Add python setup tip

blog_posts/setup-python3-pip3-as-default.md

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+---
+title: "Tip: Set up Python 3 and pip 3 as default"
+type: tip
+tags: python
+authors: chalarangelo
+cover: blog_images/avocado-slices.jpg
+excerpt: A very common problem when working with Python is having to remember the correct version. Luckily, there's an easy fix for that.
+---
+
+One of the most common headaches when working with Python is having to remember to use Python 3.x instead of Python 2.x. Luckily, it's really easy to setup Python 3 and pip 3 as the defaults. You first need to figure out where each one is installed using the `which` command:
+
+```shell
+which python3   # /usr/local/bin/python3
+which pip3      # /usr/local/bin/pip3
+```
+
+Make a note of each response, so that you can add the paths as aliases to your shell environment's configuration file. Then, you can use `echo` to add a line for each one to either `.zshrc` or `.bashrc` depending on your environment:
+
+```shell
+# Linux or other bash environment
+echo "alias python=/usr/local/bin/python3" >> ~/.bashrc
+echo "alias pip=/usr/local/bin/pip3" >> ~/.bashrc
+
+# Mac OS or other zsh environment
+echo "alias python=/usr/local/bin/python3" >> ~/.zshrc
+echo "alias pip=/usr/local/bin/pip3" >> ~/.zshrc
+```
+
+And you're all done! `python` and `pip` are both mapped to their 3.x versions,
+
+**Image credit:** [Olga Zhushman](https://unsplash.com/@ori_photostory?utm_source=unsplash&utm_medium=referral&utm_content=creditCopyText) on [Unsplash](https://unsplash.com?utm_source=unsplash&utm_medium=referral&utm_content=creditCopyText)