
5. 再次安装PyCharm
(1)cd到Downloads/pycharm-community-3.4.1/bin/目录,执行./pycharm.sh。询问是否导入settings,选择不导入->OK后面省略了就。。。
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