Skip to main content

Python Basics - creating virtual environment and activating

 Creating virtual environment in Python is quite important thing to know if you are venturing to the world of Python Programming.

Virtual Environment in Python may sound complicated at first if you haven't played around it.

Let's delve into it. Why do we need a virtual environment? When we can just installed Python directly to the system.

One good thing for creating Python virtual environment, is you can have multiple environments on Python on your system and also different versions.

If 2 or 3 people are using the same server or computer, it won't be ideal that each person will use same environment and mess up the work of the other person.

And also if your coding is good for a specific version of Python, the syntax may not work on new versions of Python and this is where virtual environment comes into the scenario.

How do we create a virtual environment in Python?

It's quite straight forward, here's the command. Of course this assumes that Python has been installed and ready to be use in your system.

python3 -m venv /home/your-name/whatever_name_of_the_virtual_python_env

The path is not restricted to your home directory it could be in /usr/local/bin or anywhere in your Linux environment.

Screenshot below shows how to create a virtual Python environment.

Right after creating the virtual environment, you can use the "cd" or change directory command and access the newly created virtual environment.


Screenshot below shows the contents of the virtual environment.

Find the "bin" folder, cd to the bin folder and on this folder you can find the "activate" command.

By using the "activate" command, it would mean that the specific folder or path to the Python virtual environment is the currently active Python environment. Of course, the "deactivate" command is the way to disable or deactivate the current environment.


Screenshot below shows how you can activate the created Python Virtual Environment.
It must point to the "bin" folder where the "activate" command is located.
Of course, aliases in Linux system is the best way to do this and forget the path and just run a single alias to activate the environment which can be set in our bashrc profile in your Linux system.


Once the virtual environment is activated, then you can start doing your task or explore Python programming on that specific virtual environment.

This link shows more info on how to delve into virtual environment in Python: https://docs.python.org/3/library/venv.html

Once activated, you can enter commands to check if the environment is ready and you can embark to create awesome applications in Python.
Please see screenshot below:



Enjoy the world of Python!!!


Stay safe! and Keep things up! 

Do ASAP, Always Say A Prayer...

Practice O.T.G. = Obedience To God

Make time for Prayer and Meditation.

Take time to kneel down and Pray!

================================

Free Android Apps:

Click  links below to find out more:

Free Android Apps:

Click  links below to find out more:

Excel Keyboard guide:

https://play.google.com/store/apps/details?id=chrisjoms.myexcelapplicationguide

Heaven's Dew Fall  Prayer app for Android :

https://play.google.com/store/apps/details?id=soulrefresh.beautiful.prayer

Catholic Rosary Guide  for Android:

Pray the Rosary every day, countless blessings will be showered upon your life if you recite the Rosary faithfully. 

https://play.google.com/store/apps/details?id=com.myrosaryapp

Divine Mercy Chaplet Guide (A Powerful prayer) BFF = Be Filled Faith:

https://play.google.com/store/apps/details?id=com.dmercyapp   

Labels:

Comments

Post a Comment

Popular posts from this blog

WMIC get computer name

WMIC get computer model, manufacturer, computer name and  username. WMIC is a command-line tool and that can generate information about computer model, its manufacturer, its username and other informations depending on the parameters provided. Why would you need a command line tool if there’s a GUI to check? If you have 20 or 100 computers, or even more. It’s quite a big task just checking the GUI to check the computer model and username. If you have remote computers, you need to delegate someone in the remote office or location to check. Or you can just write a batch file or script to automate the task. Here’s the code below on how get computer model, manufacturer and the username. Open an elevated command prompt and type:     wmic computersystem get "Model","Manufacturer", "Name", "UserName" Just copy and paste the code above, the word “computersystem” does not need to be change to a computer name. A...
Post a Comment
Read more

Print error 016-799 - Fuji Film Xerox

016-799 Fuji Xerox or Fuji Film print error code. That shows a description error as “Print instruction Fail detected in decomposer.” The error code and error description are alien languages for users and even system administrators who are not familiar with Fuji Xerox error code. The error code is quite simple and easy to fix, if the job print goes to the printer but print out doesn’t come out. So, basically the print job was received by the printer, but the printer just doesn’t know what type of paper or what size to use or which tray to utilize for the print out. In some instances, this is just a paper mismatch but the error description; if using Windows 10 to print does not exactly points to what is the issue. First thing to check, is the paper size selected by the user to print. Example, if the printer configuration is A3 and A4 sizes only. But then the person printing the file accidentally chooses “A4 Cover” then this error 016-799 will occur. ...
6 comments
Read more

Notepad++ convert multiple lines to a single line and vice versa

Notepad++ is an awesome text editing tool, it can accept regex to process the text data. If the data is in a “.csv” format or comma separated values which is basically just a text file that can either be opened using a text editor, excel or even word. Notepad++ can process the contents of the file using regex. Example if the data has multiple rows or lines, and what is needed is to convert the whole lines of data into a single line. Notepad++ can easily do it using regex. However, if the data is on a single line and it needs to be converted into multiple lines or rows then regex can also be used for this case. Here’s an example on how to convert multiple rows or lines into a single line. Example data: Multiple rows, just a sample data. Press Ctrl+H, and  on "Find what" type: [\r\n]+ and on "Replace with" type with: , (white space) --white space is needed if need to have a space in between the data. See image below, "Regular Expression" must be se...
1 comment
Read more