How to Create Virtual Environment in Python 2.7

Virtual Environment is an environment where the developers or programmers can avoid the global dependency of library packages installed in python. Virtual environments are effective when, the software has to be shipped as whole without creating any dependency issues.

Here we can learn about how to create Virtual environment using CMD (multi-step) and Pycharm(quicker 🙂 ). Lets go!

CMD:

1. Installing Virtual Environment type: “pip install virtualenv“

2. Verify installed version using “python -m virtualenv –version“

3. Now lets create a folder as a virtual environment, by “python -m virtualenv <foldername>“, eg: “python -m virtualenv pandatesting“

4. We can activate the environment by, go to Scripts folder available in virtual environment and run “activate.bat”

5. Let try installing a package inside the virtual environment. “pip install pandas“

6. OK, but if I want to install multiple packages and even some with particular version, how could I do it.. Hmm.. the answer is requirement. Lets see the snip of how requirements looks like,

Now copy the file to virtual folder and install using below command “pip install -r requirements.txt“

Now the Virtual environment is ready for you!

Pycharm

Now, lets do the quicker way using pycharm,

1. Create a new project in pycharm

2. Create Virtual Environment using PyCharm

3. You can see the virtual environment is created and now you can add requirements.txt

4. When you open a requirements.txt, you could see the package requirement inspection (image of bulb) pops up and give you the status of package installed.