PyCharm 专业版 2019 图文安装教程
PyCharm 是一种 Python IDE，由著名的 JetBrains 开发的，可以帮助程序员节约时间，提高生产效率。
PyCharm 可以为我们节省大量时间，它能够管理代码，并完成大量其他任务，如 debug 和可视化等。
PyCharm 官网（英文）：https://www.jetbrains.com/pycharm/
PyCharm 官网（中文）：https://www.jetbrains.com/zh/pycharm/
PyCharm 下载：pycharm-professional-2019.2.5.dmg
PyCharm 安装（MacOS）：
PyCharm 分为专业版（收费，全部功能）和社区版（免费，功能阉割）
PyCharm 社区版是 PyCharm专业版的阉割版本，其仅提供一些PyCharm专业版的基础功能，不可进行python的web开发等工作。
PyCharm 社区版是免费的，所以免费版和社区版是一样的，区别于收费的专业版。
PyCharm 社区版除了一些功能（收费的专业版）没有以外，他是用来解决工作问题的，部分功能没法用，例如：Web开发、Python Web框架、Python的探查、远程开发能力、数据库和SQL支持。
如果你的学校有自己的教育邮箱，可以申请免费的更多工具和功能，用你的学生身份证明或者老师证明，然后可以让你免费使用。
PyCharm 专业版免费激活的四种方法
PyCharm 安装完成后，第一次打开，会提示激活，如下图：
激活方法1：激活码（Activation code） （推荐）
1、激活码1，有效期 2020-04-21 （可用，成功）
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2、激活码2，有效期 2019-11-06 （已过期）
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3、激活码3，有效期 2018-10-14 （已过期）
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说明：这里激活后，最好屏蔽掉每次开启 PyCharm 的激活码校验，步骤如下
修改hosts文件，添加下面一行配置（红色字体 ）到hosts文件，目的是屏蔽掉Pycharm对激活码的验证
如果遇到权限问题，可将hosts文件先复制出来修改后再覆盖原来的即可
0.0.0.0 account.jetbrains.com
1）Windows 的 hosts 路径：C:\Windows\System32\drivers\etc\hosts
# Additionally, comments (such as these) may be inserted on individual # lines or following the machine name denoted by a '#' symbol. # # For example: # # 102.54.94.97 rhino.acme.com # source server # 38.25.63.10 x.acme.com # x client host # localhost name resolution is handled within DNS itself. # 127.0.0.1 localhost # ::1 localhost #0.0.0.0 .psf #0.0.0.0 Mac #0.0.0.0 psf #0.0.0.0 psf 0.0.0.0 account.jetbrains.com
2）Linux / Unix 的 hosts 路径：sudo vim /etc/hosts
# Host Database # # localhost is used to configure the loopback interface # when the system is booting. Do not change this entry. ## 127.0.0.1 yg-mac.local localhost 255.255.255.255 broadcasthost ::1 yg-mac.local localhost 0.0.0.0 account.jetbrains.com
激活方法2：破解补丁 （推荐，好像只适用 PyCharm 的 Windows版）
PyCharm 专业版的方法有很多，最有效的两种:
一种是使用最新可用的注册激活码，请见上方的激活方法1
一种是使用破解补丁的方法，这种方法虽然麻烦点，但是基本是永久激活，一劳永逸。
使用破解补丁方法虽然麻烦，但是可用激活到2099年，基本上是永久激活了，毕竟在座各位能活到这个年份也是寥寥无几了吧
1、下载专业版
PyCharm-Professional-2018.3.3 ，提取密码：3y8o
说明：内含专业版、社区版，仅专业版需激活授权
2、安装 PyCharm
3、拷贝补丁
将破解补丁文件 JetbrainsCrack-release-enc.jar 放置到 pycharm 程序安装目录 bin 目录下
目录 bin 的完整路径：C:\Program Files\JetBrains\PyCharm 2018.3.3\bin\
4、修改配置
修改步骤3中的两个配置文件：pycharm.exe.vmoptions 和 pycharm64.exe.vmoptions
在两个文件最后追加 -javaagent:盘符:\你的pycharm的安装路径\bin\JetbrainsCrack-release-enc.jar
完整的补丁配置：-javaagent:C:\Program Files\JetBrains\PyCharm 2018.3.3\bin\JetbrainsCrack-release-enc.jar
修改两个配置文件，例如：pycharm.exe.vmoptions
-server -Xms128m -Xmx512m -XX:ReservedCodeCacheSize=240m -XX:+UseConcMarkSweepGC -XX:SoftRefLRUPolicyMSPerMB=50 -ea -Dsun.io.useCanonCaches=false -Djava.net.preferIPv4Stack=true -Djdk.http.auth.tunneling.disabledSchemes="" -XX:+HeapDumpOnOutOfMemoryError -XX:-OmitStackTraceInFastThrow -javaagent:C:\Program Files\JetBrains\PyCharm 2018.3.3\bin\JetbrainsCrack-release-enc.jar
