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Sunday, June 26, 2016

How To:Set python virtual environment as python interpreter in eclipse

In this lesson we 'll set virtual env as default interpreter in pydev eclipse project.

1). In PyDev Package Explorer panel, right click on project name and select Properties, a new window will open.

2). Click PyDev - Interpreter/Grammar -> Click here to configure an interpreter not listed, a new window will open.

3). Click PyDev -> Interpreters -> Python Interpreter on left panel.

4). In Python Interpreters section click New -> Browse

5). Open virtual environment folder, move to Scripts folder, select python.exe file and click Open.

6). Enter venv in Interpreter Name: instead of default value and click Ok. You can choose name of your own choice.

7). Select newly added python interpreter iPython Interpreters section and click OK

8). Now select newly added python interpreter under Interpreter drop down list and click OK.

How To:Import python project in eclipse

In this lesson we 'll import python django project in pydev eclipse.
Copy these two files from some existing pydev eclipse project to root folder of new project which you want to import in eclipse.
.project
.pydevproject

Open .project file in notepad and change name to your_project_name.
If you don't have these files then you can create them yourself.


Open notepad, copy following text, click File -> Save As... -> Enter ".project" in File name: -> Select All Files from Save as type: drop down list.


<?xml version="1.0" encoding="UTF-8"?>
<projectDescription>
<name>your_project_name</name>
<comment></comment>
<projects>
</projects>
<buildSpec>
<buildCommand>
<name>org.python.pydev.PyDevBuilder</name>
<arguments>
</arguments>
</buildCommand>
</buildSpec>
<natures>
<nature>org.python.pydev.django.djangoNature</nature>
<nature>org.python.pydev.pythonNature</nature>
</natures>
</projectDescription>

Now again open notepad, copy following text, click File -> Save As... -> Enter ".pydevproject" in File name: -> Select All Files from Save as type: drop down list.


<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<?eclipse-pydev version="1.0"?><pydev_project>
<pydev_variables_property name="org.python.pydev.PROJECT_VARIABLE_SUBSTITUTION">
<key>DJANGO_MANAGE_LOCATION</key>
<value>manage.py</value>
</pydev_variables_property>
<pydev_pathproperty name="org.python.pydev.PROJECT_SOURCE_PATH">
<path>/${PROJECT_DIR_NAME}</path>
</pydev_pathproperty>
<pydev_property name="org.python.pydev.PYTHON_PROJECT_VERSION">python 3.0</pydev_property>
<pydev_property name="org.python.pydev.PYTHON_PROJECT_INTERPRETER">Default</pydev_property>
</pydev_project>

Open eclipse, click File -> Import. New window will open. Now select 'Existing Projects into Workspace' under 'General' and click Next. On new window browse to project root directory and select root folder. Then click finish.

Saturday, June 25, 2016

How To:Create virtual python environment and Install pypi packages in window env

In this lesson we 'll create virtual environment for our python project and install all necessary packages from pypi though cmd, which 'll used in our project.

1). Open directory where you want to create virtual environment.

2). Open cmd in same directory by clicking shift + mouse right key and then select 'open command window here'.


3). Install virtual environment by running following command in cmd. If virtual environment already installed then skip this step.


pip install virtualenv

4). Type following command in cmd and press enter. It will create virtual environment. 


virtualenv env

You can see a new folder is added with name env. You can change name of virtual environment to your own choice, just change the env to Your_Own_Name in later part of command.

5). Now type this command in cmd and press enter. Virtual environment will be activated.


env\scripts\activate

You can see (env) in start of line in cmd.

6). Now we 'll install all necessary package from pypi, which 'll be used in our project. Run following commands in cmd.


pip install django
pip install djangorestframework
pip install django-oauth-toolkit
pip install pymysql
pip install pythondbhelper


Now virtual environment is ready with all necessary pypi packages.

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