Virtual Environments

Installing Virtualenv

Assuming python 3 it is already installed as well as pip we can start in this way:

pip install virtualenv

Creating the Virtual Environment

Now we can select the directory where we are going to save the virtual environment, in this example we will use the directory "/Users/victoraguirre/Documents/026.workspace_Python", and we can provide a name for it ( virtual environment), in this case i will choose virtualEnv000

virtualenv -p python3 /Users/victoraguirre/Documents/026.workspace_Python/virtualEnv000

Activate environments

now a Folder with the name of the environment it is going to be created, the first step to activate the environment will be to navigate to that folder

and later call the activate file that is inside the bin directory

// on Mac
cd /Users/victoraguirre/Documents/026.workspace_Python/virtualenv
source bin/activate

// On windows
call /Users/victoraguirre/Documents/026.workspace_Python/virtualenv
source bin/activate.bat

As part of this exercise I will install Flask inside this virtual environment

Install packages and create a file

now lets install flask

pip install flask

here the basic code for a page in flash

now running

python app.py

we have the server running ans the website up ( default IP http://127.0.0.1:5000)

Deactivate environment

Now, to stop the environment we just need to type deactivate