说明：一定要把 pycharm安装路径写正确，失败都是因为这步没有做好，最后记得一定要保存！
5、激活验证 （验证失败，根本就打不开 PyCharm）
启动Pycharm软件，选择激活码激活，输入下面内容即可，永久激活了！
正确的话，正常如下如（有效期为 2019-04-26）：
本文配置补丁不成功，初步判定是因为补丁有效期为 2019-04-26 ，而本教程配置是 2019-11-22 ，怀疑是补丁过期了，导致不成功
因此，综合激活方法1、2，激活的有效期 ，非常重要，非常重要，非常重要！
成功请见激活方法1，有效期 2020-04-21，唯一成功的一次！
激活方法3：服务器授权激活
PyCharm 安装完后，选择 License server，适合集团和大公司批量采购的授权
激活方法4：学校学生邮箱激活（用户名、密码激活）
学校学生邮箱激活，属于用户名 + 密码激活方式，即如下图：
获取授权，请查看购买特别方式：https://www.jetbrains.com/pycharm/buy/#discounts
如上说明，如果你是在校大学生、老师、研究生、科研人员，可用大学校园邮箱，申请 JetBrains 全套免费的产品使用
学校学生科研人员申请免费使用入口：https://www.jetbrains.com/shop/eform/students
PyCharm 常见错误
1、PyCharm 重装后无法打开
问题：PyCharm 在MacOS上安装后（修改过 pycharm.vmoptions ），卸载，再重新安装，结果无法打开
分析：查看 /Users/homer/Library/Preferences/PyCharm2019.2/pycharm.vmoptions 文件，发现之前修改过配置文件，添加了最后一行，导致无法打开
# cat /Users/homer/Library/Preferences/PyCharm2019.2/pycharm.vmoptions -Xms128m -Xmx2048m -XX:ReservedCodeCacheSize=240m -XX:+UseCompressedOops -Dfile.encoding=UTF-8 -XX:+UseConcMarkSweepGC -XX:SoftRefLRUPolicyMSPerMB=50 -ea -XX:CICompilerCount=2 -Dsun.io.useCanonPrefixCache=false -Djava.net.preferIPv4Stack=true -Djdk.http.auth.tunneling.disabledSchemes="" -XX:+HeapDumpOnOutOfMemoryError -XX:-OmitStackTraceInFastThrow -Djdk.attach.allowAttachSelf -Dkotlinx.coroutines.debug=off -Djdk.module.illegalAccess.silent=true -Xverify:none -XX:ErrorFile=$USER_HOME/java_error_in_pycharm_%p.log -XX:HeapDumpPath=$USER_HOME/java_error_in_pycharm.hprof -javaagent:/Applications/PyCharm.app/Contents/bin/JetbrainsCrack-2.6.10-release-enc.jar
解决：删除最后一行之前安装后配置的 ，便可以正常打开了
删除掉： -javaagent:/Applications/PyCharm.app/Contents/bin/JetbrainsCrack-2.6.10-release-enc.jar
附加：如上若打不开，可以直接进入安装目录打开，如下：
bash-3.2# cd /Applications/PyCharm.app/Contents/MacOS/ bash-3.2# ./pycharm 2019-11-22 12:00:12.377 pycharm[2217:24750] allVms required 1.8*,1.8+ 2019-11-22 12:00:12.380 pycharm[2217:24755] Value of PYCHARM_VM_OPTIONS is (null) 2019-11-22 12:00:12.380 pycharm[2217:24755] fullFileName is: /Applications/PyCharm.app/Contents/bin/pycharm.vmoptions 2019-11-22 12:00:12.380 pycharm[2217:24755] fullFileName exists: /Applications/PyCharm.app/Contents/bin/pycharm.vmoptions 2019-11-22 12:00:12.380 pycharm[2217:24755] Processing VMOptions file at /Applications/PyCharm.app/Contents/bin/pycharm.vmoptions 2019-11-22 12:00:12.381 pycharm[2217:24755] Done OpenJDK 64-Bit Server VM warning: Option UseConcMarkSweepGC was deprecated in version 9.0 and will likely be removed in a future release.
参考推荐：
Eclipse 搭建 Python+Django开发web网站
Python Web框架Django，Pylons，Bottle，Tornado，Quixote等浅谈
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