An example Python application for students to run to test their local development environment setups.
- Anaconda 3.7+
- Python 3.7+
- Pip
Fork this remote repository under your own control, then "clone" or download your remote copy onto your local computer.
Then navigate there from the command line (subsequent commands assume you are running them from the local repository's root directory):
cd my-first-python-app
Use Anaconda to create and activate a new virtual environment, perhaps called "my-first-env":
conda create -n my-first-env python=3.8
conda activate my-first-env
After activating the virtual environment, install package dependencies (see the "requirements.txt" file):
pip install -r requirements.txt
NOTE: if this command throws an error like "Could not open requirements file: [Errno 2] No such file or directory", make sure you are running it from the repository's root directory, where the requirements.txt file exists (see the initial
cd
step above).
In in the root directory of your local repository, create a new file called ".env", and update the contents of the ".env" file to specify your desired username:
USER_NAME="Jon Snow"
SECRET_PASSWORD="super duper secret"
NOTE: the ".env" file is usually the place for passing configuration options and secret credentials, so as a best practice we don't upload this file to version control (which is accomplished via a corresponding entry in the ".gitignore" file). This means each person who uses our code needs to create their own local ".env" file.
Run the game script:
python app/my_script.py
# alternative module-style invocation (only required if importing from one file to another):
python -m app.my_script
NOTE: if you see an error like "ModuleNotFoundError: No module named '...'", it's because the given package isn't installed, so run the
pip
command above to ensure that package has been installed into the virtual environment.
In the "app/my_script.py" file, un-comment lines 13, and lines 57-62. This code attempts to import and use a function defined in the "app/my_mod.py" file. After un-commenting these lines, save the file and try to re-run it. Notice the file will only run if you use the alternative module-style command (python -m app.my_script
).