Eclipse PyDev anaconda环境 搭建 以及切换不同的python版本

一、先安装anaconda3，目前默认的环境是python3.6,然后在里面安装环境，

打开anaconda prompt输入：

conda create -n py2.7 python=2.7

# To activate this environment, use
#
# $ conda activate py2.7
#
# To deactivate an active environment, use
#
# $ conda deactivate

二、 Eclipse  安装  pyDev ,  注意JDK和Eclipse版本对PyDev的支持

https://www.pydev.org/manual_101_install.html

使用Eclipse市场安装，会出现

An error occurred while collecting items to be installed
session context was:
(profile=D__Users_MC_eclipse_java-2020-03_eclipse, phase=org.eclipse.equinox.internal.p2.engine.phases.Collect, operand=, action=).
Unable to read repository at https://dl.bintray.com/fabioz/pydev/7.5.0/plugins/org.python.pydev.ast_7.5.0.202001101138.jar.
Read timed out
Unable to read repository at https://dl.bintray.com/fabioz/pydev/7.5.0/plugins/org.python.pydev.parser_7.5.0.202001101138.jar.
Read timed out

使用  Install New Software

http://www.pydev.org/updates

可以安装

三、配置

https://stackoverflow.com/questions/30970697/eclipse-pydev-project-interpreter-not-specified

 Preferences -> PyDev -> Interpreters -> Python Interpreter -> New

四、 hello world

创建project

创建 编程目录src 

 编写程序及运行 

五、其它

eclipsepydev出现badindentationwarning_dlhlSC的博客-CSDN博客_badindentation
https://blog.csdn.net/dlhlSC/article/details/73018218

5个功能强大的Python IDE，用于编写分析和数据科学代码
https://www.analyticsvidhya.com/blog/2020/06/5-python-ide-analytics-data-science-programming/