Python 3.7 On Ubuntu 20.04

apt

sudo apt update

sudo apt install python3.7

The table above summarizes key points about Python 3.7 installation on Ubuntu 20.04 LTS. Ubuntu long-term support versions have a significant advantage in terms of ongoing updates and security patches. When using Python 3.7 with Ubuntu 20.04, you’re assured to be working with a stable and consistently updated environment, ideal for all your coding projects.

Installing Python 3.7 on Ubuntu 20.04 LTS falls within intermediate Linux know-how. The most straightforward method is utilizing the official Ubuntu repository, a comprehensive platform developed and maintained by Canonical. To acquire Python 3.7 from the repository, one doesn’t need extensive knowledge; a handful of terminal commands are all it takes.

You need the

apt

package manager along with Python software properties. The

apt

package manager is a free software user interface that works with core libraries to manage packages on Ubuntu. It simplifies the process of managing software on Unix-like computer systems.

Below is a typical sequence of terminal commands for this installation:

sudo apt update
sudo apt install software-properties-common
sudo add-apt-repository ppa:deadsnakes/ppa
sudo apt update
sudo apt install python3.7

Once done correctly, running the command

python3.7 --version

should confirm the successful installation. This high-level overview lays out the essentials of setting up Python 3.7 on Ubuntu 20.04 LTS, enabling coders to start building their codebase without unnecessary hitches.Sure thing!

Python, a high-level, interpreted programming language, has an incredibly versatile range of applications. Most notable is its use in web development, AI projects, data science, and even building productivity tools.

For Ubuntu 20.04 users, it’s pertinent to note that Python comes pre-installed with the OS. However, you will likely find that it’s an older version than Python 3.7.

To install Python 3.7 on your Ubuntu 20.04 system, follow this analytical guide:

First, there’s a need to update the package lists for upgrades and new package installations. This is done using the command

sudo apt update

.

Next, you install Python3.7 by entering the following command:

sudo apt install python3.7

.

If you are curious about what version of Python you now have installed, simply run:

python3 -V

. Your terminal should display the specific version of Python installed on your system.

For more comprehensive software management, you might want to consider using pyenv, a fantastic tool that helps manage multiple Python versions. Install pyenv using the following command:

sudo apt install -y make build-essential libssl-dev zlib1g-dev libbz2-dev libreadline-dev libsqlite3-dev wget curl llvm libncurses5-dev libncursesw5-dev xz-utils tk-dev libffi-dev liblzma-dev python-openssl git

Upon successful installation of all dependencies, you can then install pyenv through a curl command:

curl https://pyenv.run | bash

With pyenv successfully set up, you can install any Python version you prefer. If you specifically need Python 3.7.x, then you use the command:

pyenv install 3.7.x

It’s crucial to ensure that you replace the ‘x’ with the minor version number you need.

At this point, you should be able to execute Python 3.7 scripts on your Ubuntu 20.04 machine without much hassle.

But here’s a tip; did you know you can write your coding project in Python 3.7 while running your system’s utilities on the original Python version? Pyenv helps you configure this by allowing you to set the local Python version. Set it by navigating towards your project directory and run:

pyenv local 3.7.x

Note:

• The

  apt

  command could be replaced by

  apt-get

  depending on your Debian or Ubuntu version.

• The commands above require superuser permissions. Make sure you are operating as a superuser, or prepend each command with

  sudo

  .

• If you opt to use pyenv, remember it doesn’t change the global Python version. If you wish to utilize Python 3.7 as your standard Python interpreter, use the command

  pyenv global 3.7.x

For a hands-on, interative guide for installing Python on different operating systems, refer to Real Python’s tutorial here.

Hopefully, this elaborative guide supports your coding journey by helping you understand how to install Python 3.7 on Ubuntu 20.04. Remember, a journey of a thousand lines of code begins with the right setup! Happy coding!

Python 3.7 configuration on Ubuntu 20.04 could present a few challenges. However, some common issues can be easily resolved with the right knowledge. Here are some typical problems you might encounter and their solutions.

