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+---
+layout: post
+title:  "Using RustPython with PyCharm and Visual Studio Code on macOS."
+date:   2021-12-02 01:45:00 +0900
+---
+
+For macOS, here is how you can setup RustPython as an interpreter for PyCharm and Visual Studio Code. 
+
+## Pre-requisites
+
+You will need:
+- The xcode command line tools from Apple
+- Rust [(instructions)](https://www.rust-lang.org/tools/install)
+
+Here are the commands to install them:
+
+- `xcode-select --install`
+- `curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh`
+
+(those might change over time)
+
+
+## Install RustPython
+
+First run:
+
+`cargo install --git https://github.com/RustPython/RustPython`
+
+If you want RustPython with ssl support, try:
+
+`cargo install --git https://github.com/RustPython/RustPython --features ssl`
+
+Go to Cargo's bin directory with `cd ~/.cargo/bin`. Run `ls`, you should see the binary `~/.cargo/bin/rustpython`.
+
+If you type `rustpython` at the terminal, you should get the welcome message:  
+![RustPython Welcome Message](/assets/media/rustpython-welcome.jpg)
+
+## Setup PyCharm
+
+In PyCharm, you can add an interpreter by using:
+- virtual environment
+- conda
+- pipenv 
+- system interpreter
+- poetry
+
+The full docs are on [this link](https://www.jetbrains.com/help/pycharm/configuring-python-interpreter.html). This blog post is for the two options: virtual environment and system interpreter.
+
+
+### System interpreter
+Go to "Add Python Interpreter" -> System Interpreter -> Click on the browse icon.
+
+![PyCharm add Interpreter](/assets/media/pycharm-add-interpreter-list.jpg)
+
+Navigate to `/Users/YOURUSERNAME/.cargo/bin` - selecting `rustpython` as the interpreter gives this error:
+
+![PyCharm add Interpreter](/assets/media/pycharm-rustpython-error.jpg)
+
+There is an easy fix. Create a link/shortcut called `python` that points to `rustpython`.
+
+```
+cd ~/.cargo/bin
+ln -s rustpython python
+```
+
+PyCharm is happy. Test out that things work by creating a python file in PyCharm and running 
+
+```python
+import sys
+print(sys.executable)
+```
+
+### Virtual environment 
+
+In the screen above, if you try to use the virtual option, you get this error.
+
+![venv error](/assets/media/pycharm-venv-error.jpg)
+
+However, you can still manually create the virtual environment. First, create a directory, cd into into it and run:
+ `~/.cargo/bin/rustpython -m venv env --without-pip`
+
+This would create a virtual environement that looks like this.
+
+![venv](/assets/media/tree.jpg)
+
+Go the directory, open PyCharm, now you can set the interpreter from the virtual environement.
+
+## Setup Visual Studio Code
+
+Install the Python Extension by Micorsoft. Create your Python file and press `Command + Shift + P`, then search for "Python: Select Interpreter", add a new interpreter by using "Enter Interpreter Path" then browse your filesystem, go to `~/.cargo/bin/rustpython`
+
+You can repeat the same steps for creating a virtual environement and using that with Visual Studio Code.
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