Trouble Installing Python on Ubuntu

This problem usually arises due to missing dependencies or package clashes. The best solution is to ensure that all your packages are up-to-date by using:

$ sudo apt update
$ sudo apt upgrade

Then try installing Python 3.7 again. You can do this by typing:

$ sudo apt install python3.7

If the installation is successful, verify by checking the Python version:

$ python3.7 --version

Mismatched Python Default Version

In some cases, different versions of Python may cause uneasiness when dealing with programs that require a specific version. Specifically, on Ubuntu 20.04, the default Python version is 3.8. If you need Python 3.7 as your default, you’ll need to make changes accordingly. This can be done easily via ‘update-alternatives’ command:

$ sudo update-alternatives --install /usr/bin/python3 python3 /usr/bin/python3.7 1

This will set Python 3.7 as your default Python version.

ModuleNotFoundError: No Module Named ‘XYZ’

Sometimes after setting up Python 3.7, you might want to run a script but then you get an error that some modules are not found even though you have them installed. The reason for this error is that the script is being run by a different version of Python which does not have those modules installed. To rectify this, specifically call Python 3.7 when running the script like so:

$ python3.7 script.py

But if the modules are indeed missing, you can use pip to install Python 3.7 modules. First, install pip for Python 3.7:

$ sudo apt install python3.7-distutils
$ curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py
$ python3.7 get-pip.py

Then use pip to install the required module:

$ pip install module-name

By addressing these common issues, configuring Python 3.7 becomes much smoother. Still, in software setup, sometimes unique problems arise. Online platforms like StackOverflow and Python’s official documentation can offer more detailed assistance for those unique situations.

Moving along on our journey with Python, it becomes essential for us to delve into the benefits of using Python 3.7 in Ubuntu 20.04. Python has released multiple versions, and each brings its own set of features and changes that make it a favourite among programmers. Among these iterations, Python 3.7 holds a special place because of many reasons that I will elucidate below.

Python 3.7 is preferred by coders due to its significant improvements over the previous versions. The value of support and stability it provides to developers, especially on an LTS (Long Term Support) Ubuntu version such as 20.04, can’t be understated.

See also

Linux

In A Github Actions Workflow

• Compatibility: Python 3.7 comes with enhanced compatibility features. Its forward compatibility feature allows the code written in Python 3.7 to run in any later versions of Python without any modifications.

  The code written will look something like this:

  def greetings(name):
     return f"Hello, {name}!"
  print(greetings("World"))
  

• Data Classes: This is perhaps one of the inherent advantages of Python 3.7. Data classes reduce the amount of boilerplate code you have to write when creating classes which essentially are containers for data.

  An example of utilizing Data Classes would be:

  from dataclasses import dataclass
  @dataclass
  class User:
      name: str
      age: int
      country: str
  user1 = User("John Doe", 30, "United States")
  print(user1.name)
  

• Postponed Evaluation of Type Annotations: With Python 3.7, the evaluation of type hints can be postponed until runtime. This resolves a lot of reference issues seen in previous versions of Python where complete types couldn’t be expressed at the point of definition.

  Here is what defining a variable with Postponed Evaluation of Type Annotations looks like:

  from __future__ import annotations
  def greet_all(names: List[str]):
      for name in names:
          print(f'Hello, {name}!')
  

• Built-in breakpoint() function: Debugging in Python has been made easier because of Python 3.7’s new built-in function breakpoint() which means you no longer need to import pdb or set_trace() functions separately for debugging.

  The code needed for executing the built-in breakpoint function goes like this:

  def add_values(a, b):
      breakpoint() # debug from here
      return a + b
  add_values(5, 6)
  

Overall, transitioning to Python 3.7 on Ubuntu 20.04 could save a lot of time due to enhancements in simplicity, utility, and consistency. For further reference here is the detailed overview provided by Python docs itself. Hence, if you haven’t used Python 3.7 and you’re considering an upgrade, don’t hold back! There are a plethora of advantages waiting for you on the other side.
Developing with Python 3.7 in your Ubuntu environment can be a powerful tool for a multitude of applications. It’s essential to first appreciate the advancements Python has made with its current version. Python 3.7 brings along many significant improvements from its past versions, like enhancements in performance, data classes, context variables and more.

Upgrading to Python 3.7 On Ubuntu

If you’re working on Ubuntu 20.04 but Python 3.7 isn’t installed on your system, it can easily be accomplished via the terminal. Though, note, Python 3.8 comes pre-installed with Ubuntu 20.04 by default. However, if your applications require Python 3.7 specifically, it can be installed as follows:

sudo apt update
sudo apt install software-properties-common
sudo add-apt-repository ppa:deadsnakes/ppa
sudo apt update
sudo apt install python3.7

You can verify the installation using the command:

python3.7 --version

After the setup, we can start leveraging the power of Python 3.7 in our Ubuntu environment.

Data Analysis Applications

Python 3.7 provides excellent support for data analysis. Libraries like Pandas, NumPy and SciKit-Learn are renowned for their robustness in handling and analyzing data. The efficiency is greatly improved using Python 3.7 due to its execution speed improvements over previous versions.

Web Scraping Applications

Web scraping is another area where Python shines brightly. Python 3.7, alongside libraries such as Beautiful Soup or Scrapy, makes this process much simpler and efficient too.

from bs4 import BeautifulSoup
import requests

URL = "https://example_website.com"
res = requests.get(URL)
soup = BeautifulSoup(res.text, 'html.parser')
example_data = soup.find_all('div', {'class': 'example_class'})

This example demonstrates how simple it’s to scrape a webpage using Python 3.7.

Backend Web Development Applications

A practical application that leverages Python’s power is backend web development with frameworks like Django or Flask. Python 3.7’s async functionality aids developers in writing cleaner asynchronous code, without sacrificing readability.

In sum, Python 3.7 in Ubuntu Environment opens up numerous opportunities for developers across various fields. This, coupled with Python’s simplicity and readability, places it among top choices for professional programming.

Without a doubt, wrapping up our journey of installing Python 3.7 on Ubuntu 20.04, I’m brimming with enlightening insights and an enriched knowledge base. Let’s discuss what we’ve learned and explored!

Installing Python 3.7 on Ubuntu 20.04 is not just hassle-free but also a vital measure in today’s technological era where Python is widely adopted due to its numerous applications^[source] (Python Applications). By executing a few commands which can be found below:

sudo apt update
sudo apt install software-properties-common 
sudo add-apt-repository ppa:deadsnakes/ppa 
sudo apt update 
sudo apt install python3.7 

This speaks of the simple yet powerful nature of open-source systems like Ubuntu and versatile languages like Python, a thought-provoking combination that leads us to think deeper into their interoperability.

The multitude of applications of Python 3.7 cannot be overstressed, uniting fields from artificial intelligence through machine learning to data analytics and web development. And running Python on Ubuntu 20.04 – an advanced, secure, and fast OS – enhances productivity and fosters innovation, transparently testifying to its growing preference among coders, data scientists, and tech enthusiasts.

That being said, you may perfectly hit a roadblock while installing or upgrading Python 3.7 on Ubuntu 20.04, especially if you’re venturing into this territory for the first time – quite a common scenario. To assist in such cases, there are vast resources available online. Websites like Stack Overflow^[source] (Stack Overflow Python Questions) might help you troubleshoot any issues during your installation process, effectively saving your precious coding hours.

In general, Python 3.7 on Ubuntu 20.04 is a convincing duo, proving its worth across distinct verticals. I hope this information inspires you to delve deeper into this dynamic duo and helps to set a robust foundation for your upcoming coding ventures. Ultimately, exploring Python on Ubuntu and other open-source platforms will introduce you to the vibrant world of programming and equip you with keen problem-solving skills.